MUTILLA. 



307 



top is nearly one fourth longer than it is at the bottom ; the third transverse cubital 

 nervure bulges out into a sharp angle in the middle, from which runs a nervure half- 

 way across. The first recurrent nervure is received in the apical third, the second 

 beyond the apical fourth of the cellule. 



V 55. Mutilla megSBra. 



Long. 8 millim. J . 



Hab. Mexico, Hacienda de la Imagen in Guerrero 4000 feet (H. H. Smith). 



The head coarsely rugosely punctured ; below the ocelli covered (but not very thickly) 

 with long white hairs. The eyes distinctly oval, with the incision wide ; the head not 

 much narrowed behind them. The scape of the antennae bearing white hair and punc- 

 tured ; the flagellum covered with a fuscous pubescence ; the third and fourth joints 

 subequal. The thorax very coarsely, rugosely punctured ; the base of the prothorax 

 transverse, the edges slightly projecting. The tegulse are moderately large, do not 

 project behind, and are ridged at the sides ; the mesonotum at their base is widely and 

 deeply depressed. The median segment short, irregularly and widely reticulated ; at 

 the base in the centre is a V-shaped depression ; the apex is sharply oblique. The 

 pleurae are coarsely, rugosely punctured. The entire thorax is covered (but not thickly) 

 with white hair, which is longer on the median segment than elsewhere. The first 

 segment of the abdomen is wider than long, short, coarsely punctured ; the base 

 depressed, the sides projecting ; covered sparsely with white hair. The second segment 

 is strongly punctured ; its apex, and also that of the following segments, fringed broadly 

 and densely with golden-fulvous hair. The pygidium rather strongly punctured, and 

 only bearing a few white hairs towards the apex. The tibiae and tarsi densely covered 

 with white hair ; the calcaria white. The basal and apical abscissa? of the radial 

 nervure about equal in length ; their base not much wider than the apex. The base 

 of the radial cellule is a little wider than the apex ; the second cubital cellule at the 

 top is about the length of the space bounded by the first recurrent and the second 

 transverse cubital nervures ; the first and second recurrent nervures are received in the 

 apical third of the cellules. The third cubital cellule is narrower at the bottom than 

 at the top. 



•h- The abdominal segments with silvery pubescence; the pubescence on the second 

 segment forming a belt, that on the other segments sparse. (Species 56-62.) 



The five species I have here described as new may be separated as follows:— 



1 (8) . The tegulse not keeled. 



2 (3) . The base of the pronotum rounded blakei. 



3 (2) . The base of the pronotum transverse. 



4 (5). The hypopyghim white; the centre of the clypeus not raised, and 



thickly covered with hair astuta. 



2 HE 2 



