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Review of the species of New World Erythroneurini


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Description: Length 2.4–2.7 mm. Forewing outer apical cell elongate, more than 2X as long as wide. 2S abdominal apodemes large, broad, reaching 3S posterior margin. Pygofer lobe angulate; appendage simple with additional small process at base, extended to pygofer apex, distinctly sinuate in dorsal view, straight in lateral view, widest at base. Second point of style apex very short, toothlike; third point elongate, about as long as distance between other two points; angle between basal and third points less than 90°. Dorsal apodeme of aedeagus parallel sided, connection to pygofer membranous; preatrium longer than shaft; shaft curved ventrad, broad in lateral view, depressed, denticulate distally, without processes; apex broadened in ventral view. Coloration usual for genus. Dorsum yellow or white, with orange color pattern. Vertex with orange parallel submedial lines, with lateral branch; midline pale. Anteclypeus pale, concolorous with rest of face. Pronotum with Y- or V-shaped medial vitta. Mesonotum pale, with orange lateral triangles and apex. Thoracic venter entirely pale. Forewings with broken oblique vittae, without crossbands; clavus with separate basal and distal vittae; with dark spot near costal margin; inner apical cell with brown spot basally.

Type locality: Holotype *, USA, Kansas, Leavenworth Co., 28 IV 1928 (Beamer), (KSEM).

Distribution: Central and eastern USA, southeastern Canada.

Host plants: Ostrya virginiana, Corylus americana, Carpinus sp.
2. Eratoneura gillettei (Beamer, 1931) (Fig. 2, Plate 2b)

Erythroneura gillettei Beamer, 1931a:128

Erythroneura (Eratoneura) gillettei Young, 1952b:88

Eratoneura gillettei Dietrich & Dmitriev, 2006a:136
Description: Length 2.9–3 mm. Forewing outer apical cell about 2X as long as wide. 2S abdominal apodemes large, broad, reaching 3S posterior margin. Pygofer lobe angulate; appendage simple, extended to pygofer apex, straight in dorsal and lateral view, widest at base. Second point of style apex very short, toothlike; third point not longer than half distance between other two points; angle between basal and third points less than 90°. Dorsal apodeme of aedeagus with distinct V-shaped ligaments, connected to pygofer appendages; preatrium shorter than shaft; shaft curved dorsad, broad in lateral view, compressed, smooth, with small dorsal distal lobe; apex broadened in ventral view; basal processes arising near midlength of shaft and evenly divergent, distal processes long, apical, slender. Coloration usual for genus; vertex and pronotum with median stripe.

Type locality: Holotype *, USA, Illinois, Wabash Co., 31 III 1929 (Beamer), (KSEM).

Distribution: Central and eastern USA.

Host plants: Unknown.

Notes: The holotype was collected on 31 III 1929, not on 30 III 1929 as stated in the original publication.
3. Eratoneura imbricariae (Ross & DeLong, 1953) (Fig. 3, Plate 2c)

Erythroneura imbricariae Ross & DeLong, 1953a:86

Eratoneura imbricariae Dietrich & Dmitriev, 2006a:136

Description: Length 2.8–3.1 mm. Forewing outer apical cell about 2X as long as wide. 2S abdominal apodemes small, narrow, extended dorsomesad. Pygofer lobe rounded; appendage simple, not extended to pygofer apex, straight in dorsal view, curved downward in lateral view, widest at base. Second and third points of style apex very short, toothlike. Dorsal apodeme of aedeagus with distinct V-shaped ligaments, connected to pygofer appendages; preatrium shorter than shaft; shaft curved ventrad, slender in lateral view, depressed, smooth; apex acuminate in ventral view; basal processes well separated from shaft, shorter than shaft, evenly divergent; distal processes long, subapical, slender. Coloration usual for genus.

Type locality: Holotype *, USA, Illinois, Wayne Co., Fairfield, on Quercus imbricaria, 14 VII 1948 (Mills & Ross), (INHS).

Distribution: Central USA.

Host plants: Quercus imbricaria.
4. Eratoneura lamucata (Ross & DeLong, 1953) (Fig. 4, Plate 2d)

Erythroneura lamucata Ross & DeLong, 1953a:88

Eratoneura lamucata Dietrich & Dmitriev, 2006a:136
Description: Length 2.7–2.9 mm. Forewing outer apical cell about 2X as long as wide. 2S abdominal apodemes small, narrow, extended dorsomesad. Pygofer lobe angulate; appendage simple, not extended to pygofer apex, straight or very slightly curved in dorsal view, curved downward in lateral view, widest at base. Second point of style apex very short, toothlike; third point elongate, longer than half distance between other two points. Angle between basal and third points about 90°. Dorsal apodeme of aedeagus with distinct V-shaped ligaments, connected to pygofer appendages; preatrium about as long as shaft; shaft curved ventrad, slender in lateral view, depressed, smooth, with lateral lobes at base; apex blunt in ventral view, abruptly bent dorsad; basal processes absent, distal processes long, apical, slender. Coloration usual for genus.

