300 HYMENOPTEKA. 



pubescence down the sides ; the sides of the median segment with a golden pubescence, 

 as well as the pleurae. The median segment has an abrupt rounded slope ; at the top 

 is a projecting plate, with-a tooth in its centre, and at the sides a blunt pale tooth. 

 The pleura? are entirely punctured. The abdomen is a little longer than the head and 

 thorax united, bluntly narrowed towards the apex ; the segments fringed with silvery 

 pubescence ; the first segment broader than long, depressed and toothed at the base, 

 not dilated towards the apex, punctured, and bearing long white hair, and a silvery 

 pubescence at the sides and apex; the second segment punctured at the sides; the 

 pygidium golden, and covered with long pale fulvous hairs; the other abdominal 

 segments with long black hairs. The tibiae and tarsi covered with white hair; the 

 tibial spines slender. 



" 46. Mutilla triangularis. (Tab. xm. fig. 27, $ .) 



Long. 4*5-7 millim. • $ . 



Hah. Panama, Bugaba (Champion). 



Dark ferruginous ; the vertex, the sides of the mesonotum, and of the median segment 

 broadly, and a large triangular mark on the second abdominal segment, black ; the 

 other abdominal segments covered with golden pubescence ; the antennae ferruginous, 

 the apical joints black ; the legs bright reddish-testaceous. The head closely punc- 

 tured, covered with a golden-fulvous pubescence and with golden hair ; the occiput 

 and the vertex sometimes blackish ; the vertex with a smooth keel running down it. 

 The eyes large, the head obliquely narrowed behind them. The scape of the antennas 

 covered with fulvous hair. The thorax narrower than the head, more than twice its 

 length, not contracted in the middle; the apex roundly narrowed behind the tubercle, 

 which is stout, blunt, and slightly curved ; moderately strongly punctured all over, the 

 punctures shallow and distinctly separated. The basal segment of the abdomen short, 

 broader than long, not dilated towards the apex, smooth, and bearing some long white 

 hairs ; the second segment punctured like the thorax, but, if anything, more strongly ; 

 the hair on the other segments dense, hiding the sculpture entirely ; the pygidium with 

 the golden hair longer. The legs with a sparse covering of white hair; the tibial 

 spines slight ; the calcaria white ; the metatarsal hair-fringe fulvous. The hair on the 

 head and thorax is long and sparse, and pale fulvous; on the abdomen it is thicker 

 and shorter. 



The head may be entirely golden, or with more or less black on the top ; the sides 

 of the second abdominal segment are sometimes infuscated. 



* 47. Mutilla pantaleonae. (Tab. XIII. fig. 25, $ .) 



Long, fere 7 millim. $ . 



Hab. Guatemala, Pantaleon 1700 feet (Champion). 



