AQUATIC INSECTS IN NEW YORK STATE 405 
anterior margins serrate, six teeth being present in the lateral 
and 10 in the anterior row. The shape of the head resembles 
that of Mochlonyx, but with the mandibles more prominent; it 
is reddish brown in color and heavily chitinized. No eye spots 
are visible in the specimen. . 
The thorax is provided with about eight tufts of feathered 
hairs on each side, the abdomen with about seven pairs. It is 
possible that several of the more caudad of what is here termed 
thoracic tufts may belong to the first few abdominal segments. 
The anal segment and appendages resemble those of Anopheles. 
The dorsal breathing apparatus [fig.1, 4] shown somewhat fiexed 
Sidewise in figure 1, is star-shaped with four radiating pointed 
lobes, between the anterior pair of which open the two spiracles 
[fig.4s|]. At the apex of each of the posterior pair is a single 
Stout bristle. Between the spiracles is a pair of crescent- 
shaped chitinized brown patches, laterad of which is a pair of 
small bristles, and another pair is cephalad. The anal segment 
is ellipsoidal with a row of 31 tufts of hairs, each tuft composed 
of several hairs; at the caudal end are four (or six) very smali 
blood gills, besides a single large tuft of hairs. 
Pupa [fig.8|]. This resembles that of Culex and Anopheles. 
The coloring is like that described for the adult. The breathing 
trumpets are somewhat less flaring at the top than Anopheles, 
but more so than is usual with Culex. On the posterior margin 
of the first segment of the abdomen are three feathered hairs on 
each side; 2, 3, 4, and 5 each have two feathered hairs on each 
side plus some scattered hairs; 6, 7 and 8 each have three or 
four simple hairs on each side. The swimming paddles [fig.7] 
have a single median rib ending in a short, stout spine. 
The venation of the adult wing clearly locates this genus with 
the Culicidae; the form of the proboscis proves its relationship 
with Corethra and Mochlonyx, forming with these the subfamily 
Corethrinae. 
Subfamily CULICINAE 
This subfamily is characterized by the ‘possession of the 
typical long proboscis, which is longer than the head and thorax 
taken together. 
Genus ANOPHELES Meigen 
Pl, 42, tig. 1-7, 9-11 
Moderate sized species resembling the ordinary mosquito. 
Head rounded, occiput prominent; proboscis bristlelike and pro- 
jecting forward, longer than the antennae; the palpi in both 
sexes as long as the proboscis, four jointed, the two end joints 
