96 
Psyche 
[September 
Female. — Undescribed. 
Length. — 2.50 to 3.00 mm. 
Coll, by W. S. Brooks, Moneague, Jamaica. January. 
The outstanding characteristics of this species are as 
follows: — heavy greenish pruinescence of mesonotum and 
silvery pruinescence of pronotum; brown basal bands of 
abdominal segments three, four, five and six; the blackish 
seventh and eighth abdominal segments with whorls of 
long, black, spine-like hairs; conspicuous yellow coxites of 
the hypopygium. 
Chironomus jamaicensis sp. nov. 
Male — Yellowish green. Head yellow, antennae brown, 
scape brown, palpi yellowish brown. Thorax yellow, 
mesonotum yellow with wide reddish vittae, pleurae yellow- 
ish, scutellum pale greenish yellow, postnotum brown; 
halters pale yellow to white, the apex slightly greenish. 
Abdomen yellow, the first three basal segments often 
greenish, remaining segments including the hypopygium 
pale brown, venter greenish yellow. Legs yellow, mid and 
hind legs sparsely clothed with long brownish hairs, coxae 
yellowish, fore femora dark brown, mid and hind femora 
greenish yellow; fore tibiae brownish, the apices narrowly 
blackened, apical comb absent; mid and hind tibiae yel- 
lowish with conspicuous black apical combs; fore tarsi en- 
tirely brown, metatarsi nearly twice as long as fore tibiae, 
ratio between fore tibia and tarsal segments as follows 40 — 
70, 40, 30, 25, 15; mid and hind tarsi brownish yellow, the 
distal half of second and the entire third, fourth and fifth 
segments blackened. Wings hyaline, veins pale yellow, 
crossvein not infuscated, vein (Ri) joining the costa at a 
point slightly more than half the distance from crossvein 
to tip of vein (R 4+5 ), media and (R 4+ s) equidistant from 
wing apex, cubitus forking distinctly beyond crossvein. 
Hypopygium similar to that of C. decorus. 
Female .- — Agrees with male regarding color. 
Length. — 3.50 to 4.00 mm. 
Coll, by W. S. Brooks, Moneague, Jamaica. February. 