Type locality: Holotype *, USA, Illinois, McLean Co., Lake Bloomington, on Rhus toxicodendron, 29 IX 1950 (Ross & Stannard), (INHS).

Distribution: North central USA.

Host plants: Toxicodendron radicans.
5. Eratoneura maculata (Gillette, 1898) (Fig. 5, Plate 2e)

Typhlocyba comes var. maculata Gillette, 1898a:764

Typhlocyba maculata Baker, 1903d:8

Erythroneura comes var. maculata Van Duzee, 1916a:77

Erythroneura (Eratoneura) maculata Young, 1952b:88

Eratoneura maculata Dietrich & Dmitriev, 2006a:137
Description: Length 2.7–2.9 mm. Forewing outer apical cell about 2X as long as wide. 2S abdominal apodemes small, narrow, extended dorsomesad. Pygofer lobe rounded; appendage simple, not extended to pygofer apex, straight, curved downward in lateral view, widest at base. Second point of style apex very short, toothlike; third point not longer than half distance between other two points; angle between basal and third points about 90°. Dorsal apodeme of aedeagus with distinct V-shaped ligaments, connected to pygofer appendages; preatrium shorter than shaft; shaft curved ventrad, slender in lateral view, depressed, smooth, with lateral lobes at base; apex blunt in ventral view, abruptly bent dorsad; basal processes absent; distal processes long, apical, slender. Coloration usual for genus.

Type locality: Syntypes 2 *, USA, Kansas, Pottawatomie Co., Onaga, (Crevecoeur), (USNM).

Distribution: Central and eastern USA, southeastern Canada

Host plants: Toxicodendron radicans.
6. Eratoneura eversi (Ross & DeLong, 1953) (Fig. 6, Plate 2f)

Erythroneura eversi Ross & DeLong, 1953a:88

Eratoneura eversi Dietrich & Dmitriev, 2006a:135
Description: Length 2.4–2.7 mm. Forewing outer apical cell elongate, more than 2X as long as wide. 2S abdominal apodemes large, broad, reaching 3S posterior margin. Pygofer lobe rounded; appendage simple, not extended to pygofer apex, straight or very slightly curved in dorsal view, straight in lateral view, widest at base. Second point of style apex very short, toothlike; third point elongate, longer than half distance between other two points; angle between basal and third points more than 90°. Aedeagus with preatrium shorter than shaft; shaft straight and slender in lateral view, depressed, smooth; apex broadened in ventral view; basal processes absent; distal processes long, subapical, slender. Coloration usual for genus.

Type locality: Holotype *, USA, Illinois, Alexander Co., N.W. Tamms, on Corylus americana, 20 IX 1950 (Ross & Evers), (INHS).

Distribution: Central and eastern USA, southeastern Canada.

Host plants: Corylus americana.
7. Eratoneura noncuspidis (Beamer, 1931) (Fig. 7, Plate 2g)

Erythroneura noncuspidis Beamer, 1931a:129

Erythroneura noncuspidus DeLong & Caldwell, 1937c:76, missp.

Erythroneura (Eratoneura) noncuspidis Young, 1952b:88

Eratoneura noncuspidis Dietrich & Dmitriev, 2006a:137
Description: Length 2.9–3 mm. Forewing outer apical cell about 2X as long as wide. 2S abdominal apodemes small, narrow, extended dorsomesad. Pygofer lobe rounded; appendage simple, not extended to pygofer apex, straight or very slightly curved in dorsal view, straight in lateral view, widest at base. Second and third points of style apex very short, toothlike. Aedeagus with preatrium about as long as shaft; shaft curved ventrad, slender in lateral view, depressed, smooth, with lateral lobes at base; apex truncate in ventral view; basal processes absent; distal processes long, apical, slender. Coloration usual for genus.

Type locality: Holotype *, USA, Illinois, Lawrence Co., 31 III 1929 (Beamer), (KSEM).

Distribution: Central and northeastern USA.

