268 HYMENOPTEKA. 



This species agrees in size and coloration with M. connexa (including the coloration 

 of the basal segment of the abdomen, which is only black at the base), but differs from 

 it in having the abdomen distinctly punctured ; the pygidium with only the lateral 

 keels distinct at the apex, the centre being raised, smooth, and shining, and terminating 

 in a closed longish area, which is acutely pointed at the base and apex ; the hypo- 

 pygium not dilated in the centre, and terminating laterally in two stout teeth. 



Also a close ally of M. cyra, but it is a stouter species ; the head wants the golden 

 pubescence, which, besides, is black below ; the thorax is more distinctly concave ; the 

 hair on the abdomen is black; and the white lines on the second segment are 

 longer. 



7. Mutilla suspensa. 



Mutilla suspensa, Gerst. Archiv f. Naturg. xl. p. 299 (1874). 

 Eab. Mexico 1 . 



This species has the head and thorax red ; but only the femora in front and the coxae 

 are red, the rest of the legs being piceous. 



8. Mutilla confusa. (Tab. XIII. fig. 8, $ .) 



Ferruginea ; antennis nigris, basi late rufa ; abdomine nigro, segmento 2° albo 3-maculato. $ . 

 Long. 6 millim. 



Eab. Panama, Volcan de Chiriqui 2500 to 4000 feet (Champion). 



Head considerably wider than the thorax, coarsely punctured ; sparsely covered with 

 fuscous hairs on the top, the lower part with white hair. The eyes prominent, mode- 

 rately large, reaching nearly to the top of the head, which is considerably and roundly 

 narrowed behind them. The scape of the antennae shining, sparsely punctured and 

 haired, grooved above ; the flagellum covered with a microscopic down ; the third joint 

 one half longer than the fourth and narrowed at the base ; the four basal joints are 

 reddish, the others black. The thorax is narrowed and rounded at the base, wider at 

 the apex, the apex of the pronotum arcuate ; above coarsely punctured ; the meso- 

 pleurae shining, impunctate ; the median segment with a rather steep, rounded slope to 

 the apex. The upper part of the thorax with long black hairs ; the lower part of the 

 pleurae with a silvery pubescence. The basal segment of the abdomen short, becoming 

 gradually dilated towards the apex, semiperpendicular, shining, impunctate ; a stripe 

 of silvery-white hair on each side at the apex. The second and following abdominal 

 segments coarsely alutaceous ; the second segment with black, the other segments with 

 longer white hairs ; at the base of the second segment are two oval white marks, and on 

 the apex are two white lines with an oval mark between them ; on the following three 

 segments are white marks, which form a continuous line. The pygidium is fringed 

 laterally with long dark fuscous hairs. The second ventral segment rather strongly 



