Genus Janthinosoma. 
121 
J 
Janthinosoma varipes. Coquillett (1904). 
Conchyliastes varipes . Coquillett (1904). 
Janthinosoma johnstonii. Grabham (1905). 
Canad. Ent. XXXVI., p. 10 (1904), Coquillett; Mono. Culicid. IV., 154 
(1907), Theobald. 
Mexico ; Mississippi; U.S.A. 
Type in the National Museum, Washington. 
Janthinosoma albigenu. Lutz (in Peryassu) (1908). 
Os Culicideos do Brazil, 155 (1908), Peryassu. 
Sao Paulo, Brazil. 
Note .—This new species has the prothorax and thorax with 
two wide golden bands, and the hind feet with four bands.* 
Janthinosoma echinata. Grabham (1906). 
Canad. Ent. XXXVIII., 811 (1906). 
“ $ . Head covered with flat spindle-shaped scales, mingled with 
black hairs, a few long yellow hairs projecting between the eyes, many 
upright forked scales at the back. Eyes with deep purple reflections, 
bordered posteriorly with silver white scales. Antennae brown, basal 
segment deep brown, two slightly inflated, with a few short black 
hairs. Proboscis black, with violet reflections, speckled with yellow 
scales. Palpi densely covered with black and yellow scales, the latter 
predominating in the two basal joints. Clypeus black. Prothoracic 
lobes with a few golden scales and black hairs. 
Mesonotum black, with spindle-shaped golden scales scattered over 
its surface, two denser clusters of these scales on the front margin 
adjoin the prothoracic lobes, also at the posterior margin between the 
lateral and mid bare spaces. Two narrow median bare lines running 
over three-quarters of the length of the mesonotum, broadening as 
they approach its anterior margin; a median and two lateral bare 
areas at the posterior margin. A row of long black hairs above the 
wing insertions; a number of short black hairs distributed in no 
definite order over the mesothorax. Scutellum black, clusters of 
golden scales on the mid and lateral lobes ; six to eight black hairs 
spring from the posterior margin of the mid lobe and three to four 
from each of the lateral lobes. Pleura with patches of silvery white 
* Dyar and Knab propose the name Janthinosoma indoctum, n. sp., for 
the larvae known as Janthinosoma scolasticus, Theobald. This species is a 
typical Culex, and was placed by these gentlemen as Janthinosoma on 
larval characters. They now say scolasHcus, Theob., is a Culex, and propose 
a new name for their larvae ! 
