485. 

 CORDYLURA LIVENS. 



Order Diptera. Fam. Muscidae. 



Type of the Genus, Musca pubera Linn. 



CoRDYLURA Fall., Meig., Cm-t. — Ocyptera Fab. — Hydromyza Fall. 

 — Musca Linn., Fab. 



Antenna inserted in a cai'ity under a slight protuberance in 

 front of the face, contiguous, drooping, velvety, 5-jointed, basal 

 joint rather small and subtrigonate, having a few strong Iiristles 

 at the apex, Snd large and similar in form, furnished with some 

 long and stout bristles above and a few beneath at the apex, 

 3rd joint the longest, oblong, on the back of which near the 

 base is inserted the 4th, which is small, 5 th a stout seta very 

 hairy at the base and j^lumose to a little beyond the middle (3). 

 Labrum shorter than the lip, horny hollow and notched at the 

 apex (1 b). Tongue shorter than the labrum, horny and attenu- 

 ated, rounded at the apex (c). Paljn longer than the labrum, 

 large, clavate and very pilose (e). Lip stout and short, very 

 hairy and divided at the apex (g). 

 Head subglobose (2, the profile ; 2^ front view): face sloping imvard, 

 with I or 2 bristles at the angles of the clypeus, ivhich is membra- 

 nous with a large cavity beneath to receive the trophi ; croivn of head 

 with 2 series of bristles. Eyes large lateral and ovate, not very 

 remote, but nearly equally so in both sej:es : ocelli 3 in triangle 

 slightly elevated on the crown of the head. Thorax ovate, truncated 

 before: scutellum promi?ient semi-ovate. Abdomen 7 -jointed, 

 linear and clavate in male (7), elliptical and conical at the apex in 

 the female. Wings incumbent and parallel when at rest, rather short 

 and broad, the 4th and 5th longitudinal nervures united by a trans- 

 verse one at the middle, and the 5th and 6th towards the margin. 

 Halteres rather small and capitate. Legs more or less armed with 

 spiny bristles : thighs rather long and robust : tibiae, anterior the 

 shortest: tarsi 5-jointed, basal joint the longest, the others oblong, 

 the apical one scarcely longer than the preceding. Pulvilli large : 

 claws strong. 

 Obs. The trophi were drawn from C. pudica. 



Livens Fab. Ent. Syst. 4. 345. 185.— Curt. Guide, Gen. 1292. 31. 

 Cinereous, jjubescent, not shining : palpi slightly dilated and 

 ferruginous : antennse small naked and black, 3rd joint subovate, 

 the seta slightly pubescent at the base (3*) ; a ferruginous spot 

 above them, the hypostoma yellow, margin of eyes hoary : thorax 

 with the shoulders hoary, 2 pale stripes before at the centre, 

 with a black line down the middle of each. Abdomen de- 

 pressed, elliptical, rounded at the apex. Wings longer than 

 the body, slightly fuscous, the nervures brown : halteres ochre- 

 ous. Legs ferruginous ; thighs cinereous except at their tips ; 

 tibiae with a dusky cinereous band round the middle ; tarsi 

 fuscous at their tips. 



In the Author's Cabinet. 