Host plants: Toxicodendron radicans.
8. Eratoneura teshi (Hepner, 1972) (Fig. 8, Plate 2h)

Erythroneura teshi Hepner, 1972c:267

Eratoneura teshi Dietrich & Dmitriev, 2006a:139
Description: Length 2.6–2.8 mm. Forewing outer apical cell about 2X as long as wide. 2S abdominal apodemes small, narrow, extended dorsomesad. Pygofer lobe angulate; appendage simple, not extended to pygofer apex, straight in dorsal view, curved downward in lateral view, widest at base. Second point of style apex well developed; third point not longer than half distance between other two points; angle between basal and third points about 90°. Dorsal apodeme of aedeagus with distinct V-shaped ligaments, connected to pygofer appendages; preatrium shorter than shaft; shaft curved ventrad, slender in lateral view, depressed, denticulate distally; apex emarginate in ventral view; basal processes absent; distal processes long, apical, slender. Coloration usual for genus.

Type locality: Holotype *, USA, Mississippi, Oktibbeha Co., State College, 28 I 1962 (Hepner), (INHS).

Distribution: Central USA.

Host plants: Ulmus rubra.

Notes: The type locality recorded in the original publication was: Illinois, Piatt Co., Monticello, Allerton Park, on Ulmus rubra, 26 IX 1960 (Cunningham).
9. Eratoneura osborni (DeLong, 1916) (Fig. 9, Plate 2i)

Typhlocyba osborni DeLong, 1916a:103

Erythroneura osborni Van Duzee, 1917b:712

Erythroneura basilaris var. dulcis McAtee, 1920a:296, syn.n. (Plate 2i2)

Erythroneura (Eratoneura) osborni Young, 1952b:88

Eratoneura osborni Dietrich & Dmitriev, 2006a:137
Description: Length 2.7–2.9 mm. Forewing outer apical cell elongate, more than 2X as long as wide. 2S abdominal apodemes large, broad, reaching 3S posterior margin. Pygofer lobe rounded; appendage simple, not extended to pygofer apex, slightly curved in dorsal view, curved downward in lateral view, widest at middle. Second point of style apex very short, toothlike; third point not longer than half distance between other two points; angle between basal and third points about 90°. Aedeagus with preatrium about as long as shaft; shaft curved ventrad at apex, slender in lateral view, round in crossection, denticulate distally; apex blunt in ventral view; basal processes arising close to shaft, shorter than shaft, divergent at base, thence parallel; distal processes absent. Forewing with broad red or reddish crossband in basal third.

Type locality: Holotype *, USA, Tennessee, Montgomery Co., Clarksville, 22 VII 1915 (DeLong), (OSU).

Distribution: Central and northeastern USA.

Host plants: Carya ovata, C. illinoinensis, C. ovalis, C. glabra, C. tomentosa, C. leiodermis, and other species of Carya.
10. Eratoneura sandersoni (Ross, 1956) (Fig. 10, Plate 2j)

Erythroneura sandersoni Ross, 1956a:90

Eratoneura sandersoni Dietrich & Dmitriev, 1996a:138
Description: Length 2.9–3 mm. Forewing outer apical cell about 2X as long as wide. 2S abdominal apodemes large, broad, reaching 3S posterior margin. Pygofer lobe rounded; appendage simple, extended beyond pygofer apex, distinctly sinuate in dorsal view, curved upward in lateral view, widest at middle, denticulate. Second point of style apex very short, toothlike; third point elongate, about as long as distance between other two points; angle between basal and third points less than 90°. Aedeagus with preatrium about as long as shaft; shaft straight and broad in lateral view, compressed, denticulate distally, with dorsal carina, often with lateral lobes at base; apex acuminate or blunt in ventral view; basal processes well separated from shaft, parallel to each other on ventral side of shaft, short, toothlike; distal processes absent. Coloration usual for genus.

Type locality: Holotype *, USA, Illinois, Hardin Co., Elizabethtown, on Acer sp., 27 VII 1951 (Richards & Sanderson), (INHS).

Distribution: Illinois.

Host plants: Acer saccharum.
11. Eratoneura crinita (Beamer, 1932) (Fig. 11, Plate 2k)

Erythroneura crinita Beamer, 1932e:85

Erythroneura (Eratoneura) crinita Young, 1952b:88

Eratoneura crinita Dietrich & Dmitriev, 2006a:135
Description: Length 2.8–3 mm. Forewing outer apical cell elongate, more than 2X as long as wide. 2S abdominal apodemes large, broad, reaching 3S posterior margin. Pygofer lobe rounded; appendage simple, extended to pygofer apex, straight or very slightly curved in dorsal view, straight in lateral view, widest at base, with ring of long spines near midlength. Second and third points of style apex very short, toothlike. Dorsal apodeme of aedeagus with distinct V-shaped ligaments, connected to pygofer appendages; preatrium shorter than shaft; shaft curved dorsad, broad in lateral view, compressed, denticulate distally, with dorsal carina; apex acuminate in ventral view; basal processes arising close to shaft, shorter than shaft, slightly divergent, appressed to sides of shaft; distal processes absent. Coloration usual for genus.

