Dasyhelea garymulleni, Grogan & Hribar, 2025

Grogan, William L. & Hribar, Lawrence J., 2025, New Species of Biting Midges in the Dasyhelea atlantis-bermudae Complex (Diptera: Ceratopogonidae), Zootaxa 5613 (3), pp. 519-536 : 520-521

Key to adults in the Dasyhelea atlantis-bermudae Complex (females of D. garymulleni sp. nov. are unknown)

1. Males.............................................................................................. 2

Females............................................................................................. 7

2. Medial portion of aedeagus short ( Figs. 11–12 ) semi-tubular, apex extending to or near apices of gonocoxites, tip concave with recurved apicolateral extensions; tergite 9 short, apex broadly rounded with very short apicolateral processes with a single large subapical seta; gonocoxal apodemes and paramere slightly asymmetrical, barely fused or separated with a lightly sclerotized triangular posterior process.................................................... D. bermudae Wirth & Williams

Medial portion of aedeagus elongate ( Figs. 4–5 , 19–20 , 27–28 ) tubular, apex extending to apices of gonocoxites.......... 3

3. Medial portion of aedeagus ( Figs. 4–5 ) long, tubular, their apices extending to or near apices of their gonocoxites, tip broad, hollow, basal portion with moderately long recurved apicolateral extensions; tergite 9 elongate, extending beyond gonocoxites with rounded apex and moderately long stout apicolateral processes; sternite 9 moderately long, with convex apical margin; gonocoxal apodemes and paramere asymmetrical, divided............................... D. atlantis Wirth & Williams

Disto-median portion of aedeagus tubular or semi-tubular, moderately long, apex extending to or near apices of gonocoxites, tip solid with recurved apex, basal portion without recurved apicolateral extensions; tergite 9 elongate; sternite 9 moderately long, with convex apical margin; gonocoxal apodemes and paramere asymmetrical...................................... 4

4. Aedeagus ( Figs. 27–28 ) basal portion broad, distal portion slender with a deep or moderately deep apex; gonocoxites short, broad; gonostyli relatively short with a baso-ventral group of stout setae and a slightly hooked apex; gonocoxites massive, broad; gonostyli relatively short with a baso-ventral group of stout setae and a slightly hooked apex.... D. woodruffi sp. nov.

Aedeagus with at least basal portion slender................................................................ 5

5. Aedeagus ( Figs. 19–20 ) basal half-slender, distal half stout, tubular with thick walls and concave tip; apicolateral processes elongate, slender; gonocoxal apodemes and paramere fused, symmetrical with a short quadrate distal portion................................................................................................ D. danklinei sp. nov.

Aedeagus slender basally and distally..................................................................... 6

6. Wing with a very short costa ( Fig. 34 ) (costal ratio 0.38–0.40); aedeagus slender ( Figs. 35–36 ), vasiform, with a greatly elongated disto-medial process, the apical 1/3 is tapered distally with a slightly flared apex and greatly elongated apicolateral arms; aedeagus broad, length/width ratio 1.72–2.55......................................... D. wilkeningi sp. nov.

Wing with a longer costa ( Fig. 43 ) (costal ratio 0.43); aedeagus elongate, very slender ( Fig. 44 ), length/width ratio 1.69...................................................................................... D. garymulleni sp. nov.

7. Genital sclerotization ( Fig. 8 ) distinct, distal portion ovoid with broad ovoidal lumen; basal portion broad with deep central excavation, lateral arms elongate with blunt apices; spermatheca globular, tapered distally with a short to moderately long slender neck (length 0.04–0.09 (0.05, n=18) mm); antenna ( Fig. 6 ) with elongate flagellomeres 9–13............................................................................................... D. atlantis Wirth & Williams

Genitalia and antenna not as above....................................................................... 8

8. Genital sclerotization ( Fig. 16 ) ovoid with ellipsoid lumen; spermatheca large, broader than long, very heavily sclerotized, thick-walled with a short, nipple-like neck; antenna ( Fig. 13 ) with shorter flagellomeres 9–13.................................................................................................... D. bermudae Wirth & Williams

Genital sclerotization not ovoid.......................................................................... 9

9. Genital sclerotization indistinct; antennal flagellomeres ( Fig. 37 ) 1–12 short, 13 more elongate; spermatheca ( Figs. 39–40 ) slightly flattened with very thick exterior wall............................................. D. wilkeningi sp. nov.

Genital sclerotization quadrate......................................................................... 10

10. Thorax ( Fig. 21 ) dark brown with some paler sections; antennal flagellomeres ( Fig. 22 ) dark brown, 13 th with semi-pointed tip; genital sclerotization ( Fig. 24 ) quadrate with pale medial portion and slender distal apices; spermatheca ovoid with narrow slender apex......................................................................... D. danklinei sp. nov.

Thorax ( Fig. 30 ) dark on basal section, lateral sections pale or golden; antennal flagellomeres ( Fig. 29 ) medium brown, 13 th with rounded apex; genital sclerotization ( Fig. 32 ) very pale, quadrate with divergent baso-lateral apices; spermatheca slightly ovoid with broader apex............................................................... D. woodruffi sp. nov.

Figures

FIGURES 9–18. Dasyhelea bermudae. Figs. 9–10. Lateral view, male. Figs. 11–12. Genitalia, male. Fig. 13. Head, female. Fig. 14. Thorax, female. Fig. 15. Wing, female. Fig. 16. Genitalia, female.

FIGURES 1–8. Dasyhelea atlantis. Fig. 1. Head, male. Fig 2. Thorax, male. Fig. 3 Wing, male. Figs. 4–5. Genitalia, male. Fig. 6. Head, female. Fig. 7. Wing, female. Fig. 8. Genitalia, female.

FIGURES 17–24. Dasyhelea danklinei. Fig. 17. Head, male. Fig. 18. Wing, male. Figs. 19–20. Genitalia, male. Fig. 21. Thorax, female. Fig. 22. Head, female. Fig. 23. Wing, female. Fig. 24. Genitalia, female.

FIGURES 25–32. Dasyhelea woodruffi. Fig. 25. Head, male. Fig. 26. Wing, male. Figs. 27–28. Genitalia, male. Fig. 29. Head, female. Fig. 30. Thorax, female. Fig. 31. Wing, female. Fig. 32. Genitalia, female.

FIGURES 33–40. Dasyhelea wilkeningi. Fig. 33. Head, male. Fig. 34. Wing, male. Figs. 35–36. Genitalia, male. Fig. 37. Head, female. Fig. 38. Wing, female. Fig. 39. Spermatheca. Fig. 40. Genitalia, female.

FIGURES 41–44. Dasyhelea garymulleni, male Fig. 41. Thorax. Fig. 42. Head. Fig. 43. Wing. Fig. 44. Genitalia.