Oropuella sp. F

Fasbender, Andrew, 2020, OROPUELLA, A NEW GENUS OF ORTHOCLADIINAE FROM THE WESTERN NEARCTIC Abstract, CHIRONOMUS Journal of Chironomidae Research 33, pp. 17-30 : 24

Oropuella sp. F 2

Material examined: USA. WASHINGTON: King Co., Vashon Island, Judd Creek , 28A_17, 47.4034°N, 122.4688°W, 3.viii.2017, KC17VAS003 (1 female pupa (slide) ANSP-ENT-124826 [ ANSP], 1 female pupa (slide) [ AFPC]) .

Diagnostic characters: Adult female. Tergite IX semicircular. Gonapophysis VIII dorsomedial lobes broadly separated.

Description: Adult female (pharate). Figs 1d , 3b,e,h . Measurements (n=1): flagellomeres(μm): 58, 34, 39, 38, 42; AR 0.24; spermathecae 164– 182 x 92–108. Tergite IX semicircular, with ~11 setae. Gonapophysis VIII dorsomedial lobe weakly convergent at apex, coming to distinct point; ventrolateral lobes separate.

Pupa. Fig. 4f . Measurements (n=2): length 2.1– 2.2mm. Sternites VI –VII with posterior spinule band .

Figures

Figure 1. Adult antennae. Male antennae: a) Oropuella eidolon n. sp.; b) Oropuella pallida n. sp. Female antennae: c) Oropuella sp. F1; d) Oropuella sp. F2; e) Oropuella sp. F3. a), b) and d) exhibit some foreshortening due to the position of the antenna on the specimen; setae omitted; scale bar = 100 μm.

Figure 3. Female genitalia. a–c overall dorsal view: a) Oropuella sp. F1; b) Oropuella sp. F2; Oropuella sp. F3. d–f overall ventral view: d) Oropuella sp. F1; e) Oropuella sp. F2; f) Oropuella sp. F3. g–i spermathecae: g) Oropuella sp. F1; h) Oropuella sp. F2; i) Oropuella sp. F3. Scale bar = 100 μm.

Figure 4. Pupae. a) Oropuella eidolon n. sp. complete abdomen, dorsal view; b) Oropuella sp. F2 thoracic horn; c) Oropuella eidolon n. sp. apical abdominal segments, ventral view; d) Oropuella pallida n. sp. apical abdominal segments, ventral view; e) Oropuella sp. F1 apical abdominal segments, ventral view; f) Oropuella sp. F2 apical abdominal segments, ventral view; g) Oropuella sp. F3 apical abdominal segments, ventral view. Setae omitted except in 4a, setae D2–5 illustrated only on tergite V; scale bars = 100 μm.