THE MOSQUITOES OF THE SOUTHEASTERN STATES 53 
AEDES CINEREUS Meig. 
(Syn., A. fuscus O. S., ete.) 
This is a comparatively rare northern species that has been recorded 
from Arkansas, where it was said to be abundant but a nonbiter 
(142). Dupree’s identification ,of Aedes fuscus from Baton Rouge, 
La., may have been correct, although the species was not taken by the 
present writers at Mound or New Orleans. Specimens identified as 
_fuscus by Beyer (13) and others in New Orleans were undoubtedly 
— Oranotaenia lowi. A peculiar character of this species is that both 
the male and the female have short palpi. 
AEDES NIGROMACULIS (Lud.) 
Aedes nigromaculis belongs to the arid western regions. It was re- 
ported from Louisiana by Dyar (5/), but the identification was be- 
lieved by Alan Stone, after examination of the original specimen, to 
be incorrect. 
_AEDES DORSALIS (Meig.) 
Aedes dorsalis was reported from Delta, La., by Howard, Dyar, 
and Knab (S45), but the record is questionable, as the collection date 
was 1904 and the species has not been reported since from that locality. 
The specimen has now been lost. Beyer’s identification (75) of the 
species from Lake Charles, La., needs confirmation. This species is 
abundant and widely distributed in the Western and Northwestern 
States, and is said to breed in either salt or fresh water. 
Genus PsoropHora Robineau-Desvoidy 
(Syn., Janthinosoma L.-Arr., Grabhamia Theob. ) 
To this genus belong some of our larger and showier mosquitoes. 
Most of them are severe biters, but at the present time none are known 
to carry disease, although one species (Psorophora columbiae) appears 
in such swarms in southern Florida as to cause the death of livestock 
by its mass attacks. The breeding habits of the group are similar to 
those of the typical Aedes, to which they are closely related. The 
egos are adapted to withstand drying and may lie dormant on the 
ground for long periods. They hatch upon being flooded, and the 
larvae may complete their development in transient pools, as they 
develop very rapidly. The larvae of two of the species (subgenus 
Psorophora) are predacious upon other mosquito larvae and are there- 
fore of some benefit to mankind. The females of these two species, 
the familiar gallinippers, offset the benefit to some extent, however, 
as they are themselves avid bloodsuckers. 
The species of this genus are divided into three subgenera as fol- 
lows: (Psorophora) ciliata and howardii; (Grabhamia) columbiae, 
discolor, pygmaea, and signipennis, (Janthinosoma) ferox, varipes, 
cyanescens, and horrida. 
