254 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 5b. 



mesopleur strongly, obliouelv striate; prop deum sparsel}- punctate 

 before basal carina, rugosely roughened beyond; sides of areolet 

 parallel; tergites callose apically, giving the abdomen the appearance 

 of being constricted at the sutures. 



In color much like the paler specimens of folychrosidis, but inner 

 orbits obscurely brownish ; pronotum above, scutellum, and posterior 

 face of propodeum white, thorax other^\'ise black ; antennae not white 

 annulate; abdomen ferruginous with basal half of second tergite, 

 sutures, and apical tergites black, seventh tergite ^vith a white mark; 

 middle joints of hind tarsus not white but fuscous with base reddish 

 as is also the basal joint. 



Host. — Polychrosis viteana Clemens. 



Type locality. — North East, Pennsylvania. 



Type.~Cat. No. 22851, U.S.N.M. " 



Described from two males reared Jidy 5, 1917, from cocoons of 

 host, under Quaintance No. 14456. 



In Provancher's key to Cryptus ^ runs to exilis Provancher. 



Genus CHROMOCRYPTUS Ashmead. 



The undescribed type of this genus, Chromocryptus alhopictus 

 Ashmead MS., has come to light in the national collection. It runs 

 in Thomson's Opuscula Entomologica key ^, directly to Hahrocryptus 

 Thomson. This is the genus from which it is finally separated by 

 Ashmead in his original description. In general form and structure 

 the genus is very similar to {Hdbrocry ptus) = Ischnus Gravenhorst as 

 represented by assertorms Fabricius and hrachyurus Gravenhorst. 

 It differs from Ischnus principally in having the head, especially the 

 cheeks and temples, more rounded; the malar space shorter; the 

 eyes less bulging; the antennae attenuate at apex; the thorax more 

 coarsely and distinctly sculptured; the radius originating at the mid- 

 dle of the stigma; the areola with the intercubiti nearly parallel; 

 the discoidal and brachial cells relatively shorter; the propodeum 

 shorter, with the posterior face precipitate and concave, nearly 

 completely areolated, the upper angles dentate, and the spiracles 

 not quite circular; the first tergite distinctly elbowed and with the 

 postpetiole more distinctly set off; the other tergites more coarsely 

 and distinctly punctate. The body is more strikingly colored, the 

 thorax and abdomen being tricolored and the coxae testaceous in- 

 stead of black. 



CHROMOCRYPTUS ALBOPICTUS Ashmead. 



Female. — Length, 9 mm.; antennae, 7 mm.; ovipositor, 2 mm. 



Head from above nearly twice as wide as long; temples nearly 

 perpendicular to longitudinal axis of body, nearly flat; vertex pre- 

 cipitate behind, punctate; frons irregularly rugoso-punctate ; eyes 



> Faun. Can. Ent., Hym., 1883, p. 329 » Fasc. 5, 1873, pp. 471 and 498. 



