326 W. H. ASHMEAD. 



tate : iiietanotiiin sliipiuf; off behind and not so abrui>tly (lecliiiiiig as is usual in 

 the greiHis, approa(;hiii}i more nearly typical Isosomse ; tegulse black. Wings 

 hyaline, the venation light brown, the marginal vein one and a half times as 

 long as the stigmal, the latter clavate vfith an uncus, the postmarginal vein not 

 longer than the stigmal. Abdomen small, oval, with a petiole as long as the 

 hind coxaj and finely punctnlate; body of abdomeu highly polished with the 

 third segment the longest, the following retracted. 



Hab. — Morgan town, W. Va. Bred by Prof. A. D. Hopkins from 

 TomicuH plagiata. 



The species comes nearest to S. crasshieura, hut is readily sepa- 

 rated by the less thickened marginal vein, the dilated scape of an- 

 teunte, and the larger metanotum. 



Kiirytoina pliltieotribi sp. u. 



9 .^Length 1.5-2.1 mm. Black, scape beneath, trochanters, knees, tips of 

 tibise and tarsi, honey-yellow or whitish ; occasionally the face below, cheeks 

 and anterior and middle coxae are honey-yellow; the femora and tibise, except 

 at both ends, being obfuscated. Head subquadrate, convex before, the fi'ons 

 deeply impressed for the reception of antennae ; flagelluni subclavate.'two and 

 one-half times as long as the scape, the funicular joints submonilifoi-m, the club 

 large, fusiform, much stouter than funicle and half its length. Thorax with 

 the pronotum longer than the mesonotum, but narrower; scutellum longer than 

 the pronotum: metanotum short, declining, without a median impression, 

 Wings hyaline, the venation yellowish, the marginal vein very slightly longer 

 than the stigmal, somewhat stout, the postmarginal not longer than stigmal. 

 Abdomen with a distinct, long, slender petiole, which is much longer than the 

 hind coxse ; the body of abdomen is subcompressed, much shorter than the tho- 

 rax, the fourth segment of which is the largest, occupying nearly the whole 

 apical half. 



ifa6.— Morgan town, W. Va. Bred March 23, 1893, by Prof. A. 

 D. Hopkins, from Ph/oeotri bus frontalis Oliv. living in Mulberry. 



i2iii'ytoiii» inagflalidi^i sp. n. 



$. — Length 2.6 mm. Entirely black, except knees, extreme tips of tibiae and 

 the tai'si, which are white. Head wider than thorax, or twice as wide as thick 

 antero-posteriorly, the fronswith an antennal furrow; flagelluni not quite three 

 times as long as the scape, subfiliform, the club scaicely thicker than the funicle; 

 the first Funicular joint is the longest, about one-half longer than the second, 

 the two following subequal with the second, the fifth scarcely longer than wide; 

 club conical, as long as the pedicel and first funicle united. Thorax with the 

 pronotum not quite as wide, nor as long as the mesonotum; scutellum very 

 slightly longer than the mesonotum ; metanotum obliquely declining. Wings 

 hyaline, the venation light brown, the marginal vein less than twice as long as 

 the stigmal, the latter terminating in a stigma with quite a distinct uncus that 

 is curved or directed upwards; postmarginal longer than stigmal. Abdomeu 

 distinctly petiolated, conic-ovate, longer than the head and thorax united, the 

 petiole being nearly three times as long as thick, the segments 2, 3. 4, 6 and 7, 

 very nearly equal in length, segment 5 a little longer than 3 aiui 4 u'lited. 



Hab. — Morgantown, \V. Va. Bred by Prof. A. D. Hojjkins from 

 MaydulLi arinico/lis living in elm. 



