Dasyhelea atlantis-bermudae Grogan & Hribar, 2025, sp. nov.
Creators: name: Grogan, William L.
name: Hribar, Lawrence J.
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Ceratopogonidae
Dasyhelea
Dasyhelea atlantis-Bermudae

description: 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.
description: Published as part of Grogan, William L. & Hribar, Lawrence J., 2025, New Species of Biting Midges in the Dasyhelea atlantis-bermudae Complex (Diptera: Ceratopogonidae), pp. 519-536 in Zootaxa 5613 (3) on pages 520-521, DOI: 10.11646/zootaxa.5613.3.5, http://zenodo.org/record/15216840