OROPUELLA, A NEW GENUS OF ORTHOCLADIINAE FROM THE WESTERN NEARCTIC Abstract Author Fasbender, Andrew Rhithron Associates Inc., 33 Fort Missoula Road, Missoula, MT 59804, USA afasbender@rhithron.com text CHIRONOMUS Journal of Chironomidae Research 2020 2020-02-12 33 17 30 journal article 30580 10.5324/cjcr.v0i33.3068 72f48bb4-940b-4267-8621-ac3eac9a9d54 2387-5372 7996044 B1BF8C50-50DE-432B-BA3E-BC86F743481D 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 .