Dolichoitodidx, of St. Vincent (West Indies). 323 



almost the same size. Middle tibiae on the outer front edge with 

 two bristles besides the one at the tip ; hind tibias slender, with a 

 few small bristles behind. Wings rather narrow, subhyaline, with 

 yellow veins. The anterior end of the large cross-vein is in the 

 centre of the wing. Length 2 mm.; of wing, 1"8 mm. 



Five males. May. This species belongs to the group 

 of D. lioffmanseggii, Meig., of Europe, and D. satrapa, 

 Wheeler, of Nebraska, but is readily distinguished by 

 the characters given. 



5. Diaphonis contigiius, n. sp. 



Brownish, opaque species, or sometimes slightly shining ; 

 femora black, tibise yellow ; cilia of inferior orbit and of 

 tegulge blackish ; eyes of male broadly contiguous. 



(^. Face opaque, blackish, short ; palpi brown ; antennae very 

 short arista sub-apical ; ocellar tubercle prominent ; cilia of in- 

 ferior orbit almost black, yet in certain lights rather brownish. 

 Dorsum of thorax opaque-brown, the ground colour being blackish 

 and the thick dust light-brown. Pleural black with thinner and 

 greyer dust ; halteres and tegula3 yellow, the latter with black cilia. 

 Abdomen opaque-black with black hairs ; the apical bristles large ; 

 appendages of the hypopygium not or scarcely visible. Coxae and 

 femora black, the latter with yellowish tips. Front femora along 

 the lower and outer edge with a row of long hairs ; middle and 

 hind femora with a few rather long hairs near the tip on the fore 

 side ; tibiae yellow, with only few and weak bristles, except at tip. 

 Fore tarsi once and a half as long as the tibife, the pulvilli large ; 

 middle tarsi scarcely longer than the tibiae, the pulvilli small ; all 

 the tarsi infuscated from about the third joint. Wings very 

 broad near the base on account of the extraoi'dinary development 

 of the anal angle ; first vein farther from the margin than 

 usual. 



$ . Face and front of equal width, the face remarkably broad 

 and short, greyish brown : the large palpi of the same colour ; 

 front opaque-brown ; front femora destitute of long hairs ; bristles 

 of posterior tibife stronger than in the male ; wings, although very 

 broad, not quite so much so as in the male. 



Length 2 mm. ; of wing, 1'8 mm. 



Eleven males, seven females. May. 



6. Diapliorus jiavipes, n. np. 

 Pure green, lightly dusted ; cilia of teguliB and inferior orbit 

 pale ; legs yellow ; eyes of male contiguous. 



