620 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 49. 



width. Two proclinate outer fronto-orbitals, two rcclinate inner 

 ones, a pair of proclinate ocellars; these all about same strength. 

 Two verticals, the inner much longer and not decussate. Proboscis 

 short and fleshy, palpi strongly clavate. Frontals reaching halfway 

 or less to ocellar area, descending to insertion of arista. Second 

 antennal joint slightly elongate; third joint long, about three times 

 as long as the secdnd. Cheeks about one-fourth eye-height. Front 

 tarsi of female not differentiated. Hind tibiae of female sparsely 

 pectinate, with longer bristles. Apical cell open well but not far 

 before wingtip. Fourth vein bent abruptly, without stump or 

 -wrinkle. Hind cross-vein sinuate, nearer to cubitus. Costal spine 

 small. Scutellum with rather long decussate apical pair of bristles, 

 two long strong lateral pairs, a lateral one between last and a discal 

 separated pair about equal to apical. Abdomen with median mar- 

 ginal pair on segments one and two; more or less complete marginal 

 row on three, with sometimes a median short discal pair; discal 

 row on four besides terminal bristles. Abdomen swollen, almost 

 oval, nearly as deep as A\dde, thus rather keg-shaped, anal segment 

 subcorneal, reproductive slit very long, ovipositor more or less con- 

 cealed within base of same. Three, abnormally four, sternopleurals ; 

 three postsuturals. Whole form stout, legs stout and not elongate, 

 claws of female nearly as long as last tarsal joint. Wings extending 

 a Httle beyond tip of abdomen. Cly])eus sunken. 



Uterus short and stout. The black microtype eggs are patelliform, 

 longitudinally-concentrically corrugated. 



EUGAEDIOPSIS, new genus. 



Genotype. — Gaediopsls ocellaris Coquillett, Proc. U. S. Nat. Mus., 

 vol. 25, 1902, p. 118. 



Differs from Gaediopsis as follows: No facio-orbitals, only fine 

 hairs on parafacials. No ocellars. Facial ciha of equal strength. 

 Cheeks of male about one-third eye-height. Third antennal joint of 

 male about three times as long as the rather elongate second. Arista 

 as described for Gaediopsis. Three postacrostichals and four post- 

 suturals. 



CHAETOGAEDIOPSIS, new genus. 



Genotype. — Gaediopsis cockerellii Coquillett, Proc. U. S. Nat. Mus., 

 vol. 25, 1902, p. 117. 



Differs from Gaediopsis as follows : Cilia of f acialia of equal strength. 

 Parafacials with vertical row of stronger bristly hairs in front of the 

 finely-hairy area. Cheeks of male nearly one-half eye-height. Male 

 with two rows of frontal bristles. Hind tibiae of male ciliate, with 

 a long bristle in middle. Third antennal joint of male four or five 

 times as long as wide, less than three times the elongate second. 

 Second aristal joint over four times as long as wide, the third grad- 



