PSOROPHORA PYGM^A 601 



almost linear; length, 3 mm. Four specimens collected at Key "West, Florida, in 

 August, 1901, by Mr. August Busck, and six by Mr. E. A. Schwarz, April 1 to 3, 1903. 

 Type. No. 6893, U. S. National Museum. 



Original Description of T^eniorhynchus AxxiGUiE: 



$. Head dark grounded, with straw-coloured, curved and erect forked scales on 

 occiput and nape, and the lateral flat-scaled areas brindled black and yellow; palpi 

 almost entirely dark scaled. Pleurae not spotted. Legs and proboscis more or less 

 brindled throughout. Venter black, with narrow snowy apical bands. Of medium 

 size. 



Habitat. Antigua. 



Somewhat resembles my Twniorhynchus ager, but the abdominal banding is quite 

 different. The proboscis wants the yellow tip, and its middle band is much broader. 

 The subapical bands on the thighs are also very characteristic. 



The following is an abstract of table : 



I. Species whose proboscides exhibit a paler band. 



B. With the wings brindled but not actually spotted, 

 b. With the abdomen apically pale banded, 

 i. With the tarsi basally pale banded. 



6. T. Antigua:, Giles. Wing brindled throughout with about 

 equally distributed black and pale yellow scales, the latter 

 almost forming spots on some inner veins. Inner rank 

 fringe scales alternately light and dark. Band on proboscis 

 broad yellow, not sharply defined, placed in middle. Ab- 

 dominal segments dark, with conspicuous triangular apical 

 snowy bands, and occasionally some lateral spots in front. 

 All tarsal joints except last two of fore and mid pairs with 

 narrow yellow basal bands. Thorax dark, with golden- 

 brown curved scales. A sombre species, with snowy apical 

 bands on the dark venter and a pale subapical band to all 

 the femora. 



Description of Female, Male, and Larva of Psorophora pygm^^sa: 



Female. Proboscis moderately long and slender, uniform, labellse conically 

 tapered ; vestiture of black scales, a broad ring of white ones at middle, its edges 

 ill defined, tip of la])ell9e grey ; setse small, black, curved, those on labellse more 

 prominently outstanding. Palpi short, stout, nearly one-fourth as long as pro- 

 boscis, black scaled, the tips and a few scattered scales white ; setae rather long, 

 black. Antennae rather short and stout ; joints subequal, rugose, pilose, blackish, 

 paler proximally ; second joint a little longer than the others ; tori subspherical, 

 blackish, with a cup-shaped apical excavation and many narrow, curved silvery 

 white scales on inner side ; hairs of whorls short, sparse, black. Clypeus ellipti- 

 cal, convex, blackish, nude. Eyes black. Occiput narrow, convex, blackish, 

 clothed with narrow, curved, yellowish silvery scales which about half cover the 

 surface and many narrow, erect, forked black ones ; at the sides a patch of small, 

 flat, broad black scales at eye-margin, surrounded and followed by flat, broad 

 white scales ; eyes bordered by a row of curved black bristles. 



Prothoracic lobes moderate, elliptical, remote dorsally, clothed with narrow 

 curved yellowish silvery scales and black bristles. Mesonotum blackish, two bare 

 spots on anterior margin, a subdorsal and a sublateral row of black bristles ; ves- 

 titure of dense, narrow, curved pale golden and golden-brown scales, the pale 

 ones predominating, nearly silvery on lateral parts of disk; antescutellar bare 

 spot small, surrounded by silvery scales; bristles black, numerous at roots of 

 wings. Scutellum trilobate, brown, clothed with narrow, curved, pale-golden 

 scales and each lobe with about eight black bristles. Postnotum elliptical, 

 prominent, dark brown with a slight whitish pruinosity, nude. Pleurae and coxae 

 brown, clothed with narrow, elliptical, flat white scales and with rows of brown- 

 ish bristles. 



Abdomen subcylindrical, flattened, tapering posteriorly, cerci prominently 

 exserted; dorsal vestiture of black scales mixed with a few whitish ones, the 

 39 



