324 A. L. MKLANJJER. 



97. Mutilla Xiij i Blake, var. hollensis, var. nov. 



Several males collected during different years at Wood's Hole, 

 Mass., differ from the western form of Sayi in their coarser sculp 

 ture, although agreeing in color. They may be described as follows : 



Head densely but finely punctured ; antenna; black, t lie scape clothed with 

 short blackish pile and with a rufous apex, third and fourth joints of antennae 

 equal. Mesothorax with five impressed smooth lines, the median one cuneiform 

 and extending only a short distance in back of the collar, the intermediate pair 

 entire, deep, the outer pair abbreviated anteriorly; scutellum reticulately punc- 

 tured, the reticulation of nearly the same structure as the punctures at the 

 hinder portion of the mesothorax ; dorsal groove of the metathorax short, 

 extending less than onedialf the way to the middle; tegulae impunctured, 

 polished. First segment of abdomen black, closely punctured, its ventral keel 

 acutely produced in front and annulate near the middle, second segment testa- 

 ceous, finely and remotely punctured on the disc, laterally and apically the 

 punctures become stronger and denser, and on the impressed apical margin 

 become minute and dense, almost scabrous. The impressed margin and the 

 remaining segments of the abdomen are darker ferruginous. Pubescence arising 

 from the ferruginous chitin black, except that of the last two segments and the 

 venter, which is whitish. 



Specimens of Sayi from Nebraska are in the collection of the 

 Museum of Comparative Zoology- A light-colored specimen was 

 found flying in a gravel-pit in Lake County, 111., September. Carini- 

 ceps vesta, ferrugata and sparsa were the only females discovered in 

 the vicinity after diligent search. Can this be the male of one 

 of these? 



Group scrupeq. 



98. Mutilla scrnpea Say (171). 



Texas (Museum of Comparative Zoology). 



99. Mutilla copano Blake (172). 

 Texas (M. C Z.) 



100. Ulutilla snsiira sp. nov. 



Male. Robust, coarsely punctured, head and thorax black, with short griseous 

 pubescence, abdomen rufous, eyes deeply emarginate, petiole of abdomen short, 

 constricted, black, legs and antennae black. 



Head small, narrower than the thorax, coarsely, confluently and rugosely 

 punctured, clothed with sparse, irregular, short, whitish hairs, ocelli small, eyes 

 large, strongly emarginate in front; antennae short, stout, black, the scape nearly 

 impunctate; mandibles but little reddish apically, short and stout, a prominent 

 tubercle at their base. Thorax robust, wide at the tegulse, narrowed before and 

 behind, the sides of the anterior portion not curved, humeri dentiform, the front 

 edge of the large prothorax broadly and shallowly excavated; prothorax and 

 mesothorax and scutellum very coarsely, deeply, rugosely punctured, metanotum 