Type locality: Holotype *, USA, Arkansas, Searcy Co., Marshall, 22 III 1931 (Nottingham), (KSEM).

Distribution: Central and eastern USA.

Host plants: Castanea pumila.
12. Eratoneura andersoni (Beamer, 1932) (Fig. 12, Plate 2l)

Erythroneura andersoni Beamer, 1932e:86

Erythroneura (Eratoneura) andersoni Young, 1952b:88

Eratoneura andersoni Dietrich & Dmitriev, 2006a:134
Description: Length 2.9–3.1 mm. Forewing outer apical cell elongate, more than 2X as long as wide. 2S abdominal apodemes large, broad, reaching 3S posterior margin. Pygofer lobe rounded; appendage simple, extended to pygofer apex, straight or very slightly curved in dorsal view, straight in lateral view, widest at base, with ring of long spines near midlength. Second and third points of style apex very short, toothlike. Dorsal apodeme of aedeagus triangular, without sclerotized connection to anal tube or pygofer appendages; preatrium shorter than shaft; shaft straight and slender in lateral view, compressed, smooth, with small dorsal distal lobe; apex acuminate in ventral view; basal processes arising close to shaft, almost as long as shaft, parallel to each other on ventral side of shaft; distal processes absent. Coloration usual for genus.

Type locality: Holotype *, USA, Arkansas, Searcy Co., Marshall, 22 III 1931 (Anderson), (KSEM).

Distribution: South central and southeastern USA.

Host plants: Unknown.
13. Eratoneura paraesculi (Knull, 1945) (Fig. 13, Plate 2m)

Erythroneura paraesculi Knull, 1945b:106

Erythroneura (Eratoneura) paraesculi Young, 1952b:88

Eratoneura paraesculi Dietrich & Dmitriev, 2006a:137
Description: Length 3.5–3.7 mm. Forewing outer apical cell elongate, more than 2X as long as wide. 2S abdominal apodemes large, broad, reaching 3S posterior margin. Pygofer lobe angulate; appendage simple, extended beyond pygofer apex, straight in dorsal and lateral view, widest at base. Second point of style apex very short, toothlike; third point elongate, longer than half distance between other two points; angle between basal and third points less than 90°. Aedeagus with preatrium shorter than shaft; shaft straight and broad in lateral view, compressed, denticulate distally; aedeagal apex broadened in ventral view; basal processes arising close to shaft, shorter than shaft, divergent at base, curved posterad; distal processes absent. Forewings with 2 crossbands not reaching lateral margins.

Type locality: Holotype *, USA, Tennessee, Sevier Co., Great Smoky Mountain National Park, Indian Gap, 5000 to 6000 ft., on Aesculus sp., 21 VI 1942 (Knull), (OSU).

Distribution: South of central USA.

Host plants: Unknown, the holotype was collected on Aesculus sp.
14. Eratoneura tammina (Ross & DeLong, 1953) (Fig. 14, Plate 2n)

Erythroneura tammina Ross & DeLong, 1953a:86

Eratoneura tammina Dietrich & Dmitriev, 2006a:138
Description: Length 2.9–3.1 mm. Forewing outer apical cell elongate, more than 2X as long as wide. 2S abdominal apodemes large, broad, reaching 3S posterior margin. Pygofer lobe rounded; appendage simple, extended to pygofer apex, distinctly sinuate in dorsal view, curved downward in lateral view, widest at base. Second point of style apex very short, toothlike; third point not longer than half distance between other two points; angle between basal and third points less than 90°. Dorsal apodeme of aedeagus with distinct V-shaped ligaments, connected to pygofer appendages; preatrium shorter than shaft; shaft straight and slender in lateral view, depressed, denticulate distally; apex truncate in ventral view; basal processes arising close to shaft, shorter than shaft, parallel to each other on ventral side of shaft or slightly divergent; distal processes absent. Coloration usual for genus.

Type locality: Holotype *, USA, Illinois, Alexander Co., N.W. Tamms, 20 IX 1950 (Ross & Evers), (INHS).

