DIPTEEA. 349 



EUTARSUS. 



Eutarsus, Loew, Neue Beitr. v. p. 45 (1857). 



1. Eutarsus loewi, sp. n. 



c? . Face long, very narrow, covered with white duBt ; palpi and proboscis small, yellow ; antennae yellow, 

 towards the tip slightly infuscated, all the joints small, first bare above, arista subapical ; front short, 

 covered with white dust ; cilia of inferior orbit much folded-in (in the described specimen), but apparently 

 yeUowish-brown in colour. Thorax short, round when seen from above, bright green in the middle and 

 posterior part, including the scutellum; fore part brown, as also a narrow portion above the wing; 

 pleurse, metanotum, and under-edge of the scutellum yellowish-brown. Halteres yellow, the knob 

 infuscated ; teguhe yellow, their cilia black. Abdomen dark brown, towards the tip blackish, without 

 metallic lustre ; first three segments with a paler yellow band across each ; venter yellow-brown behind; 

 hypopygium small, sessile, the visible organs minute, brownish. Legs, including the coxae, yellow the 

 hind tibi* slightly infuscated throughout, the hind tarsi blackened, the metatarsi shortened ; fore pulvilli 

 enlarged. Wings pale brownish-yellow ; first vein long, third and fourth veins parallel and rather distant 

 in the last part of their course. 



Length 3*3 millim. 



Hab. Mexico, Teapa in Tabasco (H. H Smith). 

 One male. 



THRYPTICUS. 



Thripticus, Gerstaecker, Stett. ent. Zeit. 1866, p. 43. 

 Aphantotimus, Wheeler, Psyche, 1890, p. 375. 

 Xanthotricha, Aldrich, Trans. Ent. Soc. Lond. 1896, p. 339. 



1. Thrypticus fraterculus. 



Aphantotimus fraterculus, Wheeler, Psyche, 1890, p. 376 l . 



Hab. Noeth Ameeica, Wisconsin ^—Mexico, Mexico city (H. H. Smith). 



One male and one female. 



2. Thrypticus cupuliferus. 



Xanthotricha cupulifera, Aldrich, Trans. Ent. Soc. Lond. 1896, p. 339, t. 11. figg. 106, 106 a \ 

 Hab. Mexico, Orizaba (H. H. Smith).— Antilles, St. Vincent K 



A single female. 



3. Thrypticus pusillus, sp. n. 



Face wide, violet in colour, without dust ; front similarly coloured ; antennae blackish or dark brown, very 

 short the long terminal arista pubescent, brown ; cilia of the inferior orbit pale ; palpi yellowish. 

 Dorsum of the thorax purple, the sides bright green, the posterior part green above, concave ; bristles 

 brownish-yellow. Halteres light yellow ; tegulse of the same colour, with pale yellow cilia. Abdomen 

 brownish-green, not very bright, with numerous closely placed brown hairs ; hypopygium dark brown, of 

 moderate length, large in the middle and rather pointed, the lamellae large, pointed, pale yellow ; out of 

 the inner and upper (morphologically ventral) part of the hypopygium arise a pair of yellow lance-like 

 organs curved at the base, and reaching about as far as the tips of the lamellae. Legs, including the 



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