272 HYMENOPTEEA. 



silvery-white hair. The eyes large ; the head not much narrowed behind them. The 

 scape of the antennae bearing white hairs ; the third joint twice the length of the 

 fourth. The thorax not much narrower than the head and not twice its length ; the 

 sides straight, not narrowed towards the apex, which has a semiperpendicular slope, 

 rounded, the centre truncated ; above coarsely rugosely punctured ; the pro- and meso- 

 pleurae smooth, impunctate, glabrous ; the fore part of the thorax above with some 

 black hairs. The sides of the second abdominal segment coarsely punctured, its base 

 with some long black hairs ; the rest of the abdomen sparsely covered with pale hairs ; 

 the pygidium thickly covered at the sides with long fulvous hair. The femora sparsely, 

 the tibiae and tarsi thickly, covered with long glistening white hairs; the calcaria 

 white ; the tibial spines stout, fulvous. 



Some specimens of what are probably a variety, from Bugaba, Volcan de Chiriqui, 

 and Caldera (Champion), differ from the type in having the lines on the second 

 abdominal segment continued to the end of the segment. I can find no structural 

 difference between them; but the variety is smaller in size — varying from 5*5 to 

 7 millim. 



14. Mutilla clonia. 



Long. 6 millim. <j> • 



Eab. Guatemala, Pantaleon 1700 feet (Champion). 



Similar in coloration to M. centralis, except that, in addition to the knees, the 

 femora are broadly black at the apex, and the breast and the lower part of the pleurae are 

 black ; the abdominal markings are pale fulvous, not clear white ; the median segment 

 has a broad black mark ; and the pygidium is ferruginous. 



The head wider than the thorax, rugosely punctured ; the top with long fuscous 

 hair, the lower part with the hair shorter and silvery; the eyes large, prominent, the 

 head obliquely narrowed behind them. The five basal joints of the antennae are 

 ferruginous ; the scape with some white hair ; the flagellum with a pale down ; the 

 third joint about one quarter longer than the fourth. Thorax coarsely punctured, 

 sparsely covered with long black hairs ; the sides at the base slightly but distinctly 

 concave ; the median segment with a semioblique slope. The basal segment of the 

 abdomen with a sharp oblique slope, thickly covered with long pale hair, and at the 

 apex there is a fulvous band. The second and following segments alutaceous, except 

 the base of the fifth, which is broadly and finely punctured. At the base of the second 

 segment are two fulvous marks, which do not reach to the middle, and are dilated 

 towards the apex ; the band on the apex is broad and is dilated at the middle and at 

 the sides. The fulvous marks on the following three segments form a continuous band. 

 The pygidium is finely punctured and fringed with long fulvous hair. The ventral 

 segments are fringed with fulvous hair ; the second segment sparsely punctured. The 



