XXVIU MONTHLY PROCEEBINGS 



Ifletopiils bellus. — % .—Black; face, anterior orbits, spot beneath eyes, 

 labruin, palpi, scape beneath, upper lateral margin of prothorax, scutellum 

 except base, spot on postscutellum, two spots on metathorax, large mark on 

 pleura laterally, tegulse, legs except posterior coxae above, tips of their femora, 

 first abdominal segment except base, narrow lateral and apical margins of 

 segments two and three, and the remaining segments except two black spots 

 on each near base, all pale yellow; antennae three- fourths the length of body, 

 slender, filiform, fulvous, dusky above; wings yellowish-hyaline; posterior 

 femora subrobust; abdomen long, first segment subpyramidal in profile, when 

 viewed from behind the prominence is bituberculate. Length .55 inch. 

 Hub. — Nevada. (Morrison). 



Metopius comptus.— 9'— Black; face, except a medial line, spot be- 

 tween antennse, line on each side, labrum, palpi, scape beneath, upper lateral 

 margin of prothorax, scutellum except base, two spots beneath tegulse, dot on 

 each side of metathorax posteriorly, and spot on flanks, pale yellow; antennae 

 thickened, a little longer than head and thorax, brown-ferruginous, black at 

 tips; wings subhyaline; legs dull fulvous, spot on coxae, trochanters, four 

 anterior knees, and their tibiae and tarsi, yellow, posterior femora robust, their 

 middle above and their tibiae at tips, blackish; abdomen coarsely punctured, 

 base of segments 1—3 and middle of four ferruginous, spot on each side of first 

 segment, the second and third except base, apical margin narrowly of 4 — 6 

 and spot at sides of four and five, yellow, first segment rounded above in profile, 

 the disk with two carinae broadly diverging at base; venter fulvous, black at 

 tip. Length .50 inch. 



Ifab. — Colorado. (Morrison). 



Ifletopius niontanus.— 'S .—Black ; face except two dots arranged 

 longitudinally, anterior orbits, scape beneath, tegulae, line beneath, apical 

 margin of scutellum, a spot on each side at base, spot behind, two spots on 

 metathorax behind, and smaller one on each flank, yellow; antennae robust, 

 filiform, two-thirds the length of body, black, fulvous at base; upper lateral 

 margin of prothorax, spot on tegulae posteriorly, and stain on sides of pleura 

 anteriorly, dull ferruginous; wings subhyaline, costa broadly yellowish, pale 

 fuscous beyond stigma, with costal nerve and stigma fulvous; legs robust 

 especially posterior pair, yellow; middle of four anterior femora and outer side 

 of posterior coxae, fulvous, their coxae within, their femora except base and 

 apex and their tibiae at tip within, black, their tarsi fuscous; abdomen coarsely 

 confluently punctured, sulphur-yellow, base of first, the second except lateral 

 apical corners, the third except apex and apical corners, and base of remaining 

 segments narrowly, black; first segment flattened in profile, the disk with two 

 longitudinal carinae. Length .45 inch. 

 Hab. — Colorado. (Morrison). 



9Ietopius coucinnus. — "J,.— Black; face except central longitudinal 

 black mark, carina between antennae, short line on each side, scape beneath, 

 upper margin of prothorax interrupted medially, tegulae except spot behind, 

 line beneath, spot on each side of pleura anteriorly, apex of scutellum, spot 

 behind, and another spot on flanks, sulphur-yellow; antennae two-tbirds the 

 length of body, filiform, fuscous, shading into ferruginous at base; wings 

 yellowish-hyaline, broadly pale fuscous along costa, darker at tip; legs yellow, 

 coxae except tips and sides of posterior pair, femora except apex and extreme 



