196 MUTILLID^. 



less of short silvery-white pubescence ; the entire insect thinly 

 sprinkled with erect long black hairs. The apical margin of the 

 second segment of the abdomen fringed with white pubescence ; the 

 erect hairs on the body beneath are white. 



Hah. Damara Land and Namaqua Land. 



20. Mutilla atrata. 



Male. Length 4| lines. — Black ; the pubescence white ; the eyes 

 emarginate ; the anterior wings with three submarginal cells. 

 Head strongly and closely punctured, and covered with pubescence, 

 that on the clypeus dense ; the scape of the antennae also pubescent. 

 The mesothorax and tegulae of the wings rugose ; the wings fuscous, 

 with their base subhyaline ; the metathorax with large deep punc- 

 tures ; the postscutellum and the base of the metathorax, in the 

 middle, with dense short white pubescence, the rest of the thorax 

 and the legs with thin erect pubescence. Abdomen punctured, 

 not strongly so, and the base of the second segment with dense 

 silvery-white pubescence, all the segments thinly fringed with 

 pubescence. 



Hah. Lake Ngami. 



21. Mutilla deformis. 



Female. Length 4 lines.— Black ; the head much larger than the 

 thorax and nearly twice the width, subquadrate, and very closely 

 punctured ; mandibles porrect, bidentate, and slightly ferruginous at 

 their base and apex. Thorax longitudinally rugose, narrowest 

 anteriorly, truncate posteriorly, with the margin of the truncation 

 tridentate. Abdomen pyriform ; the margins of the second and 

 third segments with narrow fasciae of yellowish-white pubescence ; 

 the fascia on the second segment widens abruptly in the middle 

 into an angular shape ; there is also a similar patch in the middle 

 of the margin of the first segment. 



Hah. Zambesi. 



22. Mutilla fossulata. 



Female. Length 7 lines. — Black; the abdomen with two broad 

 yellowish- white fasciae. The head and thorax very coarsely rugose, 

 with elongate deep foveae, each being filled with short whitish 

 pubescence ; the second segment with a broad fascia of yellowish- 

 white pubescence ; the antenna? and legs with cinereous pubescence ; 

 the thorax oblong-ovate. The abdomen coarsely sculptured, par- 

 ticularly so at the base, clothed with black pubescence ; the second 

 segment with a broad fascia of yellowish-white pubescence a little 

 beyond the base of the segment, its anterior margin slightly notched 



