410 NEW YORK STATE MUSEUM 
fourth at the cross veins. Venation as in figure 9. The basal 
section of R,+, proximad of the R-M cross vein. Halteres pale, 
with a fuscous knob. Nuttall and Shipley state and also show 
in the figure which they give of the wing of maculipennis 
that the subcosta extends almost to the tip of the wing. In all 
specimens of females which I have examined this is not the case 
with the American form. Should this difference be found con- 
stant, Say’s name of quadrimaculatus must be restored. 
Larva. According to the description and figure given by Nutt- 
all and Shipley [1901], it differs from that of punctipennis 
in the following particulars. The six feathered hairs arranged 
on the dorsal surface of the head are placed on a transverse 
band of pigment. On the dorsal surface of the labrum are two 
simple hairs projecting forward; these are more cephalad than 
in punctipennis. The pigment spots arranged symmetri- 
cally about the median Jine, so conspicuous in puncti- 
pennis, are wanting in this species. At the end of the second 
antennal joint is a four branched hair according to the figure 
given by Nuttall, whereas this hair has six branches in puncti- 
pennis. The mandibles show some differences. The only 
differences in the hairy armature of the abdomen which I have 
observed in punctipennis, in comparing with the descrip- 
tion and figure of Nuttall of maculipennis, is the presence 
of one or two more of the long, simple hairs of segments 4 and 
5 in the former species. 
Pupa. Agrees in all particulars with the description given for 
punctipennis. A comparison of fresh specimens of both 
species will be necessary to reveal differences. 
Genus psorRoPHORA Desvoidy 
Large species which resemble Culex in having a straight pro- 
boscis; the male has palpi as long as the proboscis, those of the 
female being short. It differs from Culex in having many nearly 
erect scales on the legs. 
Two species have been described from the United States. 
They may be distinguished by the characters given in the key 
below. 
Length 6mm exclusive of the probocis; cell 2d R much longer 
than the cell M; body black, the humeri yellow, pleura and 
sides of the mesonotum bearing many appressed white scales, 
abdomen on the upper side covered with appressed violet pur- 
ple scales, those on the first segment and a few at the hind 
angles of some of the other segments white. (Hartsville 
SC). Canadian: Mnt., 1901) 0.2508 yn snes o howardii Coquillett 
