128 LEFIID2E. 



Described from a small series of males in perfect condition 

 collected by me in undergrowth on hillside at Darkling, 13-18. ix. 

 1913. 



Type in my collection, co-types in the British and Indian 

 Museums. 



Genus CHRYSOPILUS, Macq. 



Chrysopilus, Macquart, Kecueil Soc. Sci. Agric. Lille, p. 403 (1826). 



Chrysopila, Macquart, Suites a Buff. i. p. 429 (1834). 



? Slyrex, Scopoli, Ent. Cam. p. 367 (1763). 



? Heliomyia, Doleschall, Nat. Tijd. Neder. Ind. xiv, p. 402 (1857).* 



Leptis (pt.), auc tores. 



GENOTYPE, Musca diadema, L. ; by designation of Westwood 

 (1840). 



Head with face socketed like a dimple. Palpi porrect or slightly 

 upturned, not drooping. Eyes with upper facets much larger 

 than lower ones,f generally sharply demarcated, and of a different 

 colour ; in life eyes often brilliant golden green. Antenna? much 

 as in Leptis, but 3rd joint onion-shaped, rarely longer than 2nd ; 

 arista apical, long and thin. Thorax " with coarse golden or pale 

 yellow depressed pile or scales, amongst which there may be some 

 longer, thinner, erect hairs "; mesopleurae, metapleurse and sides 

 of metanotum with pubescence. Abdomen shorter than in Leptis; 

 dorsum with a considerable amount of golden pubescence as on the 

 thorax. Leys long and thin ; coxae moderately large ; femora with 

 closely applied small golden or pale yellow scales, most con- 

 spicuous behind the anterior pairs, except at the tip, and in front 

 of the hind pair ; fore tibiae unspurred, middle tibiae with two 

 apical equal-sized spurs, hind tibiae with a single spur ; front tarsi 

 without " touch hairs." Wings rather broader than in Leptis ; 

 venation as in that genus, except that the anal cell is always 

 closed at or a little before the border ; subcostal vein with very 

 small bristles ; alar squamae moderate, a single row of hairs on 

 posterior margin. 



Range. World- wide. 



Life-history. The larvae live in rotten wood or vegetable mould. 

 Beling has described the metamorphoses of several European 

 species, which are similar to those of Leptis. The perfect insects 

 occur in woods, meadows, and shady places. The colours fade 

 somewhat after death and the golden pubescence is especially 

 easily rubbed off. 



* C.fcrruginosus, Wd., a rather widely distributed Oriental species and the 

 only one referred to Heliomyia, is somewhat aberrant in the palpi, and may 

 require removal to a new genus or possibly to Macellopalpus. See my notes 

 under this genus and the further notes herein referred to. 



f In femtginosus the lower facets are barely perceptibly smaller than the 

 upper ones, and by no means clearly demarcated. There is, however, some 

 probability of this species having to be removed to a different genus. 



