OF WASHINGTON. 17 



(17) CERAMBYCOBIUS new genus. 

 (Type Rvpelmus cleri Ashm.) 



Head transverse, as wide as widest part of thorax, viewed from in front 

 rounded, not longer than wide; temples narrow; face with a A-shaped 

 antennal furrow; clypeus not separated; maxillary palpi 5-jointed ; labial 

 palpi 3-jointed; mandibles 3-dentate; eyes large, oblong oval, pubescent; 

 antennae 13-jointed, inserted below an imaginary line drawn from base of 

 eyes, widely separated at base, the scape long, slightly compressed, the 

 flagellum subclavate, the pedicel longer than the first joint of funicle. 



Thorax long as in Eupelmus ; wings with the marginal vein as long or 

 nearly as long as the submarginal, the stigmal vein not short, oblique, 

 subclavate, about one-third the length of the marginal, slightly curved, 

 the postmarginal very long, nearly as long as the marginal; legs as in 

 Eupelmus. 



Abdomen long, longer than the head and thorax united, and ending in 

 a prominent ovipositor, depressed above, convex or carinate beneath, the 

 apical margins of the dorsal segments 1-5 incised oremarginate medially. 



(24) LECANIOBIUS new genus. 

 (Type cockerellii.) 



Head transverse, wider than the thorax, viewed from in front twice as 

 wide as long, the face being very short; frons with a deep A-shaped 

 antennal furrow; eyes rounded, bare; ocelli triangularly arranged ; max 

 illary palpi 4-jointed, the last joint the longest; labial palpi 2-jointed; 

 mandibles indistinctly tridentate; antennae 13-jointed, inserted a little 

 below the middle of the face, widely separated at base, the flagellum sub 

 clavate, obliquely truncate at tip from beneath. 



Thorax as in Anastatus, the scutellum with some long black bristles ; 

 wings with a fuscous discoidal band or cloud. The marginal vein long, 

 the stigmal vein rather short, ending in a small knob, the postmarginal 

 vein not longer than the stigmal, usually a little shorter; legs as in 

 Eupelmus, except that the hind tibiae are somewhat flattened. 



Abdomen much shorter than the thorax, as seen from above flat and 

 ovate in outline, although in dried specimens usually appearing spatulate 

 from the retraction of the terminal segments, beneath triangularly cari- 

 nated, the ovipositor not exserted or at the most subexserted; the apical 

 margins of dorsal segments are all apparently straight, not at all emar- 

 ginate or excised. 



(i) Lecaniobius cockerellii n. sp. 



Female. Length 2 mm. Head light brown, the vertex usually with 

 metallic reflections and sometimes surrounding the ocelli, more or less 

 aeneous; scape of antennae brownish-yellow, the pedicel and flagellum 

 brown-black. Thorax mostly aeneous, strongly iridescent; plate in front 

 of teguhe, upper surface of prothorax and coxal cavities light brown; 



