330 CLASS VIII. 



Comp. MEIGEN, System. Be&chr. der eur. zweifl. Ins. n. p. 113, Tab. 16, figs. 

 T 4. 



Leptis FABR. Antennae porrect, with third joint setiferous. 

 Palps exsert. Wings divaricate. Tarsi furnished with three pul- 

 villi. Abdomen conical, elongate. 



Sp. Leptis scolopacea, Musca scolopacea L., SCHELLENB. Tab. 31, Fig. r, 

 DUMER. Cons, gen, s. I. Ins. PL 48, figs, i, &c. The larva (BoucHE 1. 1. 

 p. 44, Tab. IV. fig. i) lives under ground, and is long and conical. That 

 of another species from France and the South of Europe, Leptis vermileo, 

 Musca vermileo L., SCHELLENB., 1. 1. fig. -2, digs, like the larva of the Lion- 

 ant, funnel-shaped pits in the sand to catch the insects that fall in. See 

 REAUMUR M$m. de I'Acad. royale des Sc. de Paris, 1753, fig. 402, PL i ; 

 DE GEER Ins. vi. pp. 168 183, PI. x ; EOMAND Ann. de la Soc. Entomol. 

 ii. 1833, pp.498, 499, PI. 180. 



Sub-genera; Atherix MEIG., Psiolina ST^EG., ZETTERST. 



Thereva LATR., MEIG. (Bibio FABR.) Palps sheltered in the 

 cavity of the mouth. Antennae porrect, of the length of the head, 

 with third joint subulate or oblongo-conical, with a small biarticu- 

 late terminal style. Wings divaricate. Abdomen conical, tomentose. 



Sp. TJiereva plebeia L., DUMER. Consid. gen. s. L Ins. PI. 48, fig. 2 ; Ther. 

 anilis, Musca anilis L., PANZER Deutschl. Ins. Heft 5, Nos. 23, &c. 



Philocephala ZETTERST. 



Mydas FABR. (Midas WIEDEM.) Antennae longer than head, 

 quinquearticulate, clavate. Wings incumbent. (Ocellus single, at 

 least in some, frontal, transverse, situated between two exsert 

 rugae.) 



Sp. Midas filata FABR., DUMER. Cons. gin. s. I. Ins. PL 48, fig. 8 ; Midas 

 giganteus WIEDEM., Cuv. R. Ani. 3d. ill. Ins. PI. 172, fig. 2, both from 

 South America. The species, with the exception of a few from Portugal, 

 are all exotic and very large. 



Comp. WIEDEMANN, Nov. Act. Acad. C&s. Leop. Carol, xv. 2, pp. 19 

 56, Tab. n. iv, 1831, WESTWOOD Arcana entomologica, i. 1841, p. 49, 

 PL 13, 14. Respecting the place of this genus in the natural arrangement 

 there are different opinions. According to the observations of HARRIS, 

 the larva and pupa agree with those of Asilus. 



Note. Genus Cephalocera LATR., related to Mydas, differs from 

 the other genera of the family by a long, porrect, slender proboscis, 

 yet it ought not to be severed from Mydas. 



