CULEX CORNIGER 243 



central projection Into the disk; a square patch of same color behind, and on scu- 

 tellum; pleurae whitish, marked, with black above, centrally and on the bases of the 

 legs. Abdomen black with central basal white spots on the first four segments, pale 

 terminal hairs on all the segments ; venter with short, broad white basal segmentary 

 bands. Legs black, femora pale beneath, tips of femora and tibiae white, tips and 

 bases of the tarsal joints very narrowly white. Wings with narrow scales. 



The larvae fall in the table with janitor and lactator (Journ. N. Y. Ent. Soc, xiv, 

 205, 1906), but differs in having the ring of the anal segment broad; pecten of eight 

 spines reaching to middle of the air tube; one tuft within the pecten, three beyond it, 

 not in line, two tufts on the dorsal aspect of the tube, all the tufts 2-haired only, 

 thick and coarse. 



Five specimens, bred by Mr. Urich from larvae in a tub near the kitchen at Arima, 

 Trinidad. 



Type.— Ceit. No. 10,021, U. S. Nat. Mus. 



Original Description of Teichopronomtia micboanntilata : 



Head brown, pale scaled; proboscis with pale band. Thorax deep fawn-coloured 

 with bright brown scales, two median bare paler lines which converge posteriorly, 

 a curved one on each side, in front of wings. Abdomen deep brown with basal yellow 

 spots to the segments. Front and mid legs brown, unhanded, hind with faint banding 

 involving both sides of joints. 



£?. Head brown with narrow-curved pale scales, pale upright forked scales in the 

 middle, dark at the sides, flat creamy-white lateral scales, a line of small ones spread 

 partly around the eye borders; proboscis deep brown, enlarged on the apical half, 

 a narrow pale band on the apical half, below which are longish hairs on each side 

 decreasing in size to the base. Palpi brown, deep blackish apically, acuminate, the 

 apical segment longer than the penultimate, hair-tufts on the last two and apex of the 

 ante-penultimate black; the dark apical portion shows deep violet reflections. 



Thorax brown, adorned with scanty narrow-curved bright golden-brown scales, 

 the denuded surface shows darker and paler lines, a paler curved one on each side in 

 front of the roots of the wings, two median darker ones which converge posteriorly 

 (the effect being quite different under the microscope to under a hand-lens), chaetae 

 over the roots of the wings brown; the scales are paler in front of the scutellum, 

 which is also clothed with narrow-curved pale scales and with eight posterior border- 

 bristles to the mid lobe; metanotum bright brown; pleuras pale silvery grey. 



Abdomen shiny black, clothed with deep brown scales with dull violet black re- 

 flections, each segment with a basal median creamy-yellow spot, basal segment all 

 dark and the last two with almost complete basal bands, hairs brown. Genitalia with 

 large claspers very broad at the base becoming finer apically with a lateral apical 

 expanding segment; lateral process of basal lobe with three large spines, the two 

 largest with fine bent tips, the third acuminate, a leaf-like plate and then a smaller 

 spine. 



Legs deep brown; the hind pair with apex of tibise, first, second and third tarsals 

 very narrowly pale banded, the pale scales to some extent involving both sides of the 

 joints, traces of this banding seen in fore legs and still less on the mid; fore and mid 

 ungues unequal, both uniserrate, the smaller with a tooth close to base; hind equal 

 and simple. 



Wings with rather dense moderately large lateral scales, especially on the 

 branches of first fork-cell; first fork-cell longer and narrower than the second pos- 

 terior cell, its base a little nearer the base of the wing, its stem about one-third the 

 length of the cell; stem of the second posterior nearly two-thirds the length of the 

 cell; supernumerary and mid-cross veins united, both bending in towards the base of 

 the wing, the posterior cross-vein about twice as long as the mid about one and a 

 half times its own length distant from it; halteres with dusky pallid stem, the knob 

 dark inside. 



Length. — 6 mm. 



Habitat. — Stanley Town, New Amsterdam (Dr. Rowland). 



Time of capture. — July. 



Observations. — Described from a single perfect male. 



It is somewhat obscure, but the hairy banded proboscis will at once separate it 

 from the species of Gulex which it resembles and places it in the genus Tricho- 

 pronomyia. 



It differs from T. annulata in not having a banded abdomen. 



ObIGINAI, DeSCBIPTION of CtJLEX LOQtJACTJLUS : 



In this form the pale markings are all reduced, the tarsal rings smaller than in 

 normal lactator and of a brownish shade; the proboscis instead of being ringed is 

 white-marked on the under side. 



