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 : 24-25

Oropuella sp. F 3

Material examined: USA. WASHINGTON: Pend Oreille Co., North Fork Sullivan Creek , 48.8607°N, 117.3272°W, 19.vii.2017, WADOE17SE004 (1 female pupa (slide) [ AFPC]) .

Diagnostic characters: Adult female. Tergite IX semicircular, with ~11 setae. Gonapophysis VIII dorsomedial lobes nearly touching at apex.

Description: Adult female (pharate). Figs 1d , 3c, f, i . Measurements (n = 1): flagellomeres (μm): 51, 41, 40, 41, 62; AR 0.35; spermathecae 157–159 x 102. Tergite IX semicircular. Gonapophysis VIII dorsomedial lobes nearly touching medially, apex broadly pointed; ventrolateral lobes separate.

Pupa. Fig. 4g . Measurements (n = 1): length 2.5 mm. Sternites VI–VII with posterior spinule band.

Oropuella unassociated larval material: USA. CALIFORNIA: Lassen Volcanic National Park, Manzanita Creek, 40.5373°N, 121.5926°W, 21.viii.2017, NPS17LAS010 (1 larva (slide) ANSP-ENT-124838 [ ANSP]); Redwood National Park , Godwood Creek , 41.3704°N, 124.026°W, 11.vi.2018, NPS18 REDW002 (2 larvae (slide) ANSP-ENT-124836–124837 [ ANSP]); Redwood National Park, Unnamed Streelow Creek Trail , 41.3465°N, 124.0387°W, 6.vi.2018, NPS18 REDW003 (1 larva (alcohol) ANSP-ENT-124839 [ ANSP]). MONTANA: Granite Co., Lolo National Forest, Butte Cabin Creek, 46.512°N, 113.745°W, 29.v.2016, leg. A Fasbender (1 larva (slide) [ AFPC]); Lewis and Clark Co., Dearborn River Middle Fork downhill from Hwy 200, 47.0914°N, 112.3618°W 27.ix.2017. MTDEQ17 REF4005 (8 larvae (alcohol) [ AFPC]). OREGON: Crater Lake National Park, Sun Creek , 42.8656°N, 122.08647°W 12.ix.2018, NPS18CRLA026 (3 larvae (slide) ANSP-ENT-124833–124835 [ ANSP]); Josephine Co., Booze Creek at RM 0.2, 42.6596°N, 123.6597°W 24.viii.2017, ODEQ17 SH031 (1 larva (alcohol) [ AFPC]); Oregon Caves National Monument, Cave Creek , 42.098°N, 123.411°W, 2.vi.2015, NPS15 ORCA001 (1 larva with pharate pupa ANSP-ENT-124832, 4 larvae (slide) ANSP-ENT-124828–124831 [ ANSP]; 1 larva sequenced). WASHINGTON: King Co., Vashon Island, Judd Creek, 28A_17, 47.4034°N, 122.4688°W, 3.viii.2017, KC17VAS003 (1 larva (slide) [ AFPC]); Pierce Co., Huckleberry Creek , 47.0085°N, 121.6173°W 2.viii.2017, WADOE17 AM006 (3 larvae (alcohol) [ AFPC]).

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.