62 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.63. 



plates which bear a palpus-like prolongation at the front edge ; fifth 

 sternite deeply incised, its sides parallel, with a few hairs on the 

 edges; fourth sternite visible in a V shape, its base concealed, its 

 apex slightly bent down so as to be rather prominent. Legs black; 

 middle tibiae with two bristles on the front side, hind tibiae with an 

 uneven series on outer side; all the claws and pulvilli moderately 

 elongated, the anterior ones most. Wings hyaline, rather narrow at 

 tip, the fourth vein bent sharply at a right angle and provided with 

 a distinct fold; first posterior cell rather widely open very far 

 before the apex ; third vein w4th five or six bristles at base. 



Length 9 mm. 



Described from 5 males, three labeled " E. E. A. Cuba, 8129 " ; one 

 Havana, Cuba (C. F. Baker) ; one Mariel. Cuba (Palmer and Riley). 



ry/?^.— Male, Cat. No. 25709, U.S.N.M., from the lot first men- 

 tioned. 



PHOROCERA HAMATA. new species. 



Male. — Front at narrowest 0.31 of the head width. The para- 

 frontals gray pollinose with rather long hairs outside the usual 

 frontal bristles, the latter extending below the arista almost to the 

 uppermost bristles of the facial ridges; antennae black, slightly 

 brownish at base; the third joint four times the second and un- 

 usually broad at the apex. The arista thickened almost half way; 

 palpi small, yellow; proboscis short, black. Thorax gray pollinose 

 with the usual four stripes when viewed from behind ; anterior acros- 

 tichals three pairs, posterior dorsocentrals 4; sternopleurals 3; 

 pteropleural wanting. Abdomen quite blackish, subshining, but the 

 basis of the first and third joints with gray pollen, which 

 is much more conspicuous in some lights than others; there is a 

 distinct median dark stripe. The hairs of the second and third 

 segments are erect but not bristly. The first and second segments 

 have a pair of smallish median marginals, the third segments a 

 row ; the fourth segment a mixture of erect bristles and hairs. The 

 genital segments are small, reddish-brown, hairy but not bristly ; 

 the inner forceps are united into a flat, tapering piece which ends 

 in a very slender median rather straight process, slightly bent up 

 apically. This structure is very much like that of claripennis but 

 is not so hairy on the basal part. The fifth sternite is deeply cleft 

 and the sides of the cleft are parallel or even convergent for some 

 distance; the lateral plates of the segment are shining black and bear 

 a f CAV long hairs on the outer margin. Legs black ; the middle tibia 

 with two bristles on the outer front side ; claws and pulvilli all about 

 equally long. Wing hyaline; the third vein a little bent forward 

 at the extreme apex; the fourth vein with a slight fold at the bend 

 which is quite square. 



Length 7.5 mm. 



