222 MUTILLIDiE. 



side of the second segment at its base ; the third and fourth seg- 

 ments with white pubescence, more or less interrupted in the 

 middle ; the apical segments with black pubescence ; beneath, the 

 second and third segments with a narrow fringe of white pubes- 

 cence. 



Hab. Uruguay. 



98. Mutilla gracilescens. 



Male. Length 5| lines. — Head, legs, and abdomen black ; thorax 

 and first segment of the abdomen ferruginous ; the apical margin 

 of the latter black. Head small and finely punctured, shining, 

 and with a little long white pubescence. The mesothorax not very 

 strongly punctured, the metathorax reticulated ; the coxae reticu- 

 lated; wings with two submarginal cells, subhyaline, pubescent, 

 and with the nervures testaceous ; the tibiae and tarsi with white 

 pubescence. Abdomen shining, not very closely punctured ; the 

 second and following segments ciliated with long white pubescence. 



Hab. Uruguay. 



99. Mutilla pubescens. 



Male. Length 5 J lines Black, and clothed with black and white 



erect pubescence. Head small, narrower than the thorax ; the 

 pubescence black, with a mixture of white on the vertex. Thorax 

 with short black pubescence in front ; the scutellum and the meta- 

 thorax with longer white pubescence ; the intermediate and pos- 

 terior femora and tibiae with a little thin white pubescence ; the 

 anterior wings with three submarginal cells, subhyaline from the 

 base to the marginal cell, the apical portion beyond dark fuscous. 

 Abdomen subpetiolate ; the first segment small, campanulate, and 

 covered with white pubescence, as is also the base of the second 

 segment, but narrowly so in the middle ; the third and fourth seg- 

 ments with white pubescence, interrupted in the middle; the 

 rest of the abdomen with shorter black pubescence. 



Hab. Mendoza. 



100. Mutilla incana. 



Male. Length 4^ lines. — Black ; the head, prothorax, scutellum, 

 apical margin of the first segment of the abdomen, and also that of 

 the second and third, with long white pubescence; wings sub- 

 hyaline, the anterior pair with three submarginal cells, the ner- 

 vures fusco- testaceous, the stigma and costal nervure black. The 

 second segment of the abdomen shining, and with thin, short, black 

 pubescence ; the fifth and following segments with black pubes- 

 cence. 



Hab. Mendoza. 



