1933 ] 
Chironomidse from the Antilles 
97 
This species appears to be closely related to C. decorus 
and C . serus from the standpoint of male hypopygium, but 
differs from these in regard to abdominal markings, the 
absence of any discernible infuscation of the crossvein, and 
also in the fork of the cubitus which is located beyond the 
crossvein. 
Chironomus bulbosa sp. nov. 
Male— Yellow, marked with green. Head greenish yel- 
low, antennse brown, plume whitish at base, scape pale 
brown. Thorax greenish with reddish vittse, scutellum 
green, postnotum yellow, halters white with greenish apices. 
Abdomen greenish yellow, sparsely clothed with short yel- 
low hairs. Legs pale green; fore femora and fore tibise 
light brown, narrowly blackened at apices ; fore metatarsus 
less than one and one-half times length of fore tibia 
(10-13) ; mid and hind femora and tibise greenish yellow, 
densely clothed with long yellowish hairs ; tarsi pale brown, 
the fourth and fifth segments blackened. Wings hyaline, 
greenish at base, veins pale brown, vein (R 4+5 ) and media 
equidistant from wing apex; cubitus forking beyond the 
crossvein. Hypopygium brownish yellow; the coxites and 
inner processes large, curved and leaf -like, forming a con- 
spicuous bulb at tip of abdomen. 
Female . — Differs slightly in coloration, i.e., the head, 
greater portion of thorax, and the abdomen are a deeper 
green. 
Length. — 3.00 to 3.50 mm. 
Coll, by Nathan Banks, Soledad, Cienfuegos, Cuba. Au- 
gust. 
The male of this species may be easily identified by the 
bulbose form of the hypopygium. 
