Actia. 463 



greyish black. Abdomen coloured and with bristleg as in the othcr 

 species; the white front bands very narrow. Legs black. Wings with 

 the posterior cross-vein in the middle between medial cross-vein 

 and angle; anal vein not reaching margin; subcostal vein with short 

 and dense bristles in outer half ; cubital vein with bristles well beyond 

 medial cross-vein; underside of subcostal vein bare or with more or 

 fewer small hairs; postical vein bare. Squamulæ yellowish. Halteres 

 yellow. 



Female. Similar; frons a little broader; antennæ pale at base, 

 third joint more or less brownish, less broad than in male. 



Length 4,5 mm. 



A. nigroscutellata is rare in Denmark, I know only four spec- 

 imens, two males and two females, from Tisvilde; they are all bred, 

 the two males from Cijdia ustomaculana on ^/g — ^Ve? one female 

 from Olethreiites roseomaculana or dalecarliana on ^^/g and one from 

 an undetermined Microlepidopteron on ^^/g (Kryger). 



Geographical distribution: — Hitherto known from Denmark 

 and Germany. 



Remarks: Villeneuve has communicated to me that he thinks 

 it pogsible that the species is identical with injantula Zett., and this 

 might also seem probable. I have, however, examined Zetterstedt's 

 types and found these to be another species. It is very similar to the 

 present, but it is smaller; abdomen has, besides the narrow bands, 

 some white pruinosity, leaving a black middle stripe. The antero- 

 dorsal bristles on hind tibiæ are rather equal, while they are unequal 

 in nigroscutellata^ and finally the second joint of arista is short. On 

 the other hånd injantula apud Stein is no doubt identical with the 

 present species, as Stein gives the second joint of arista as elongated. 



6. A. fissicornis Strobl. 



1910. Strobl, Mitth. Naturwiss. Verein. f. Steirm. 46, 139 {Thryptocem). 



— 1923. Bezzi, Proced. Linn. Soc. New. S. Wales, XLVIH, 656 {Schizotachina). 



— 1924. Stein, Arch. f. Naturgesch. 90, 6, 133, 7. — Thryptocera exoleta Strobl 

 (nec Meig.) 1. c. 1894, 30, 42. — 1895. Mik, Wien. Ent. Zeitg. XIV, 102. 



Male. Again similar to the preceding. Frons considerably broader 

 than the eye, almost not protruding. Jowls at most one fourth of the 

 height of the eye. Head greyish brown; jowls yellowish; frontal 

 stripe brownish yellow. The hairs on orbits produced just on upper 

 part of cheeks. Occiput besides the black hairs with a few pale hairf^: 

 below. Antennæ black or blackish brown, basal joints reddish; third 



