MUTILLA. 281 



costal cellule. The radial cellule is wide, and as long as the first cubital. The first 

 abscissa of the radius is slightly curved and shorter than the apical, which is also 

 curved and almost roundly elbowed at the top. The first transverse cubital nervure is 

 curved widely, the second slightly, the third elbowed near the bottom and at the 

 middle, where the nervures are emitted. The second cubital cellule at the top is 

 shorter than the space bounded by the first transverse cubital and the first recurrent 

 nervures ; the third cellule is wider at the bottom than at the top. The first recurrent 

 nervure is received shortly before the middle, the second in the apical third of the 

 cellules. 



This insect also agrees with M. oajaca ( 6 ), and has, like it, the first cubital cellule 

 as long as the radial ; but the head and thorax in M. oajaca have " scattered pale 

 yellowish pubescence," the median segment has " scattered black pubescence," the 

 abdomen is "finely punctured," the basal segment is "black," the third cubital cellule 

 is " subpentagonal " (in the present species it is really hexagonal), and the hair on the 

 legs is " pale yellowish." 



/ 24. Mutilla vanduara. 



Long. 12-13 millim. <5 . 



Hab. Mexico, Chilpancingo in Guerrero 4600 feet (H. H. Smith). 



Head moderately strongly punctured, the punctures distinctly separated; densely 

 covered with griseous hairs, which hide the sculpture, except on the vertex ; the apex 

 of the clypeus truncate in the middle ; the mandibles ferruginous before the apex, the 

 base densely covered with long white hair. The eyes are large : the head not much 

 developed behind them, and roundly narrowed; the incision wide, oval. The scape of 

 the antennae is densely covered with glistening white hair, its extreme apex ferruginous ; 

 the flagellum is covered with a dull microscopic pile ; the third joint is equal in length 

 to the fourth. The thorax is as wide as the head ; the pronotum punctured and densely 

 covered with a griseous-white pubescence, which is densest at the apex. The meso 

 notum is shining, marked all over with large, elongate punctures ; there are two furrows 

 down the middle ; at the base there is some white pubescence, the rest of it with 

 blackish hair. The tegulse very shining, the inner side at the apex with whitish 

 pubescence ; the apex piceous. The scutellum fiattish, coarsely rugosely punctured, 

 and bearing long white hairs, especially at the apex. The median segment is reticu- 

 lated, and has a gradually rounded slope to the apex ; the base with a dense white 

 pubescence, the rest covered thinly with long pale hair; the basal area elongate, 

 narrowed towards the apex ; there can hardly be said to be a tubercle at its apex. The 

 propleuree rather strongly punctured, covered with a whitish pubescence, the apical 

 depression crenulated throughout. The mesopleurse punctured, but hardly so strongly 

 as the propleuree, densely covered with white hair ; there is a shining depression at the 

 Biol, centk.-amek., Hymenopt., Vol. II., February 1894. 2 oo 



