AMERICAN HYMENOPTERA. 29H 



30. * IVIutilla cypris Blake (47). 



Plate IV, fig. 19 ; petiole. 

 Numerous specimens from Woods Hole and New Bedford, Mass., 

 and from Chicago, Illinois. 



31. Ilutilla inTeiiSa Melander and Bines. 



M. infensa Mel. and Br., Biol. Bull., 1903, June, p. 24. 

 Plate IV, fig. 20; petiole. 



Head transverse, broadly concave behind, finely and closely punc- 

 tate, mandibles short, edentate; thorax elongate, sub truncate in 

 front, narrowed behind, rugoso reticulate, the ridges of the meshes 

 of the metathorax not raised except where they meet, scutellar scale 

 prominent; abdomen nearly impunctate, pygidium nearly smooth ; 

 legs strongly spined. Ferruginous, legs and apex of the abdomen 

 black, second dorsal with two ovate paler spots, pubescence short, 

 sparse, stiff, dense and black on thorax and base and apex of second 

 segment, elsewhere pale yellow. 



Woods Hole, Mass. Found running about on the nests of 

 Htdietus. 



This species differs from canella Blake by the broader head, peti- 

 olate abdomen and smooth pygidium. From cariniceps Fox it is 

 distinct by its partially black pubescence, impunctate second dorsal, 

 and by the pygidial structure. 



32. 9Iu( ilia texana Blake (52). 



Plate IV, fig. 22; petiole. 



Austin and Waco, Texas, September and October. 



33. Mutilla clilamydata sp. nov. 



Female. Head, thorax, and basal half of the abdomen rufo-piceous, apical half 

 of abdomen and legs piceous black; rugoso-punctate; largely clothed with ap- 

 pressed golden-red pubescence and with stubby erect hairs. Head confluentlv 

 rugosely punctured, not produced behind the eyes, but rather truncate posteri- 

 orly, cheeks with deep, rather distinct punctures which bear comparatively short 

 hairs, clypeus truncate, fringed with brown setae; scape thick, bent on outer 

 third, provided with deep coarse punctures, its yellow hairs sparse, first flagellar 

 joint but little longer than the second ; mandibles short, triangular, blackened : 

 palpi piceous; front and vertex with dense, appressed, golden-red pubescence, 

 and with short, erect, concolorous hairs. Thorax egg-shaped, almost rectangu- 

 larly rounded to the posterior face of the metathorax, closely and coarsely punc- 

 tured on the sides, the sculpture above concealed by the dense mat of appressed 

 golden-red pubescence, among which arise the sparse, stubby, golden hairs, the 

 hind face of the metathorax less coarsely punctured ; pleura?, coxte and femora 



TEANS. AM. ENT. SOC, XXIX. OCTOBER, 1903 



