288 BULLETIN 45, UNITED STATES NATIONAL MUSEUM. 



Synopeas cornicola, sj). nov. 



ij 9. Lei)j;tli, 1 to 1.4""". Polished, blju'k, inipnnctiired. TTead a 

 little wider tliaii the thorax, the vertex posteriorly not iicii-ulatt'd. Aii- 

 teuiiu' 10 joiiit**<l, pale brown, the scape and the club dusky or luseous; 

 the first and third funiclar joints longer than thick, but still shorter 

 than the second; club 4 jointed, a little thickened toward apex. Tho- 

 rax ovoid, smootii, polished, with' a very sparse pubescence, thickest 

 near the scutelhnu; parai>si(hil furrows distinct only posteriorly, ante- 

 riorly obliterated; scutelluni a little elevated posteriorly, very pubes- 

 cent, the tuben'le covered with hairs; nietapleura woolly. Teguhe ruto- 

 piceous. Wings hyaline, pubescent. Legs pale brownish yellow, the 

 coxie brown, the postt'rior femora and tibiiv at tips, obfuscated. Abdo- 

 men oblong-oval, as h)ng as the head and thorax together, the i)etiole 

 striated, sparsely pubescent, the second segment with 2 oblong foveolw 

 at base, one on ea<'h side. 



Habitat. — Kirkwood, Mo. 



Types in National Museum. 



Described from specimens reared April 3, 1887, by Miss Mary Murt- 

 feldt, from a Cecidomyiid gall on Cornvs paniculata, at Kirkwood, Mo. 



Synopeas antennariae, sp. nov. 



i 9. Length, 0.8 to 1.1""". Polished, black, impunctured; vertex 

 of head posteriorly with a few faint aciculations. Antenna^ 10 jointed, 

 dark brown, the tlagellum subclavate, the tirst funiclar joint small but 

 still longer than thick and a little longer than the third, the club 

 5-jointed, the joints, except the last, scarcely twice as long as thick. 

 Thorax with the mesonotal furrows indicated only i)osteriorly ; scu- 

 telluni subconvex, smooth, not pubescent, the spine or tubercle want- 

 ing; metapleura sparsely pubescent. Teguhe brown or rufous. 

 Wings hyaline, legs reddish yellow, the coxa; brownish, the posterior 

 femora sometimes dusky. Abdomen long-ovate, distinctly longer than 

 the head and thorax together, the petiole grooved and with a sparse 

 pubescence. 



In the $ the abdomen is oblong-oval, about as long as the 

 head and thorax united; the legs uniformly bright yellow; the 

 antenna? pale brown, the tirst funiclar joint very small, rounded, the 

 second a little swollen and curved, about as long as the pedicel, while 

 the club joints are all longer than thick. 



Habitat. — Milwaukee, Wis. 



Types in National Museum. 



Described from many specimens, in both sexes, reared May 31, 1888, 

 by Mr. William M. Wheeler, from Cecidomyia antennaria Whir. 



Synopeas rufiscapus, sp. nov. 



S 9. Length, 1 to 1.1""'. Polished, black, impunctured; lateral 

 ocelli about twice their width &om the margin of the eye, but still a 



