Procladius (Holotanypus) freemani Sublette

• Main Author: Saether, Ole A.
• Format: Text
• Language: unknown
• Published: Zenodo 2010
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Insecta; Diptera; Chironomidae; Procladius; Procladius freemani; Canada; Indian; British Columbia; Great Slave Lake; Dillon; Caldwell; Harding; South Indian Lake; Long Point; Beaver Creek; Alaska
• Online Access: https://dx.doi.org/10.5281/zenodo.6209892; https://zenodo.org/record/6209892

Procladius (Holotanypus) freemani Sublette (Figs 8 A–C; 12 B, H; 13 B, I, L; 14 E) Procladius freemani Sublette, 1964 a: 122. Prothenthes choreus ? Malloch, 1915: 387. Procladius (Procladius) freemani Sublette; Roback 1971: 170, 1980: 36; Saether 1977: 48. Material examined . CANADA: Manitoba, Lake Winnipeg, Victoria Beach, 10 males, 9.vii. & 25.vii. 1969; Pine Dock, 20 males, 2 females, 10.vii. 1969; 0.5 km off George Island, 5 males, 11.vii. 1969; 3 km off Grand Rapids, 61 males, 13.vii. 1969; 10 km off Long Point (Sturgeonskin Point), 1 male, 14.vii. 1969; 3 km off McCreary Island, 2 males, 15.vii. 1969; Gull Harbor, 8 males, 16.vii. 1969; Grand Rapids Government Wharf, 374 males, 28.vii. 1969; 5 km off Selkirk (Horse) Island, 4 males, 29.vii. 1969; Mukutawa River Buoy, 2 males, 3.x. 1969; McBeth Harbor, 1 male, 30.vii. 1969; Beaver Point, 45 males, 30.vi.– 19.viii. 1969; 20 Mile Creek, 17 males, 26.viii. & 1.ix. 1969; Old Fishing Dock, 66 males, 11. & 18.viii. 1969; Calders Dock, 7 males, 5.– 31.viii. 1969; Hecla Island, 44 males, 24. – 25.viii. 1969; Beaver Creek, emergence trap, 2 males, 19.vii. 1969; off Ironwood Point, 1 male reared from larva, 25.vii. 1969; South Basin, 260 larvae, 4.vi.– 31.x. 1969; Narrows, 182 larvae, 4.vi.– 31.x. 1969; North Basin, 261 larvae, 2 pupae, 4.vi.– 31.x. 1969. The gonostylus of the Lake Winnipeg specimens (Fig. 8 C) appear to be most similar to the Saskatchewan and Wisconsin specimens illustrated by Roback (1971 figs. 280–281). Also the male scutum (Fig. 8 B) appears to be close to the Wisconsin population (Roback 1971 fig. 295). The tentorium, stipes and cibarial pump appear in Fig. 8 A. The female lacks setae on anepisternum II, has about 25 setae on segment X and about 9–14 sensilla chaetica proximally on each ta 1 of p 2 and p 3. Pupa (n = 3) Cephalothorax . Thoracic horn (Fig. 12 B) 380–442 µm long, 120–128 µm wide, plastron plate diameter 72– 132 µm, apical constriction of horn chamber 32–66 µm wide, length/width of thoracic horn 2.97–3.63, width of thoracic plastron plate /width of horn 0.59–1.10, width of plastron plate/width of constriction 1.94–2.25. Abdomen . Anal lobe (Fig. 12 H) with 32–37 spines along outer margin, medium length spines in relatively sparse row posterolaterally. Fourth instar larva (n = 10, except when otherwise stated) Head capsule length 570–760, 680 µm (600) [660–780 µm in Moore & Moore (1978)]. Head . Antenna as in Fig. 13 B. Length of antennal segments (in µm): 152–134, 172; 19 –22, 21; 6 –8, 7; 2; 2. AR 4.69–6.30, 5.56 [4.00– 6.25 in Roback (1980), 5.4–6.3 in Moore & Moore (1978)]. Basal antennal segment 34 – 38, 36 µm wide; 4.22–5.11, 4.79 times as long as wide; ring organ 0.71–0.78, 0.75 from base; blade 24 –33, 26 µm; accessory blade 18 –26, 23 µm long. Apical style of second segment 5 –8, 7 µm long. Apex of labrum as in Fig. 13 I. Mandible 