146 HYMENOPTEKA. 



edges obliquely truncated, not acute. There is a wide, rather deep, depression in the 

 anterior half of the mesonotum. Median segment furrowed in the centre at the base, 

 the apex transversely striolated. Mesopleurae coarsely longitudinally punctured, 

 striolate posteriorly ; metapleurse excavated, finely striolated. Abdomen finely punc- 

 tured, shining; the segments at the apex fringed with golden-fulvous pubescence, 

 which is especially long and thick oh the penultimate. Pygidial area shining, black, 

 marked with large, clearly separated punctures ; the sides furrowed. Legs densely 

 pilose ; tibiae spinose, the long spine reaching to the middle of the metatarsus. Trans- 

 verse cubital nervure received beyond the middle of the radial cellule. The scape of 

 the antennae, an interrupted line on the pronotum, the tubercles, a mark on either side 

 of the scutellum, the metanotum, the base of the mandibles, and the knees and tibiae 

 in front, clear yellow ; the abdominal segments 3-5 almost entirely yellow ; the tarsi 

 and tegulae rufo-testaceous. 



The male similar to the female, but with the sixth joint of the antennae deeply 

 curved. 



^6. CrabrO Centralis. (Tab. IX. figg. 6, $ ; 6 a, 6 organ; 6 b, d" antenna.) 



Niger, punctatus, capite dense fulvo-piloso ; tibiis anticis, abdominis segmentis 2°-6 m flavis ; alis leviter f umatis, 



nervis flavis. $ . 

 Long. 10 millim. 



Hdb. Mexico, Atoyac in Vera Cruz (H. H. Smith) ; Guatemala, San Geronimo 

 (Champion) ; Panama, Bugaba (Champion). 



Head densely covered with a fulvous, the lower orbits and clypeus with golden, 

 pubescence, closely punctured ; the hinder (and upper) edge of the eyes situated 

 slightly in front of a line drawn across the middle of the head. Ocelli in a curve, the 

 hinder ones opposite the end of the eyes, separated from each other by a somewhat less 

 distance than they are from the eyes. Clypeus convex in the middle. Eyes beneath 

 separated by about the length of the second and third antennal joints united. Thorax 

 densely pubescent, closely punctured. Edge of the pronotum hardly transverse, curving 

 backwards laterally. Median segment at the top transversely rugosely punctured ; the 

 apex transversely striolate ; at the base furrowed in the centre ; the basal area defined 

 by curved furrows. Pleurae rugosely punctured. Abdomen shining, finely punctured ; 

 pygidial area hollowed and turned up at the apex, punctured. Transverse cubital 

 nervure received beyond the middle of the cellule. The long spur on the hind tibiae 

 does not reach the middle of the metatarsus. 



A smaller species than C. guerrerensis ; otherwise differing in having the second and 

 apical segments yellow ; the metanotum without yellow ; the basal area of the median 

 segment defined laterally by furrows ; the hinder ocelli separated from each other by 

 a rather less distance than they are from the eyes. 



