Telopelopia okoboji (Walley),

Saether, Ole A., 2011, Notes on some tanypods from Lake Winnipeg, Manitoba, Canada (Diptera: Chironomidae), Zootaxa 3069, pp. 26-42: 36

publication ID

http://doi.org/ 10.5281/zenodo.201708

persistent identifier

http://treatment.plazi.org/id/B736ED54-FFE2-C20C-8B8C-B7F0BBBA75FF

treatment provided by

Plazi

scientific name

Telopelopia okoboji (Walley)
status

 

Telopelopia okoboji (Walley) 

( Fig. 5View FIGURE 5 I –L; 7 E, F)

Material examined. CANADA: Manitoba, Lake Winnipeg, Victoria Beach, 2 males, 25.vii. 1969; Pine Dock, 2 males, 31.vii. 1969. South Basin, 3 prepupa larvae, 4.– 17. vii. 1969.

The hypopygium is illustrated ( Fig. 7View FIGURE 7. A, B E –F). Some specimens had 1 seta on the preepisternum.

Fourth instar larva (n = 3, except when otherwise stated)

Total length 6.54–7.87 mm. Head capsule length 0.61–0.67mm.

Head. Apex of antenna as in Fig. 5View FIGURE 5 I. Lengths of antennal segments (in µm): 202–234; 38–43; 6–7; 3–4. AR 4.25–4.75. Basal segment 24 –26, 1 wide; ring organ 0.69–0.73 from base; blade 49 µm (1); accessory blade 17 µm (1) long. Apical style of second segment 7–8 µm long. Apex of labrum as in Fig. 5View FIGURE 5 J. Mandible 105–120 µm long. Basal segment of maxillary palp 40–46 µm long, 10–12 µm wide. Ligula ( Fig. 5View FIGURE 5 K) 58–74 µm long. Paraglossa ( Fig. 5View FIGURE 5 K) 24–30 µm long.

Abdomen. Procercus 116–130 µm long, 32–39 µm wide, 2.95–3.44 times as long as wide. Anal setae 515–650 µm, Sa 380–491 µm, supraanal seta/anal setae 0.71–0.78. Anal tubules 200–260 µm long. Posterior parapods 454– 630, 520 long.

Pupa (n = 2, based on prepupae)

Thoracic horn ( Fig. 5View FIGURE 5 L) 405–410 µm long, 134–135 µm wide. Thoracic comb with 10–11 spines, the longest 50–60 µm.

Remarks. Most measurements fit well with the measurements given by Roback (1981: 127) except that the AR of these specimens are higher.

Distribution. T. okoboji  is known from Manitoba, Minnesota, Iowa, Ohio, Maryland, Virginia, Kansas and New Mexico ( Oliver et al. 1990: 14, Ashe & O’Connor 2009: 235).