Coenosia demoralis Huckett, 1965

Vikhrev, Nikita E. & Sorokina, Vera S., 2017, Taxonomic notes and faunistic data on the Muscidae (Diptera) of the Altai Mountains (Russia), Zootaxa 4311 (2), pp. 241-254 : 251

Coenosia demoralis Huckett, 1965

Fig. 2

Coenosia demoralis Huckett, 1965: 170 , 171 (key) and 172. Type locality: Churchill , Manitoba [ Canada].

Descriptive notes: Our specimens agree with Huckett’s description. It is necessary only to add some characters: postpedicel completely intensively yellow or brownish in apical half; gena broad, height of gena 2 times width of postpedicel; scutum grey without longitudinal stripes; f2 with 2 long pv setae in basal half; t2 with distinct ad seta (short in males and long in females) and 1 pd seta; t3 with 1 strong ad seta in middle, without pd setae (one male has 1 short pd on one leg).

This species can be incorporated into the recent key to Siberian Coenosia ( Sorokina, 2009: 6) as follows: 14 couplet as in Sorokina (2009)

14a Mid femur without a strong anterior seta; gena distinctly broader than postpedicel; abdomen blackish at base, without yellow marks. Male: mid tibia with a short but distinct anterodorsal seta, last tarsomere yellow or brown at apex. Female: tarsi brownish-yellow............................................................................. demoralis Huckett - Mid femur without a strong anterior seta; gena not broader than postpedicel, equal to or narrower than its width; abdomen yellow or partly so at base. Male: mid tibia without short anterodorsal seta, last tarsomere completely black. Female: all tarsi completely black........................................................................................15

Figures

FIGURE 2. Coenosia demoralis, male. A. Holotype, lateral view (photo: Shannon Henderson). B. Holotype, dorsal view (photo: Shannon Henderson). C. Terminalia, lateral view. D. Cercal plate, dorsal view.