Cryptochironomus

• Main Author: Saether, Ole A.
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2009
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Insecta; Diptera; Chironomidae; Cryptochironomus; Beaver Creek
• Online Access: https://doi.org/10.5281/zenodo.6220736; http://treatment.plazi.org/id/03AA946EFFFAE06313D0F88FFB90FE2B

Cryptochironomus ? ramus var. Cryptochironomus sp. B Chang et al. 1994: 13. Material examined . CANADA: Manitoba, Lake Winnipeg records: 3 km off McCreary Island, 1 male, 15.vii. 1969; Gimli Government Wharf, 24.vii. 1969; Beaver Point, 9 males, 7.vii.–6.viii. 1971; Beaver Creek, 2 males, 22–29.vii. 1971. Six males from Lake Winnipeg have a lower AR and LR, and are smaller than the other C. ramus. They may represent another species or be merely a variety or form of C. ramus . On an average, their size is 22% smaller than that found in males of C. ramus . Some measurements are (n=6): Total length 5.27–6.29, 5.72 mm. Wing length 2.37–2.80, 2.53 mm. Total length/Wing length 2.22–2.48, 2.32. Head . AR 2.52–2.80, 2.68. Temporals 24–32, 28. Clypeus with 11–20, 17 setae. Tentorium 153–173 long. Thorax . Dorsocentrals 13–19, 15; prealars 5–8, 7. Scutellum with 16–36, 27 setae. Wing . R4+5 with 12–17, 14 setae. Squama with 10–18, 15 setae. Legs . LR1–3: 1.31–1.47, 1.40; 0.52–0.56, 0.54; 0.63–0.67, 0.65. Hypopygium . Gonocoxite 176–200, 190 µm; gonostylus 176–186, 182 µm. Published as part of Saether, Ole A., 2009, Cryptochironomus Kieffer from Lake Winnipeg, Canada, with a review of Nearctic species (Diptera: Chironomidae), pp. 1-24 in Zootaxa 2208 on pages 14-15, DOI: 10.5281/zenodo.189776