120–138, 132 µm long[140–150 µm in Moore & Moore (1978)], 151–200 µm in Roback (1980)]. Maxilla about as in P . culiciformis (Fig. 14 B); palp (Fig. 14 E) 44 –52, 48 µm long; 18 –20, 19 µm wide; 2.32–2.78, 2.50 times as long as wide; 2 -segmented sensilla basiconica (SBP) shorter than bisensillum (Bs), its basal segment shorter than its apical segment. Length of basal antennal segment/length of palp 3.04–4.05, 3.58. Hypopharyngeal pecten with 11–13, 11.6 (16) teeth. Abdomen . Claws of posterior parapods about as in P. culiciformis (Fig. 14 K). Distribution and ecology . The species including its varieties is known from all over U. S. A. and Canada (Oliver et al. 1990: 15; Spies 1999; Epler 2003, 2010; Caldwell 2009). In addition to the records by Roback (1971: 171) specimens have been found from Harding Lake, Alaska, Marion Lake, British Columbia and South Indian Lake, Man. The species appears to be primarily a lake species perhaps most common in moderately eutrophic to oligotrophic lakes. The distribution in Lake Winnipeg is shown in Fig. 1, the emergence pattern in Fig. 9. : Published as part of Saether, Ole A., 2010, Procladius Skuse from Lake Winnipeg, Manitoba, Canada, with keys to some females and immature stages of the genus (Diptera: Chironomidae), pp. 34-58 in Zootaxa 2726 on page 44, DOI: 10.5281/zenodo.200030 : {"references": ["Sublette, J. E. (1964) Chironomidae (Diptera) of Louisiana I. Systematics and immature stages of some lentic chironomids of westcentral Louisiana. Tulane Studies of Zoology, 11, 109 - 150.", "Malloch, J. R. (1915) The Chironomidae or midges of Illinois, with particular reference to the species occurring in the Illinois river. Bulletin of the Illinois State Laboratory of Natural History, 10, 275 - 543.", "Roback, S. S. (1971) The adults of the subfamily Tanypodinae (= Pelopiinae) in North America (Diptera: Chironomidae). Monograph of the Academy of Natural Sciences of Philadelphia, 17, 1 - 410.", "Saether, O. A. (1977) Female genitalia in Chironomidae and other Nematocera: morphology, phylogenies, keys. Bulletin of the Fisheries Research Board of Canada, 197, 1 - 209.", "Moore, J. W. & Moore, I. A. (1978) Descriptions of larvae of four species of Procladius from Great Slave Lake (Chironomidae: Diptera). Canadian Journal of Zoology, 56, 2055 - 2057.", "Roback, S. S. (1980) The immature chironomids of the eastern United States IV. Tanypodinae - Procladiini. Proceedings of the Academy of Natural Sciences of Philadelphia, 132, 1 - 63.", "Oliver, D. R., Dillon, M. E. & Cranston, P. S. (1990) A catalog of Nearctic Chironomidae. Research Branch Agriculture Canada Publication, 1857 / B, 89 pp.", "Spies, M. (1999) A listing of Chironomidae reported from California. Version of November 1999. Available from: http: // insects. ummz. lsa. umich. edu / ~ ethanbr / chiro / chklists / california. html", "Epler, J. (2003) Epler's checklist of the Chironomidae of North and South Carolina (last updated 7 July 2003). http: // home. comcast. net / ~ johnepler 3 / NCSCCHCK. pdf", "Epler, J. (2010) Checklist of the Chironomidae of Florida (last updated 10 February 2010). http: // home. comcast. net / ~ johnepler 3 / FLchiro. html", "Caldwell, B. (2009) The Chironomidae (Diptera) of Georgia (USA) (Last updated June 2, 2009.) http: // home. mindspring. com / ~ bacaldwell / index. html"]}