Dolicliopodidae. 233 



— Hind metatarsus not longer than the second joint; wings 



with the subcostal vein short 9. elongata. 



8. Hind metatarsus with long hairs 7. confinis. 



— Hind metatarsus without long hairs 8. auricolUs. 



F e m a 1 e s. 



1 . Scutellum hairy above 2. 



— Scutellum not hairy above 3. 



2. Thorax hairy on the whole disc; front coxæ blackish 



grey, anterior femora more or less blackish at the base \. diaphana. 



— Thoracic disc only with the usual short hairs in front; 

 front coxæ somewhat yellowish at the apex, anterior femora 



yellow 3. magnicornis. 



3. Antennæ longer than the head; subcostal vein short... 9. elongata. 



— Antennæ shorter than, or at most as long as the head ; 

 subcostal vein not short 4. 



4. Hind metatarsus as long as or shorter than the second 

 joint 5. 



— Hind metatarsus longer than the second joint 7. 



5. Hind coxæ more or less yellow at apex; wings with the 

 discai bend nearer the cross-vein than the apex ; squamular 

 fringe yellow; abdomen with yellow side-spots on second, 



or on this and third segment 6. argentina. 



— Hind coxæ quite blackish grey 6. 



6. Abdomen with yellow side-spots at the base; squamular 



fringe black or brown 4. leucocephala. 



— Abdomen (generally) without yellow spots at the base ; 

 squamular fringe paler, pale brownish or yellow; discai 



bend in, or about in the middle between cross-vein and apex 5. argyria. 



7. Coxæ more or less yellow 7. confinis. 



— Coxæ almost quite blackish grey 8. auricolUs. 



The female of A. Loeivii is unknown. 



1. A. diaphana Fabr. 



177.5. Fabr. Syst. Entom. 783. 54, et 1781. Spec. Ins. II, 448,70, et 

 1798. Ent. Syst. Suppl. 564, 126 (Musca). — 1824. Meig. Syst. Beschr. IV, 

 46, l,Tab. XXXV, Fig. 5, c?, et 1830. VI, 362 (Porphgrops) . — 1838. Meig. 

 ibid. VII, 154, 1. — 1843. Zett. Dipt. Scand. II, 587, 76, et 1855. XII, 

 4635, 76 {DolicJiopus). — 1862. Schin. F. A. I, 190. — 1878. Kow. 

 Verhandl. zool. hot. Geseli. Wien, XXVIII, 443, 3, Taf. V, Fig. 1 — 12. — 

 1903. Kat. palåarkt. Dipt. Il, 324. — DolicJiopus pellucens Fall. 1823. Dipt. Suec. 

 Dol. 17,20. — Porphyrops rersicolor Meig. 1824. Syst. Beschr. IV, 50, 9, ?. 



Male. Vertex and frons black; eyes with blackish brown hairs. 

 Epistoma somewhat narrow, velvet black. Palpi somewhat small, black. 

 Occiput grey pruinose; postocular bristles black, downwards sometimes 

 brownish. Antennæ black, longer than the head, third joint somewhat 

 elongated, about as long as the two basal joints; arista about of the length 



