INVESTIGATIONS ON THE MUTILLID WASPS 211 



puncturation of the second tergite and the submedian spot of second 

 tergite with small contiguous punctures. 



82. DASYMUTILLA SAETIGERA, new species 



Female. — Ferruginous, the head and thorax slightly darker than 

 the abdomen ; head and thorax sparsely clothed above with appressed 

 silvery pubescence, and scattered, erect, conspicuous black hairs, ex- 

 cept the vertex and mesonotal area with the pubescence entirely black ; 

 second abdominal tergite with separated, foveate punctures, a median 

 basal spot of black pubescence, and a basal and apical pair of indis- 

 tinct pale ferruginous spots ; length, 9.5 mm. 



Head dark ferruginous; scape, antennal scrobes, front and genae 

 with sparse, somewhat appressed silvery pubescence; front also with 

 conspicuous, erect, sparse, black hairs ; the vertex with the vestiture 

 entirely black ; mandibles acute at the apex, feebly unidentate within ; 

 anterior margin of clypeus feebly bidentate medially ; anterior half 

 of clypeus glabrous, impunctate, separated from the posterior half by 

 a sinuate carina ; posterior half of clypeus densely punctate and with 

 long pubescence, the latter forming the clypeal fringe ; scape closely 

 punctate; first segment of flagellum about twice as long as its own 

 width at the apex, approximately equal in length beneath to segments 

 3 and 4 united; antennal scrobes not carinate above; front, vertex 

 and genae coarsely, deeply, confluently punctate ; posterior margin of 

 the genae with a faint indication of a carina : relative widths of head 

 and thorax, 6.75-6,75. 



Thorax ferruginous ; a longitudinal spot of sparse, black pubescence 

 on the disk of the mesonotum and extending caudally to the scutellar 

 scale ; remainder of dorsum with sparse, somewhat appressed, silvery 

 pubescence, denser on the propodeum, and with conspicuous, scattered, 

 erect, black hairs ; dorsum very coarsely sculptured with large, deep, 

 confluent fovea; scutellar scale broad, conspicuous; propleura with 

 large, close punctures and a small area of fine punctures medially, 

 sparsely clothed with appressed, silvery pubescence; anterior half of 

 mesopleura finely punctured and with sparse, appressed, silvery 

 pubescence, the posterior half with large, contiguous punctures and 

 sparse, erect, silvery pubescence ; metapleura with a few coarse punc- 

 tures at the ventral margin, finely punctate elsewhere and with 

 appressed, silvery pubescence; sides of propodeum with large foveate 

 punctures. 



Abdomen ferruginous ; first tergite with indistinct, large punctures 

 on the disk, close, coarse punctures at the apical margin, clothed with 

 sparse, long, erect, pale hairs, a broad apical band of dense, silvery 

 pubescence, and a submarginal row of sparse, long, erect, bristle-like 

 hairs ; second tergite with a pair of basal and a pair of apical, indis- 

 tinct, paler ferruginous spots, the basal smaller than the apical; 



