XXXU MONTHLY PROCEEDINGS 



deformities known to him illustrated and described, and the com- 

 munication presented in the future. 



Mr. E. T. Cresson presented' the following descriptions of new 

 hymenoptera: — 



Philauthiis subliniis. — %,. — Black; head and thorax clothed with a 

 pale pubescence; head large, front prominent above antennse; the entire face, 

 nearly as high up as the lower ocellus, clypeus, most of mandibles, line on 

 cheeks, two spots connected posteriorly behind ocelli, scape, four or five basal 

 joints of flagellum beneath, prothorax above, two lines on mesothorax, two 

 spots on scutellum, sometimes confluent, a dot on each side anteriorly, post- 

 scutellum, tubercles, a spot behind them and a larger subtriangular spot be- 

 neath, spot on each side of metathorax behind, sometimes two oblique lines on 

 base, tegulse, spot on all the coxae beneath, apical half or two-thirds of femora, 

 tibiae and tarsi entirely, band on middle of first segment of abdomen sometimes 

 interrupted, broad band on second and remaining segments, that on second 

 segment triemarginate posteriorly, transverse spot on second segment of venter 

 and bands or spots on remaining segments, all lemon-3'ellow ; face broad; meso- 

 thorax shining, sparsely punctured; metathorax closely punctured, opaque, 

 more or less deeply impressed longitudinally at base above; wings j'ellowish- 

 hyaline, nervures and stigma pale fulvous; abdomen very coarsely, not 

 closely, pitted, venter rather densely clothed with pale pubescence. Length 

 .50 — .55 inch. 



JIab. — Colorado ; California. 



I'hilanthus ealiforiiicus. — %. — Black, shining; head and thorax 

 sparsely clothed with pale pubescence; face broad, prominent above antennae; 

 the entire face nearly as high up as lower ocellus, clypeus, most of mandibles, 

 line on cheeks, two spots behind ocelli, sometimes confluent posteriorly, scape, 

 the four or five basal joints of flagellum beneath, subinterrupted line on pro- 

 thorax above, two dots on disk of mesothorax sometimes wanting, two spotB 

 on scutellum, postscutellum, tubercles, spot behind and another beneath, tegulae, 

 spot or line on coxae beneath, apex of femora more or less, tibise and tarsi en- 

 tirely, narrow interrupted band on middle of first segment of abdomen, broad 

 band on second segment, n.otched in middle posteriorly, a rather broad bisinu- 

 ate band on third, narrow bands on apical margin of three following segments, 

 and subobsolete bands on venter, all yellow; head large; mesothorax with fine 

 scattered punctures, deeply impressed on anterior middle; metathorax as in 

 sublimis ; wings yellow-hyaline, nervures and stigma pale fulvous; abdomen 

 shining, with deep scattered punctures on two or three basal segments; venter 

 thickly clothed with pale pubescence. Length .47 inch. 



Hab. — California. Closely allied to sublimis, but the abdomen is 

 much less coarsely sculptured. 



Philanthus pacifieus. — %. — Black, shining; head and thorax thinly 

 clothed with pale pubescence; the face, extending up to ocelli, clypeus, two 

 spots behind ocelli, spot behind eyes, spot on mandibles, dot on scape beneath, 

 four basal joints of flagellum beneath, prothorax above, two stripes on disk of 

 mesothorax, tegulse, spot or line in front, scutellum sometimes interrupted in 

 middle, postscutellum, two spots or oblique lines on disk of metathorax, tuber- 



