114 HYMENOPTEKA. 



d . Eyes slightly converging beneath. Hinder ocelli separated from the eyes by fully 

 the length of the third antennal joint and by a somewhat less distance from each other. 

 Clypeus in the middle convex ; the apex rounded, projecting, and without teeth. The 

 hair on the head is long and griseous; the punctuation very coarse. Mesonotum and 

 mesopleurae very coarsely punctured ; the propleurae shining, impunctate ; the heart- 

 shaped area of the median segment not clearly denned, strongly punctured ; the median 

 segment bearing large, deep, roundish punctures. Abdomen strongly punctured ; pygi- 

 dial area shining, marked with some large punctures, slightly narrowed at the base, the 

 apex almost transverse. The face, two lines on the pronotum, the tegulae in front, the 

 metanotum, two marks on the median segment, a broad band on the first and third, 

 and a narrow band on the fourth to the sixth abdominal segments, a mark on the basal 

 ventral segment, and a complete band on the second and third, the four anterior tarsi, 

 the four anterior tibiae in front, and the posterior tibiae at the base, clear yellow. 

 Wings almost hyaline, the cubital and radial cellules clouded ; stigma sordid fulvous ; 

 the recurrent nervure in the second cubital received before the middle, near the basal 

 third. Antennae for the greater part rufo-testaceous beneath. 



7 10. Cerceris Chiriquensis. (Tab. VII. figg. 8, clypeus, $ ; 8a,pygidium; 8 b, 

 hypopygium.) 



Clypei media pars convexa, margine apicali depresso ; oculorum margines interni fere paralleli ; area cordi- 

 formis lseva, fere punctata; orbitis oculorum, scutello, metanoto, segmento mediali, petiolo, apice abdo- 

 minisque 3° segmento, flavis ; alis fere byalinis, antice fumatis. 



Long. 12 millim. 



Hab. Panama, Volcan de Chiriqui 2500 to 4000 feet (Champion). 



Eyes a little converging beneath. Ocelli separated from the eyes by the length of 

 the third antennal joint and from each other by the length of the fourth, almost 

 forming a triangle. Face convex, projecting at the apex into a snout; from it the 

 clypeus retreats towards the direction of the base of the legs, and is slightly concave in 

 the middle. Antennal tubercle elongate, compressed, acute. Head above coarsely 

 rugose, below the antennae aciculate, with scattered punctures. Third antennal joint 

 one half longer than the fourth. Front and vertex with long fuscous hair; face, 

 cheeks, and clypeus with a silvery pubescence. Thorax rugosely punctured, the 

 punctures running into reticulations on the mesonotum ; scutellum with scattered 

 punctures; the heart-shaped area of the median segment shining, impunctate, its 

 sides foveolate; the oblique furrow on the mesopleurae distinct, deep, but not very 

 wide. Median segment with a gradual rounded slope. Petiole wider than long, 

 marked with scattered punctures ; the other segments with a moderately strong punc- 

 tuation at the base, but it becomes weaker towards the apical segment. Pygidial 

 area widening out at the middle ; at the base transversely rugose ; the rest with 

 clearly-separated striae ; the apex transverse ; the sides aciculate, bearing large punc- 