Distribution: South of central USA.

Host plants: Quercus stellata, Q. michauxii, Q. lyrata, Q. falcata, and other species of Quercus.
15. Eratoneura texana (Beamer, 1929) (Fig. 15, Plate 2o)

Erythroneura texana Beamer, 1929b:121

Erythroneura (Eratoneura) texana Young, 1952b:88

Eratoneura texana Dietrich & Dmitriev, 2006a:139
Description: Length 2.8–3 mm. Forewing outer apical cell elongate, more than 2X as long as wide. Pygofer lobe rounded; appendage simple, extended to pygofer apex, curved downward in lateral view, widest at base. Second and third points of style apex very short, toothlike. Aedeagus with preatrium about as long as shaft; shaft curved ventrad, slender in lateral view, denticulate distally; basal processes well separated from shaft, short, parallel to each other on ventral side of shaft; distal processes absent. Coloration usual for genus.

Type locality: Holotype *, USA, Texas, Culberson Co., 10 VII 1927 (Beamer), (KSEM).

Distribution: The species is known only from the type locality in Texas.



Host plants: Unknown.
16. Eratoneura separata (Beamer, 1932) (Fig. 16, Plate 2p)

Erythroneura separata Beamer, 1932a:12

Erythroneura (Eratoneura) separata Young, 1952b:88

Eratoneura separata Dietrich & Dmitriev, 2006a:138
Description: Length 2.8–3.1 mm. Forewing outer apical cell elongate, more than 2X as long as wide. 2S abdominal apodemes large, broad, reaching 3S posterior margin. Pygofer lobe rounded; appendage bifurcate near base, branches parallel to each other, extended to pygofer apex, distinctly sinuate in dorsal view, straight in lateral view, widest at base. Second point of style apex very short, toothlike; third point elongate, longer than half distance between other two points; angle between basal and third points about 90°. Aedeagus with preatrium shorter than shaft; shaft curved dorsad, slender in lateral view, round in crossection, denticulate distally, with lateral lobes at base, without processes; apex broadened in ventral view, bent dorsad. Coloration usual for genus.

Type locality: Holotype *, USA, Kansas, Anderson Co., 26 XI 1927 (Beamer), (KSEM).

Distribution: North central USA, southeastern Canada.

Host plants: Tilia americana.
17. Eratoneura curvata (Beamer, 1931) (Fig. 17, Plate 2q)

Erythroneura curvata Beamer, 1931a:132

Erythroneura (Eratoneura) curvata Young, 1952b:86

Eratoneura curvata Dietrich & Dmitriev, 2006a:135
Description: Length 2.9–3.2 mm. Forewing outer apical cell elongate, more than 2X as long as wide. 2S abdominal apodemes large, broad, reaching 3S posterior margin. Pygofer lobe angulate; appendage bifurcate near base, branches parallel to each other, extended to pygofer apex, distinctly sinuate in dorsal view, straight in lateral view, widest at base. Second point of style apex very short, toothlike; third point absent or short toothlike; angle between basal and third points about 90°. Aedeagus with preatrium about as long as shaft; shaft straight and slender in lateral view, compressed, denticulate distally, with lateral lobes at base, without processes; apex acuminate in ventral view. Coloration usual for genus.

Type locality: Holotype *, USA, Kansas, Douglas Co., 1927, (Beamer), (KSEM).

Distribution: Central and eastern USA.

Host plants: Quercus macrocarpa.
18. Eratoneura restricta (Beamer, 1932) (Fig. 18, Plate 2r)

Erythroneura restricta Beamer, 1932c:45

Erythroneura pallida Knull & Auten, 1937a:573, syn.n.

Erythroneura (Eratoneura) restricta Young, 1952b:87

Eratoneura restricta Dietrich & Dmitriev, 2006a:138
Description: Length 2.9–3.1 mm. Forewing outer apical cell about 2X as long as wide. 2S abdominal apodemes large, broad, reaching 3S posterior margin. Pygofer lobe rounded; appendage bifurcate near base, branches forcipate, extended to or beyond pygofer apex, straight or very slightly curved in dorsal view, straight in lateral view, widest at base. Second and third points of style apex very short, toothlike. Aedeagus with preatrium about as long as shaft; shaft straight and broad in lateral view, compressed, denticulate distally, with lateral lobes at base, without processes; apex blunt in ventral view. Coloration usual for genus.

Type locality: Holotype *, USA, Iowa, Story Co., Ames, 18 IV 1930 (Beamer), (KSEM).
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