104 BULLETIlSr 143, UNITED STATES NATIONAL MUSEUM 



28. DASYMUTILLA DIONYSIA, new species 



Female. — Head and thorax mahogany red, the abdomen ferrugi- 

 nous; sparselj'^ pubescent throughout; head as wide as the thorax; 

 second abdominal tergite with very large, separated, foveate punc- 

 tures, each bearing an erect hair; apical margin of second tergite 

 with a median spot of pale pubescence; pygidium longitudinally 

 striate; length, 10 mm. 



Head quadrate, mahogany red; mandibles acute at the apex, un- 

 identate within about one-third their length from the apex ; anterior 

 margin of clypeus very feebly bidentate medially; anterior half of 

 clypeus glabrous, impunctate, the posterior half densely punctured, 

 with its long pale pubescence forming the clypeal fringe ; scape with 

 shallow, somewhat indistinct punctures above ; first segment of flagel- 

 lum slightly longer than twice its width at the apex, about as long 

 as segments three and four united; antennal aerobes not carinate 

 above; front and vertex clothed with sparse, recumbent, silvery pu- 

 bescence, and scattered, erect, black hairs; front coarsely, more or 

 less confluently punctate ; vertex coarsely punctate, but the punctures 

 more shallow and separated than on the front ; genae with moderate, 

 shallow, separated punctures, not nearly as coarsely sculptured as the 

 front, clothed with sparse, recumbent, silvery pubescence; distance 

 between margin of the eyes and postero-lateral angles of the head 

 about equal to the greatest diameter of the eyes; relative widths of 

 head and thorax, 7.5-7.5. 



Thorax pyriform, mahogany red; dorsum of thorax with very 

 large, coarse, more or less confluent punctures, the punctures becom- 

 ing larger caudad and merging with the fovea of the propodeum; 

 pronotal area with sparse, black, erect and recumbent pubescence; 

 the mesonotal area with sparse, recumbent, silvery pubescence and 

 erect black hairs ; scutellar scale entirely absent ; dorsum, and dorsal 

 half of posterior face of propodeum deeply, very coarsely, contig- 

 uously foveate; sparsely clothed with scattered, erect, black hairs, 

 and a small area of recumbent, silvery pubescence on the dorsum; 

 ventral half of posterior face of propodeum finely punctate, indis- 

 tinctly sculptured, sparsely clothed with silvery pubescence; pro- 

 pleura punctate at the margins, the disk impunctate; a distinct line 

 of dense silvery pubescence between the propleura and the meso- 

 pleura; anterior two-thirds of mesopleura finely punctate, clothed 

 with recumbent, silvery pubescence; posterior third of mesopleura 

 coarsely, confluently punctate, with sparse, very long, erect, silvery 

 pubescence, and a spot of rather dense, recumbent, silvery pubescence 

 on the postero- ventral area; metapleura finely punctate, densely 

 clothed with recumbent silver}^ pubescence; sides of propodeum gla- 

 brous impunctate, indistinctly sculptured at the posterior margin. 



