AMKRICAN HYMENOPTERA. 325 



coarsely reticulated, its shallowly pitted posterior face abruptly declivous; tegnlse 

 very large, scoop-shaped, punctulate, black, and slightly hairy; mesopleurse 

 coarsely punctured, with almost sericeous pubescence. Petiole of abdomen short, 

 transverse, black, its forward portion abrupt, shallowly excavated, glabrous and 

 polished, its posterior part more or less cylindrical, strongly punctured and cov- 

 ered with sericeous yellowish pubescence, ventrally the petiole bears a prominent 

 carina terminating anteriorly as a strong tooth ; second segment uniformly but 

 strongly punctured, its hairs dusky, becoming yellowish, short and sparse, fringed 

 apically with deep honey-yellow short hairs; remaining segments more finely 

 punctate, the discal hairs longer and deeper yellow, not fringed ; ventral seg- 

 ments sculptured as above, their hairs whitish ; pygidium un margined, but with 

 a strong median keel extending over two-thirds its length, apical hooks ferrugi- 

 nous. Legs short, slender, black, their pubescence and tibial spurs griseons. 

 Wings short, not extending beyond the third abdominal segment, fuliginous, the 

 base somewhat paler, provided with hyaline markings as follows : one transverse 

 streak in the first submarginal cell, one oblique in the second, two dots in the 

 obsolete third, and one longitudinal streak in the obsolete outer discoidal ; veins 

 narrow, black, stigma minute. 

 Length, 7 mm. 



One specimen, collected by the writer at Galveston, Texas, June 

 7, 1900. 



This species is a near relative of copano Blake, differing mainly 

 in the coarser sculpture of the second abdominal segment. 



101. Mutilla puleola Blake (174). 



Fig. 41 ; petiolo. 



Several females from Fedor, Texas (Birkman), May 13-17, 1899. 

 All measure 3.5 mm. 



102. VI ul ilia siidatrix sp. nov. 



Female. Head thickly covered with shojt appressed golden pubescence, second 

 abdominal segment with two discal spots of whitish pubescence, its apical margin 

 with a clear-cut white band interrupted at the middle, punctures deep. 



Castaneous. Head rounded, lighter in color than the body, almost ferruginous, 

 the vertex equalling the width of the thorax, occiput hemispherical, closely and 

 rather deeply punctured, but the sculpture concealed beneath the dense, matted, 

 golden pubescence which covers the whole upper surface and extends more 

 sparsely on the sides; eyes large, elongate-ovate, the ommatidia distinct; cly- 

 peus slightly emarginate in the middle; cheeks with an obtuse tooth within; 

 antenna? entirely ferruginous, scape short, slightly curved towards tip, in length 

 two-thirds the width of the front, punctulate, covered with sparse yellowish 

 hairs, basal joints of flagellum subequal in length. Mesothorax nearly uniformly 

 rounded, slightly more declivous in front, closely, deeply and regularly punctate, 

 provided with sparse, scattered, decumbent, yellowish pubescence and a few 

 erect, dusky hairs; seen from above, the humeri, propleurse and metapleurre are 

 sericeous; no scutellar scale. Petiole short, transverse, quadrate, impunctate 

 except for a single transverse central series of deep setigerous punctures, no 



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



