DIPTERA. , 257 
LEPTIs. 
Which is divided into several subgenera. 
AruErRIx, Meig. Fab. 
Where the first joint of the antenna, larger than the second, is 
thick at least in one of the sexes, and the third is lenticular and 
transversal. 
The palpi project(1). 
Lepris, Fab. Meig.—olim Rhagio, Fab. 
Where the last joint of the antennz is almost globular or ovoid, 
always terminated in a point, and never transversal. 
In some, the antennz are shorter than the head, and their three 
joints are nearly of equal length. 
Here, the palpi project. 
Such are the Zeptis, Macq., where the third joint of the antennz ° 
is ovoid or pyriform. 
L. scolopacea; Musca scolopacea, L.; Némotéle becasse, De 
Geer, Insect., VI, ix, 6. Thorax black; abdomen fulvous, with 
a range of black spots on the back; legs yellow; wings macu- 
lated with brown. Very common in woods. 
There, the palpi are raised vertically, forming the Chrysophilus of 
that naturalist, and united to A@therix by Fabricius. 
In the others, the antennz are as long as the head, the first joint 
elongated and cylindrical, the second short, and the third conical; 
the palpi are turned up. The posterior thicker than in the preced- 
ing subgenera. The abdomen is linear. 
LI. vermileo; Musca vermileo, L.; Nemoteéle ver-lion, De Geer, 
Ibid.,x. Resembling a Tipulas yellow; four black streaks on 
the thorax; the abdomen elongated, with five ranges of black 
spots; wings immaculate. 
The larva is almost cylindrical; its anterior portion is much 
the smallest, and there are four mandibles on the opposite extre- 
mity. It resembles a stick-like geometra (caterpillar), and is 
equally rigid when withdrawn from its domicil. It bends its 
(1) See the works just quoted. 
VoL. IV.—2 H 
