60 MISC. PUBLICATION 336, U. S DEPT. OF AGRICULTURE 
URANOTAENIA LOWII Theob. 
(Syn., U. continentalis D. and K.) 
The larvae of this species occur in ground pools, chiefly the grassy 
margins of lakes. The adults are rarely seen and are not known to 
bite humans. The species has been recorded from Florida and Louisi- 
ana (50, 85), and there are recent records from Charleston, 8. C. (56), 
Arkansas, Georgia, Alabama, and Mississippi (table 1). In south- 
ern Florida it appears to be the predominant one of the two species. 
The last two segments of the hind tarsi are white, and the sides of the 
thorax have a few pale purplish scales. 
Genus MEGARHINUS Robineau-Desvoidy 
The mosquitoes of this genus are very large and brilliantly colored. 
The long, tapered proboscis is bent downward (fig. 2, 4) at nearly a 
right angle and is not fitted for puncturing, the adults probably 
subsisting entirely on nectar, as they have been observed feeding in 
flowers. The eggs are laid singly on the surface of the water. The 
larvae breed in water in tree holes and occasionally in artificial re- 
ceptacles. They are predacious on other mosquito larvae, principally 
Orthopodomyia signifera and Aedes triseriatus, as well as being 
cannibalistic, but owing to their rarity and their restricted habitat 
they cannot be of much benefit in controlling economic species. 
Two closely related species are found in the United States dis- 
tinguishable only by tarsal markings in the male. 
MEGARHINUS SEPTENTRIONALIS D. and K. 
(Syn., M. portoricensis How. (not Von Réder), M. herrickii Theob.) 
The larvae of this large mosquito are found principally in water in 
tree holes, and occasionally in rock holes and artificial water recep- 
tacles, where they feed on other mosquito larvae. Several male speci- 
mens in the writers’ collections from Mound, La., and Bay Saint 
Louis, Miss., all have the dark fore tarsi of this form. The species 
has been recorded from all the Southeastern States except Florida. 
MEGARHINUS RUTILUS Cog. 
This species also breeds in tree holes, but it is very rare and almost 
nothing is known of its habits. It is distinguished from septentri- 
onalis by minor characters of the males. It has been recorded from 
Florida and Georgia (85). Two males at hand from Savannah, Ga., 
(D. G. Hall, collector) and several males from Orlando, Fla., show 
the pale tarsal markings of this form. Single records from Alabama 
and Mississippi are very questionable, since the identifications were 
made from female specimens and Dyar afterwards (57) listed the 
species only from Florida. 
Genus OrtHopopomyiA Theobald 
(Syn., Bancroftia Lutz) 
The mosquitoes of this genus breed in water in tree holes and oc- 
casionally in artificial water containers. The eggs are laid singly 
at the water’s edge and hatch in 2 to 3 days. Two species are found 
in the Southern States. 
