Se ee ee ae ee SRE ay 
A NEW GENUS AND SPECIES OF CULICIDA. 
By CHARLES 8. BANKS. 
’ 
(From the entomological section, Biological Laboratory, Bureau of Science.) 
Family CULICIDA. 
Subfamily TOXORY NCHITIN AE. 
Genus WORCESTERIA gen. nov. 
Head with closely applied, wide, flat scales (Pl. I, fig. 1) and a very small 
group of upright, truncated, bastonate scales (PI. 1, fig. 2) having distal extremi- 
ties crenulate, on extreme occiput, near nape; a tuft of six curved bristles project- 
ing over eyes; thorax and abdomen with flat scales; legs and palpi with narrow 
flat scales. Palpi in the 2 short, 5-jointed, fourth and fifth almost microscopic, 
being, together, not as long as width of third joint, and less than 4 as wide as 
preceding joints (PI. I, figs. 3 and 4); in the ¢ 3-jointed, acuminate, reflexed 
before middle, first joint composed of three segments anchylosed and with but 
faint evidence of former segmentation expressed by arrangement of scales (PI. I, 
figs. 5 and 6); proboscis long, tapering and curved as in Toworhynchites and 
Megarhinus ; distal segment bilabiate, prothoracie lobes strongly swollen, eacli 
bearing a laterally projecting, vertical row of curved spines; wing venation as in 
Megarhinus, the first submarginal cell 3 as long and 4 as wide as the second 
posterior, its proximal angle very acute, that of the second posterior being rather 
more rounded, the arrangement of the cross veins differs in the sexes, the super- 
numerary being farther removed from the mid cross vein in the ¢ than in the 9 
and the mid cross vein being also slightly shorter in the ¢; the eyelic vein' very 
prominent and two-parted, equally pronounced in both sexes, its curve, the reverse 
of that in Megarhinus (PI. 1, fig. 7); metanotum longitudinally slightly suleate 
on median line, densely pilose; abdomen bordered laterally with sparse hairs to 
fifth segment, then having dense lateral tufts of variegated hairs; legs of both 
sexes strongly spinose except last two tarsal segments; ungues of 2 simple and 
equal; those of gf unequal, the larger unidentate on fore and mid legs, equal on 
hind legs and very small; male genitalia having the bulbous basal segment 
strongly setose, the distal segment long, very slender, double-curved, the apical 
tooth being placed ventrally before the apex. (PI. T, fig. 8.) 
The type of the genus is W. grata sp. nov., described herewith. 
I take great pleasure in dedicating this new genus in a most interest- 
ing group of insects, to Mr. Dean C. Worcester, to whose personal efforts, 
‘] have adopted this term as a name for the vein which curves upward and 
inward or is reflexed from the end of vein 5 into the anal cell in the Megarhinina 
and Toxorhynchitine. 
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