552 MODERN CLASSIFICATION OF INSECTS. 
Naturg. tab. 4. fig. 11—15. larva and pupa of Leptis scolopacea); the 
pupa (fig. 130. 6.) is naked, incomplete, cylindrical, with trausverse 
rows of spines on the abdominal segments, and with larger spines at 
the extremity of the body; the larva (fig. 130. 7.) of one of the 
species of this family (Vermileo De Geerii Macquart, Leptis Ver- 
mileo Fab.), has the singular habit of forming small conical holes in 
the sand, like the ant lion, for the purpose of entrapping small insects, 
round which it entwines itself, and then destroys and sucks them. 
It twists itself about with the greatest activity. The larva of this species 
is elongate, cylindric, attenuated in front, with a small soft head of 
variable form, furnished with two hooks; the last segment of the body 
is broad, curved upwards, and terminated by four pilose tentacles 
(fig. 130.8.). This larva, which has been fully described by De Geer 
(Mém. tom. vi. pl. 10.), is three years in attaining the perfect state ; 
the pupa is naked, incomplete, and only covered by the sand; M. 
De Romand, who has also published a few observations upon this 
interesting insect (Annal. Soc. Ent. de France, 1833, p. 498.), 
noticed that the larva was able to undergo a fast of six months. 
The European genus Clinocera of Meigen appears, from the ar- 
rangement of the wing-nerves, to form the passage to the next family. 

The family DoLicnopip®* comprises a considerable number of 
small brilliant metallic-coloured flies (fig. 130.9. Dolichopus cya- 
neus), having the wings when at rest incumbent upon the abdomen, 
seldom with more than one perfect cell, the disposition of the nerves 
nearly resembling that of the Muscide; the antenne (fig. 130. 11. 
ant. of Dolichopus) are short, terminating in a small palette-shaped 
or oval joint, emitting a long seta; the palpi are very broad and flat- 
tened; the labrum horny and dentate, serving as a defence to the la- 
bium which is very large and fleshy, especially in the females, in which 

* Bisrriocr. Rerer. to THE DotricHorirps. 
Cuvier, in Journ. d’Hist. Nat. vol. i. 
Fischer. Notice sur une Mouche carnivore (Medeterus), 4to. Mose. 1819. 
Stannius, in the Isis, 1831. 
Haliday, in Zool. Journ. No. 19. ; and in Entomol, Mag. passim. 
