AMERICAN HYMENOPTERA. 119 



Descriptions of New Species of MUTIIiIiA, 



BY E. T. CRESSON. 



jflntilla peculiaris. 



9- — Jjong, linear, slender, brown-ferruginous; head slightly broader than 

 thorax, transversely subquadrate; cheeks and occiput clothed with long pale, 

 vertex with black, and mouth with long fuscous pubescence; flagellum ex- 

 cept base blackish ; thorax divided into two nearly equal parts, the anterior 

 portion short, quadrate, covered with a dense appressed pale golden pubes- 

 cence ; posterior portion or metathorax rather longer than the anterior, rapidly 

 sloping behind, sparsely pubescent and finely reticulated, substriate at base 

 above; legs with sparse long pale hairs, anterior tibise and extreme tips of the 

 two posterior pairs black, tibial spurs white; abdomen elongate-ovate, clothed 

 with appressed fuscous pubescence, the apical margin of first and second seg- 

 ments narrowly and a spot on each side at apex of the first, silvery-white ; apex 

 of abdomen with long, sparse, erect, fuscous hairs; apex of first segment cam- 

 panulate, petiole short and slender. Length 4 lines. 



Califoruia. (Gr. R. Crotch.) A singularly formed species, belong- 

 ing to division I. of the subgenus Mutilla as defined by Blake, but 

 not allied to any of the species known to him. 



niutilla Edwardsii. 



%. — Elongate, slender, uniformly rufo-fulvous, densely and rather coarsely 

 punctured, more feebly so on abdomen, clothed with a short, erect, tolerably 

 dense, golden-fulvous pubescence; tips of mandibles and third and following 

 joints of antennae black; metathorax coarsely reticulated ; wings blackish-fus- 

 cous, with a hyaline spot beneath third submarginal cell; abdomen shining. 

 Length 6 lines. 



Oregon. (Henry Edwards.) This handsome species is allied to 

 miripilis^ from which it differs by the less coarse punctuation and by 

 the more dense uniform golden pubescence. Belongs to division I. 

 sub-division I. of the subgenus SphaE.ropthalma . 



Mutilla tecta. 



9- — Form elongate, subrobust, fuscous; head narrower than thorax, not 

 broader behind the eyes ; thorax short, subquadrate, broadest across the middle ; 

 abdomen oblong-ovate; entire body and legs clothed with a very long, dense, 

 suberect, pale ochraceous pubescence, more sparse on body beneath and legs. 

 Length 6 lines. 



Califurnia. (Henry Edwards.) Allied to magna, but at once dis- 

 tinguished by the pubescence of body beneath and legs being pale 

 ochraceous instead of black. This and the following species belong 

 to division I., sub-division II. of the subgeuus Spheeropthalma. 



