154 THE CANADIAN ENTOMOLOGIST. 



shining ; basal segment constricted as \x\ pimctattis. Punctures on vertex 

 distinct, fair sized, scattered ; on mesothorax and scutellum rather finer, 

 scattered ; of about the same size on metathorax, but closely crowded 

 (fovea with fine transverse wrinkles not A shaped or coarse as in flavi- 

 fro?is) ; on abdominal seg. 1-2, large and pit-like as in ptmctattts, still 

 large but sparse on seg. 3, on remaining seg. fine and so few as to be 

 hardly apparent. Wings hyaline, a little dusky at centre and more so at 

 apex ; nervures pale rust-coloured. 



One female in collection ; T. D. A. Cockerell. 



Hab.— New Mex. (N. F. Gila, July 16). 



In marking \\V.Q.flavifro?is, Cr., and in build like pujictatiis. Say. 



Philanthiis multimaculatus, Cameron (Philanthus annaj, Dunning. 

 Ent. News, 1897, p. 68, ,^ , not ? ). Four males and three females 

 before me; the former are about 8-10 mm. long, the latter ir-12 mm. 

 Las Cruces, N. Mex., on Salix, May 2, i ^ (CklL); Mesilla, N. M., 

 June 24, on Aster spinosus, i ? (ident. Ckll.) ; Calif, (taken by Prof. 

 Griffith, Los Angeles), 2 9 ; Colo. (Baker, No. 1591)) i ? J Denver, Colo., 

 July 20, 2 (5^ , on Cleome serrulata (D. 1105a, D. 1271b). 

 FhilaJithus serrulatcz, n. sp. 



$ . — Length, 9 mm. Black with yellow markings. A ^q^n ochraceous 

 hairs on head and venter ; distance between eyes on vertex equal to 

 length of joints, 3-5 of antennae; 3d. jt. antennae longer than 4-5 com- 

 bined ; cavities at extremities of scutellum and postscutellum, like 

 multimaciilatus, Cam., and others ; wings fulvo-hyaline, not clouded, 

 nervures and stigma pale rust-coloured ; punctures on vertex close and 

 fine, on mesothorax fine but irregularly scattered (postscutellum and 

 scutellum not punctured), on metathorax close and fine, including 

 enclosure (which is not well defined), on seg. 1-2 not quite so fine, but 

 close, sparse on seg. 3 and still more so on seg. 4-5, on venter like 

 seg. 1-2 ; face to ocelli (except base of antennas), spot on scape and joints 

 3-5 on one side, spots on vertex and behind eyes, collar, two spots or 

 lines centrally on mesothorax and two smaller spots at sides in front of 

 tegulae, scutellum, postscutellum, tegulae, tubercles, spot behind, broad 

 bands on seg. 1-2, narrow irregular bands seg. 3-6, knees, tibia, yellow ; 

 apical 4 joints of antennae and most of tarsi rust-coloured or rufous; collar 

 declivitous. 



From multimaadatus it differs at once in fine punctures, clear wings 

 and markings ; from arizonce in distance of eyes apart on vertex, cavities 



