THE MOSQUITOES OF THE SOUTHEASTERN STATES 61 
ORTHOPODOMYIA SIGNIFERA (Cog.) 
Orthopodomyia signifera 1s a medium-sized mottled black and 
white mosquito, which superficially resembles the yellow-fever mos- 
quito. The mesonotum (fig. 12, 7) has six or eight delicate longi- 
tudinal lines of white scales, all of which are nearly straight. The 
larvae breed in water in tree holes and rain barrels and are preyed 
upon by Megarhinus larvae. Thibault (742), in Arkansas, reported 
it as being abundant near the breeding places and as entering dwell- 
ings to bite, an observation that the writers have not been able to 
confirm. The species has been collected in all the Southern States. 
Dyar (50, 51) gives the range of the species as the Southern States 
and the Eastern States from Texas to Massachusetts. 
ORTHOPODOMYIA ALBA Baker 
Orthopodomyia alba was described in 1936 from specimens col- 
lected in tree holes near Ithaca, N. Y., where they were found asso- 
ciated with the larvae of O. signifera. Adults of the two species were 
said to be similar in appearance, but the larvae differed considerably, 
particularly in the absence of sclerotic plates on the abdomen in 
O. alba and in other characters as shown in the key. The species 
was first recorded for the South by Shields and Miles (138), who 
obtained it from a tree hole in Colbert County, Ala., and the writers 
have examined a few larvae and reared adults from this series. With 
a few minor exceptions, the larval characters agree with those given 
in Baker’s description. 
Genus DeErnNocerR'TES Theobald 
The mosquitoes of this genus breed exclusively in holes made by 
certain species of crabs, and the adults rest in the upper part of the 
crab holes. It is said that they will bite humans on occasion, but 
they are rarely encountered and are of little or no economic impor- 
tance. Only one species occurs in Florida. The antennae are ex- 
tremely long, and the sides of the thorax have a shingled appearance. 
The palpi are short, and the antennae are similar in both sexes. 
DEINOCERITES CANCER Theob. 
(Crab-hole mosquito) 
The crab-hole mosquito breeds in holes made by land crabs in the 
marl soil of the coastal marshes of southern Florida. The larvae of 
Aedes taeniorhynchus and occasionally Psorophora columbiae have 
been found associated with those of Deinocerites cancer when the sur- 
face water left on the marshes by rain or high tides had drained 
away. The adults are seldom seen, but have been taken in lght 
traps at Miami and in several other localities as far north as New 
Smyrna (latitude about 29°). They have been taken occasionally, 
while ‘biting at night in Dade County, Fla., by the writers and by 
F. H. Stutz. 
Genus WyeomyiA Theobald 
The species of this genus breed in water that collects in such plants 
as the bromeliads (air plants). The eggs are laid singly on the leaf 
