INVESTIGATION'S ON THE MUTILLID WASPS 119 



Texas: Female, Arlington, August 6, 1908 (F. C. Bishopp) ; female, Childress, 

 June 8, 1906 (J. D. Mitchell) ; female, Texas (Belfrage) ; 2 females, 

 Richmond, June 22, 1917. 



The variety eiv^ans is very similar to the variety sappho. The apical 

 fringes of the first and second abdominal tergites of errans are 

 exactly like those of sappho. Ei-rans, however, is more pubescent, 

 like vesta, and the legs and body are paler ferruginous than in 

 sappho. In form and puncturation errans is similar to typical 

 vesta. I have examined the types of bosquensis Rohwer, and texensis 

 Rohwer and find them to be the same as errans. 



32, DASYMUTILLA COLUMBIANA, new species 



Male. — Black, the second abdominal tergite above mostly yellowish 

 ferruginous; head, thorax, and legs clothed with silvery gray 

 pubescence; abdomen with black pubescence except the yellow 

 maculation of the second tergite with yellowish pubescence; tegulae 

 punctate throughout ; posterior third of mesonotum extended laterally 

 into a distinct lobe; apical margin of last abdominal tergite with a 

 distinct fringe of erect hairs; second abdominal sternite without a 

 median pit or row of hairs simulating a carina. 



Head black, clothed with sparse, erect and appressed, silvery gray 

 pubescence; mandibles tridentate at the tips; apical margin of clypeus 

 distinctly bidentate medially ; clypeus densely, moderately punctate ; 

 scape feebly bicarinate beneath; coarsely punctate; first segment of 

 flagellum distinctly shorter than the second; antennal scrobes not 

 carinate above ; front and vertex densely, somewhat confluently punc- 

 tate; genae with distinct, separated punctures; relative widths of 

 head and thorax, 5.75-6.Y5. 



Thorax black, clothed with sparse, erect and appressed, silver gray 

 pubescence; cephalic margin of pronotum not at all cmarginate 

 medially; pronotum, mesonotum, and scutellum coarsely, confluently 

 punctate; posterior third of mesonotum extended each side into a 

 distinct lobe; tegulae punctate throughout; propleura with coarse, 

 contiguous punctures anteriorly, indistinctly punctate posteriorly; 

 mesopleura with coarse, distinct punctures throughout, separated and 

 intermixed with fine punctures anteriorly, contiguous medially and 

 posteriorly ; metapleura glabrous, the ventral third coarsely punctate ; 

 sides, posterior face, and dorsum of propodeum coarsely fovea.tely 

 reticulate. 



Abdomen black, the second tergite yellowish ferruginous, except 



the broad basal and narrow apical margins black ; clothed with long, 



sparse, erect, black pubescence, except that of the maculation of the 



second tergite yellow, first abdominal segment strongly nodose ; first 



55287—28 9 



