IlSrVESTIGATIONS ON THE MUTILLID WASPS 105 



Abdomen ferruginous; first segment short, nodose; first tergite 

 coarsely, contiguously foveate, indistinctly so on the disk, very 

 coarsely so near the apex, clothed with scattered, erect, pale hairs, 

 and a thin apical fringe of pale pubescence ; second tergite with very 

 large, separated, foveate punctures, each bearing an erect hair most 

 of which are black, a few on the disk pale; apical fringes of second 

 and third tergites black, except lateral extremes and median spot 

 silvery; tergites 3-5 with moderate, close punctures, clothed with 

 scattered, long, erect, black hairs, and sparse, recumbent pale pubes- 

 cence; apical fringe of fourth tergite entirely silvery; apical fringe 

 of fifth tergite black, interrupted medially by a broad spot of silvery 

 pubescence; pygidial tergite with black hairs at the margins; pygi- 

 dium longitudinally striate, the interspaces between the striae granu- 

 late; carina of first sternite prominent, bidentate; second sternite 

 with large, separated, elongate punctures throughout, sparsely 

 clothed with long, erect, pale hairs; apical margins of sternites 3-5 

 confluently punctate; apical fringes of sternites 2-5 silvery. 



Legs ferruginous, sparsely clothed with pale hairs; tibial spines 

 and calcaria black. 



Holotype. — Female, Douglas, Arizona, San Bernardino ranch, 

 August (F. H. Snow), in collection of University of Kansas. 



Paratype. — Female, Cochise County, San Bernardino ranch. Au- 

 gust (F. H. Snow), in collection of University of Minnesota. 



Closely related to texanella and sparsa. It may be distinguished 

 from both by the coarse puncturation of the second abdominal tergite. 

 The apical fringe of the second tergite and the dense pubescence of 

 the metapleura also distinguish it from texanella. 



Group VESTA 



Females with the head a little narrower than the thorax ; antennal 

 scrobes not at all carinate above; thorax pyriform; scutellar scale 

 present; pygidium striate. Males with anterior margin of pro- 

 notum not emarginate medially; posterior third of mesonotum ex- 

 tended laterally each side into a broad, distinct lobe; tegulae punc- 

 tate throughout; last abdominal tergite with a fringe of hairs at 

 the apical margin; second abdominal tergite without a median pit 

 or a row of hairs simulating a carina. 



29. DASYMUTILLA VESTA (Cresaon) 



Plate 1, fig. 8 



Mutilla vesta Cbesson, Proc. Phila. Ent. Soc, vol. 4, p. 436, 1865, female — 

 Dalle Tokre, Cat. Hymen., vol. 8, p. 96, 1897, female.— Fox, Trans. 

 Amer. Ent. Soc, vol. 25, p. 239, 1899, female. — Melandee, Trans. Amer. 

 Ent. Soc, vol. 29, p. 298, 1903, female.— Ruckeb, Ent. News., vol. 14, 

 p. 75, ?1903, female. 



