ENTOMOLOGICAL SECTION. XXXIU 



cles, spot behind, knees, tibise and tarsi, broad band on first and second seg- 

 ments of abdomen, deeply notched on each side posteriorly, narrow band at 

 apex of third and throe foilowing segments more or less deeply emarginate on 

 each side anteriorly, all yellow or yellowish-white; around the base of antennte 

 the face is more or less black; head large; mesothorax smooth, polished, with 

 a few scattered punctures; metathorax closely punctured, with a short rather 

 deep groove on disk ; wings hyaline, tinged with yellow, stigma and costa pale 

 fulvous; abdomen shining, finely and sparsely punctured; venter piceous, 

 apical margin of segments paler. Length .30 — .35 inch. 

 Hah. — Nevada ; Oregon. 



PhilanthsiS soelcstus. — 9- — Deep black, shining; head large, face 

 broad, prominent between antennse; space between ocelli and insertion of 

 antennae opaque; face, continued up on each side as far as emargination of 

 eyes, three spots sometimes confluent between antennse, clypeus, line on mandi- 

 bles, scape beneath, interrupted line or two spots on collar, tubercles, jiost- 

 scutellum, dot on tegulse, spot on sides of first segment of abdomen, sublunate 

 spot on each side of second, and interrupted or subinterrupted line on apex of 

 two or three following segments, white; knees, tibite except tips beneath and 

 most of tarsi, yellowish; thorax above smooth and impunctured, a sliallow 

 fovea on disk of metathorax; wings dusky, tinged with yellowish; abdomen 

 smooth and impunctured; sometimes the white line on apex of third and 

 fourth segments are not interrupted, but deeply and squarely emarginate on 

 each side anteriorly. Length .35 — .42 inch. 

 Hab. — Colorado. 



Philanthiis basilaris. — 9 -—Black, shining; head and thorax clothed 

 with pale pubescence; a large subcordate mark between antennse, sides efface 

 narrowed to emargination of eyes, clypeus, line on mandibles, line behind eyes, 

 four basal joints of antennse beneath, interrupted line on collar, postscutelluin, 

 tubercles, spot behind, and tegulse, white; apex of four anterior femora be- 

 neath, posterior knees and tibiae, except spot behind on two anterior pairs, pale 

 yellow; tips of posterior tibise beneath and the tarsi fulvous; wings yellowish- 

 hyaline, nervures and stigma pale fulvous; two basal segments of abdomen 

 above, and the three beneath, fulvous, an irregular band on first segment, a 

 broad, sometimes interrupted band on second, and a narrower entire band at 

 apex of third and following segments, white; space between summit of eyes 

 much narrower than usual; mesothorax finely punctured, sparsely so on disk 

 and on scutellum; disk of metathorax with a rather deep longitudinal groove; 

 abdomen shining, with deep sparse punctures, closer and coarser on two basal 

 segments. Length .55 — .60 inch. 



% . — Eyes nearly meeting on vertex; the spot on front above antennse large 

 and subrhomboidal; the eight basal joints of antennse are yellow beneath; 

 the base of first abdominal segment above and two basal segments beneath are 

 pale fulvous; the segments above rather more coarsely punctured than in 9« 

 Length .40 inch. 



Hah. — Colorado. 



Pbilanthus zebratus. — 'J,.— Black, shining; eyes unusually large, 

 nearly meeting on vertex; the entire face, extending up as high as ocelli, 

 clypeus, spot or line behind eyes, eight basal joints of antennse beneath, inter- 

 rupted line on collar, tegulse, spot in front, spot on tubercles, sublunate spot 



MONTHLY PEOC. ENT. SEC. A. N, S. (6) DECEMBER, 1879. 



