MUTILLA. 279 



gibbous, coarsely punctured, and covered with long pale hair. The median segment 

 reticulated ; there is a thick mass of white hair at the base, which extends obliquely 

 to the sides ; the rest of the segment with a short white pubescence, and with long 

 pale hair ; the apex has an oblique slope, and at its top in the middle is a short 

 roundish shining tubercle. The propleurae are strongly punctured in the middle ; the 

 mesopleurse densely covered with white hair, hiding the sculpture; the apex of the 

 metapleurEe reticulated. The basal segment of the abdomen punctured, the base 

 strongly toothed; black, except at the apex, sparsely covered with long white hair. 

 The second segment at the sides with scattered very minute punctures; the apex 

 thickly fringed with rufous hair. The other segments at the base finely and closely 

 punctured, and covered with rufous hair. The pygidium punctured, except down the 

 middle, which terminates in two short stout keels, enclosing a depressed triangular 

 area. The first ventral segment broadly keeled, depressed in the middle ; a small 

 round fovea on either side at the base, and with some large round punctures down the 

 sides. The second ventral segment with scattered punctures; the others with finer 

 and closer punctures, and fringed with short fulvous hair. The hypopygium punctured 

 laterally, covered with fulvous hair ; the apex projecting, in the middle raised ; the 

 sides terminating in stout blunt teeth. Legs covered with rather long white hair. 

 The wings are lighter-coloured at the base, and have white lines throughout ; the 

 radial cellule is wide and does not extend much beyond the third cubital ; the basal 

 and apical abscissae of the radius are both curved, the former being a little the shorter 

 of the two. The first transverse cubital nervure is curved at the base ; the second 

 cubital cellule at the top is somewhat shorter than the space bounded by the first 

 transverse cubital and the first recurrent nervures ; the third cubital cellule at the top 

 is a little shorter than at the bottom ; the second transverse cubital cellule is roundly 

 elbowed in the middle, the third broadly curved, but with the upper part straight. 

 The transverse median nervure is received distinctly in front of the basal nervure. The 

 first recurrent nervure is received shortly beyond the middle, the second in the apical 

 fourth of the cellules. 



The male of M. oajaca as described by Blake agrees with this species in coloration, 

 and almost in size ; but the structure of the pygidium is not mentioned by him, nor 

 does he describe any peculiarity about the face. The head and thorax of M. oajaca 

 are described as being clothed with "scattered pale yellowish pubescence," the 

 pubescence on the metathorax (median segment) " black," and there is no mention of 

 a tubercle ; the first cubital cellule is said to be about as " long as the marginal " 

 (radial), which is certainly not the case with our species. 



^ 23. Mlltilla COnnexa. (Tab. XIII. fig. 21, 6 organ.) 

 Long. 13-14 millim. <$ . 



Hab. Panama, Bugaba 800 to 1500 feet (Champion). 



