DIPTERA, 335 
closely approximated at base. Their proboscis projects but very 
little beyond the oral cavity, as in 
Stryemes, Lat—Sryei, Meig. * 
In the others the antennee are distant. 
Here, the head is almost globular; the proboscis is never long ; 
the palpi are always concealed, and the extremity of the wings does 
not exhibit numerous areolze forming a net-work. 
Anrurax, Meigq., 
Or atin properly so called, where the three ocelli are closely 
approximated. 
A. morio; Musea morto; Panz., Faun. Ins. Germ., xxxiii, 18; 
A. semiaira, Meig. Entirely blagl: with russet hairs on the thos 
rax and sides of the abdomen. he wings, from their base to 
a little beyond the half of their length, are black, which colour, 
in terminating, forms four almost equal dentations. It is one 
of the most common species in the environs of Paris +. 
Hirmoneura, Wied., Meigq.. 
Where one of the three ocelli, the anterior, is distant from the two 
others, which are posterior ; the proboscis is concealed. The wings 
exhibits more nervures than those of the preceding subgenus f. 
There, the head is proportionally shorter, almost hemispherical, 
and compressed transversely ; the antennze are very distant; the 
trunk is longer than the head; the palpi ave sometimes exterior, and 
the extremity of the wings frequently exhibits a reticulation analo- 
gous to that of the same organs in the Neuroptera. 
Those, in which they are always reticulated in the usual manner, 
where the proboscis is merely a little longer than the head, and the 
palpi are not apparent, where the first joint of the antennz is cylin- 
drical, somewhat longer than the preceding one, and the last forms 
an elongated cone, compose the subgenus 
Muuo, Lat , Meig.—Cyruerna, Fab. § 
Those in which the summit of the wings is most frequently reti- 
culated, like those ot the Neuroptera. and the proboscis is much lon- 
ger than the head, with the palpi external, in whicn the two first 
joints of the antenne are very short, nearly equal in size, almost 
granose, and the last forming a very short cone, with an abrupt and 
almost setaceous stilet at the extremity, constitute the ‘subgenus 
Nemestrina, Lat. Oliv. Wied., 
Where the tarsi are furnished with three pellets, whilst im the preced- 
ing subgenera there are only two, and frequently but slightly ap- 
parent ||. 
* See Meigen and Macquart. The name of Sfygia had already been appropriated 
to a genus of the Lepidoptera. 
+ This subgenus is designated in the Encye. Méthod., X, 676, by the name of 
Lomatia. 
+ See Meigen. 
§ Lat.. Meig., Fab., Wied. 
|| The Hermoneurz should be excepted, according to a figure of one of the tarsi 
given by Meigen. 
