334 HYMENOPTERA. 



are densely covered with golden pubescence ; the head is entirely black ; and only the 

 basal part of the pleurae is ferruginous. 



^38. SphaBrophthalma janira. 



Long, fere 9 millim. $ . 



Hab. Mexico, North Yucatan (Gaumer): • • * 



Similar in general form and coloration to S. amphissa, but differing essentially from it 

 in the thorax not being much longer than the head (in S. amphissa it is nearly twice 

 as long) ; the propleurae are deeply excavated in the middle and at the tip of the apex 

 project into a blunt tooth ; the incision on the sides of the mesonotum is much less 

 deep; the eyes project beyond the hind part of the head ; and the third antennal joint 

 is shorter compared to the fourth. 



Head coarsely punctured, the top covered with golden pubescence, the other parts 

 bearing silvery hair; the part behind the eyes quite twice their length, becoming a 

 little dilated posteriorly (but still not extending beyond the eyes) ; the occiput trans- 

 verse; the sides broadly rounded; below the eyes the colour is ferruginous; the 

 mandibles are for the greater part ferruginous. The scape and the base of the 

 flagellum are more or less ferruginous ; the third joint about one-quarter longer than 

 the fourth. The mesonotum is coarsely punctured ; the middle with a large patch of 

 silvery pubescence, the base rounded ; from the projecting part of the pleurae the 

 mesonotum becomes narrowed slightly to the apex, and at the tubercle it retreats 

 inwardly a little ; the median segment has an oblique slope. The pleurae are ferru- 

 ginous, punctured ; the propleura deeply excavated in the middle, and at the apex 

 above it projects into a large stout triangular tooth, which is very distinct when viewed 

 from above. The abdomen is closely punctured ; on the second segment are two large 

 round orange marks ; the apical segments are pale ferruginous at the apex and fringed 

 with pale hair; the pygidium is entirely pale ferruginous and shining. The basal 

 ventral segment is ferruginous, the keel a little oblique, and straight throughout ; the 

 other ventral segment punctured and more or less ferruginous. The legs are covered 

 with white hair ; the apices of the tarsal joints with fiery-ferruginous hair ; the tibial 

 spines rather long and slender. 

 / 



^ 39. Sphserophthalma panamensis. 



Long. 7 millim. $ . 



Hab. Panama, Bugaba (Champion). 



Easily known from the foregoing species, S. cleonica and S. janira, by the part of 

 the head behind the eyes being rather obliquely narrowed and not equalling their 

 diameter, and by the very distinctly roundly convex occiput. 



Head, if anything, wider than the thorax, somewhat coarsely and strongly punctured ; 



