302 HTMENOPTEEA. 



covered with white hair ; the second segment punctured, but not strongly, covered with 

 fuscous hair ; the hair on the other segments golden. The ventral segments fringed 

 with silvery hair. Legs slender, covered with white hair ; the spines weak ; the 

 calcaria white ; the fringe on the metatarsus white. 



49. Mutilla belus. 



Long. 5 miliim. $ . 



Hal. Panama, David in Chiriqui (Champion). 



Head apparently punctured, but the punctuation hidden by a dense golden pubes- 

 cence, intermixed with long fuscous hairs. Eyes large, not projecting much, reaching 

 nearly to the top of the head, which is well developed behind them and narrow. The 

 scape of the antennae with a distinct curve, sparsely covered with silvery hair ; the 

 flagellum with an obscure pile, the third and fourth joints subequal. Thorax elongate, 

 the sides straight, slightly narrowed towards the apex. The median segment with a 

 gradually rounded slope ; a bluntly conical yellowish tooth near its base ; closely and 

 somewhat strongly punctured all over, and bearing sparse, long, fuscous hairs. The 

 prothorax above and laterally covered with a golden, the breast and metapleurse with a 

 silvery, pubescence. The abdomen longer than the head and thorax united, as broad 

 as the head, rather strongly punctured, and bearing long blackish hair. The first 

 segment broader than long, not dilated towards the apex, depressed at the base, the 

 sides toothed; the base bearing a few longish hairs, the rest of the segment densely 

 covered with silvery pubescence. The second segment has two oblong marks of yellow- 

 golden hair before the middle, the sides have a silvery pubescence, and on the apex is 

 a belt of white pubescence, broadly interrupted in the middle. The third segment is 

 finely punctured, and only bears some long black hairs, except in the middle, where 

 there is a tuft of golden hair. The other segments are densely covered with long 

 golden hair at the apex, the base of each being punctured. The pygidium is smooth, 

 fringed round the edge with long white hair. 



A small ( $ ) variety (?) (4 miliim. in length), from Mirandilla, Guatemala (Champion), 

 has the sides of the mesonotum broadly, and the greater part of the median segment, 

 black ; the hair on the head not so brightly golden in tint ; the second abdominal 

 segment blackish, but with the yellow marks and lines as in the type ; the third and 

 following segments densely covered with golden pubescence, the third segment with a 

 black mark in the centre ; and the pygidium densely covered with golden hair. 



A specimen (?) (4 miliim. in length) from Bugaba, Chiriqui (Champion), has the 

 thorax coloured as in the preceding, except that the black extends quite close to the 

 apex of the median segment ; the second segment wants the yellow spots and has a 

 golden pubescence, the apical white line being browner and uninterrupted ; the other 

 segments are reddish, more or less suffused with fuscous, and they bear some long 



