Nearctic Chironomus: C. species 8TE

Chironomus species 8TE,

from BOLD Database

The current identity of this species is unknown - it may be one of the previously named Arctic species, of which there are a few possibilities such as C. biseta.

In BOLD Bin: BOLD:AAC0595

Adult:

Some characters of the adult males can be determined from photographs in the BOLD Database:
Male: Color dark blackish-brown, abdomen with a thin pale stripe at the posterior margin of segments II-VII; legs apparently paler, knees slightly darkened.

Adult male of C. sp.8TE from Greenland (BOLD Database)

AR about 3.
Wing length about 5.38-5.43 mm, width about 1.1 mm, VR about 1.0.
Palps pale, segment lengths (segs. 2-5) (micron) 114 : 400 : 315 : 485.
Legs with a weak beard. Approximate proportions (micron):

	Fe	Ti	Ta1	Ta2	Ta3
PI	1665	1765	2600	1170	750
PII	1715	1590	950	570	240
PIII	2140	2460	1715	945	600
	Ta4	Ta5	LR	F/T	BR
PI	645	265	1.48	11.07	low
PII	490	280	0.65-0.70	1.05
PIII	490	245	0.65-0.70	abt 0.8

Pupa: Not known.

Larva: The larva from Manitoba is either a thummi- or plumosus-type larva, but this does not mean that this is the case for Greenland larvae, as no such larval type is currently known there.

Larva of C. sp. 8TE from Manitoba, Canada (BOLD Database)

Larval head capsule is relatively dark, with gula darker. Presence of lateral projections could not be determined; ventral tubules long, and posterior pair coiled. Anal tubules appear to be relatively long and possibly with a constriction in the middle.

Cytology: Not known

Molecular sequence:
mtCOI: There is sequence in the BOLD Database.

Found: Manitoba - nr. Churchill (58.738°N, 93.819°W) (BOLD)
Greenland - Lake Tasersuaq, Kitaa, Kujalleq (60.2643°N 44.5389°W); Narsarsuaq, Kujalleq (61.1556°N, 45.3785°W) (both BOLD).