346 INSECTA. 
brown, and the abdomen maculated with the same colour. It 
is very rare in the environs of Paris, but common in the depart- 
ment of Calvados. Itis the Mouche armée odorante (Strat. 
olens) of the Tableau Elémentaire de |’Histoire Naturelle des 
Animaux. It diffuses a strong odour of Melliot sometimes even 
after death *. 
Bers, Lat., Meiq.,” 
Where the antenne are a little longer than the head, with their 
two first joints of equal length, and the third forming an elongated 
cone. The scutellum exhibits from four to six spines f. 
CypuomyiA, Wied., 
Where the antenne are still more elongated, with the third joint 
longer than the second; the third is linear and compressed. The 
scutellum has two spines f. 
Those have antennz which throw out on each side, near the mid- 
dle, three or four linear, hairy threads, the superior ones silky ; they 
are almost setaceous near the extremity. The scutellum has four 
teeth. 
Prinopacty.ius, Wied. 
They have the general appearance of a Beris and a Cyphomyia §. 
In the third section—Stratiomydes, Lat.—we also find antenne 
consisting of three joints, the last of which, exclusive of the stilet or 
seta, presents at most five or six rings. This stilet, or that seta, exists 
in almost all of them, and in those where they are wanting, the third 
joint is elongated and fusiform, and always divided into five or six 
rings. The wings are always incumbent one on the other, In seve- 
ral of those species where the antennze terminate in a somewhat oval 
and globular club, and always furnished with a stilet or a seta, the 
scutellum is not spinous. 
This section comprises the genus 
Srratiomys, Geoff. 
In some, the third joint of the antennz is elongated, fusiform or 
conical, without a seta at the end, and almost always terminated by 
a biarticulated stilet. The scutellum, in most of them, is armed with 
two spines or teeth. 
Here the proboscis is very short. The anterior portion of the head 
does not project in the manner of a rostrum, receiving that organ 
* See Lat., Fab., Meig., and Macq. 
+ See the same authors. 
t Wied., Anal. Entom., 13, fig. 4. } 
The genus Platyna of this naturalist, established and figured in the same work, is 
wholly unknown to me. The Insect, on which he has formed it, has the port of a 
Beris and a Cyphomyia. The antenne are equally long and filiform, with the two 
first joints elongated and cylindrical, and the last, judging from his figure of one of 
those organs, without rings. The scutellum has but one spine. ; 
§ Stratiomys quadridentata, Fab. 
