DIPTKRA, 363 



tinguish those whose epistoma does not project in the manner of a 

 rostrum, and the sides of whose head are not prolonged in the forn^ 

 of horns. 



In some, the seta of the antennae is simple or without any very 

 apparent hairs. 



In one single subgenus, 



EcHiNOMYiA, Dum. — Tachina, Fab., Meig., 

 The second joint of the antennEc is the longest of all. The last or 

 the palette is widest, compressed, almost in the form of a reversed 

 triangle or trapezoidal. The seta is biarticulated inferiorly. 



E. grossa; Musca grossa,h.; De Geer, Insect., VI, 1, 12. 

 The largest species known, and almost of the size of a Bombus ; 

 black, bristled with thick hairs; head yellow; eyes brown; 

 origin of the wings russet. It hums loudly while on the wing, 

 alights on flowers, in the woods, and frequently on cow-dung. 



The larva lives in the latter substance; its body is yellowish, 

 glossy and conical, fiirnislicd with a single hook and two small 

 fleshy horns at its anterior extremity or the point; the opposite 

 end is terminated by a circular plane on which are two stigmata, 

 each formed of a lenticular and brown plate raised in the middle. 

 The second annulus of the body, the head counted as one, also 

 presents a stigma on each side. The posterior extremity of the 

 cocoon of the pupa, which is also conical, presents two more 

 distinct stigmata; its contour is formed by a nine-sided lamina. 

 See Reaum., Insect., IV, xii. 11, 12; and XXVI, 6— 10*. 

 In the other Creophilae, the third joint of the antennae is longer 

 than the preceding one, or at least is never shorter. 



Sometimes the anterior face of the head is almost smooth, or pre- 

 sents but very short hairs, arranged as usual in two longitudinal 

 rows, none of which are much larger than the others. 



Here the abdomen is always convex, with very distinct, and more 

 or less triangular annuli. 



In these, the seta of the antennae, of which the second joint is much 

 elongated, is geniculate, and forms an angle near its middle, at the 

 junction of that joint with the following one, or the last division of 

 the seta. 



GoNiA, 31eig\. 

 In those, as in the other Creojihilae, the seta of the antennae is not 

 geniculate near its middle. 



MiLTOGRAMMA, Mctg., 



Where the third joint of the antennae is much longer than the pre- 

 ceding one|. 



* Division A of the genus Tachina, Meig. The species called ferox has its palpi 

 dilated in the form of a spatula, and constitutes the genus Fabricia of M. Robineau. 

 The Stomoxys bombUans, Fab., has the facies of the Echinomyise, and the proboscis of 

 the Buceutes. 



f Meigen. 



I Idem. 



a w •) 



