Cryptotendipes emorsus Townes

• Main Author: Saether, Ole A.
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2010
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Insecta; Diptera; Chironomidae; Cryptotendipes; Cryptotendipes emorsus; Beaver Creek; South Indian Lake
• Online Access: https://doi.org/10.5281/zenodo.6199614; http://treatment.plazi.org/id/03885A20FFC7712D62ADFECCFB9DFE9F

Cryptotendipes emorsus (Townes) Harnischia emorsa Townes, 1945: 161. (Fig. 4) Material examined . CANADA: Manitoba, South Indian Lake, Trailer Bay and Long Bay, male (intersex caused by infection) reared from larva, 3 pupae reared from larvae, 2–10.vii. 1976, E. Phillips; Manitoba, Heming Lake, female reared from larva, Man., 27.vii 1967, A.P. Wiens. Lake Winnipeg records: Beaver Creek, 7.vi. –24.vii. 1971, male with thorax and 3 first abdominal segments of pupal exuviae, 4 males. The male imagines have 3–7, 5 (4) setae on squama; 3–10, 6(4) sensilla chaetica 16 on p2 and none on p3. The hypopygium is illustrated by Saether (1977a fig. 34A). A male reared from larva, as well as mature male and female pupae have been found in South Indian Lake, Man. A female reared from larva from Heming Lake, Man., appears to be C. emorsus although it differs in having longer thoracic horn and caudal spines also on T VIII. Female imago (n = 1, except when otherwise stated) All measurements and ratios completely within the range of female C. tuberosus with the following exceptions: Wing length 1.32 mm. Total length/wing length 1.87. Wing length/profemur 2.87. Head . Ultimate palpal segment apparently about 88 µm. Thorax . Antepronotum with 4 setae. Acrostichals 3. Wing . VR 1.21. Legs . LR1-3, as 1.67, 0.45, 0.61. BV1-3 2.19, 3.63, x.86. SV1-3 1.43, 4.56, 3.40. Genitalia . Gonocoxite IX with 2(2) setae. Notum 90–100 µm (2) long. Seminal capsule 60-62 µm (2) long, 44 µm (2) wide. Genitalia mounted in lateral view on complete specimen. Pupa (n = 4–6, except when otherwise stated) Total length 2.52–3.41, 3.04 mm. Cephalothorax . Cephalic tubercle 30–52, 43 µm high; 21–38, 28 µm, wide; with 33–52, 42 µm long frontal seta. Thoracic horn 1.48-3.65, 2.32 mm long, (3.65 mm in pupa from Heming Lake, Fig.4 C); main stem 0.59–1.93, 1.05 mm long, (1.93 mm in pupa from Heming Lake, 0.59–1.22 in remaining pupae). Abdomen (Fig. 4 A, B). Shagreen and chaetotaxy as illustrated. Caudal margin of T II with 6–14, 8 hooklets (14 in pupa from Heming ...