CHEYSIS. 465 



10. Chrysis rastellum. 



Chrysis rastellum, Brulle, Nat. Hist. Ins. Hymen, iv. p. 32 1 . 



Hob. Mexico 1 . 



v. Apical margin of the third abdominal segment with six teeth. 



11. Chrysis pilifrons. (Tab. XX. figg. 13, 13 a.) 



Head and thorax dark green, mixed with dark purple ; the abdomen of a brighter 

 green, marked with broad purplish stripes across the segments. Head and thorax 

 uniformly covered with large (comparatively) round punctures ; the pleurae with much 

 deeper punctures ; first abdominal segment with the punctures larger and more widely 

 separated than on the second and third segments. Basin of face punctured laterally, 

 the middle almost impunctate ; the sides covered with long white hair. The rest of 

 the head and thorax sparsely covered with long fuscous hair; the abdomen glabrous, 

 except towards the apex. There is a i — i-shaped keel below the ocelli. The base of 

 the first abdominal segment is broadly, but not deeply, excavated (not divided into 

 three lobes). The teeth on the third segment are equal in size, and almost equally 

 distant one from another ; the lateral margin is straight, except that it bulges out at 

 the first tooth ; the pits are indistinct, forming mere ill-defined depressions in the furrow, 

 which is broad and moderately deep ; the apex of the segment is impunctate or nearly 

 so. Antennae black, the basal three joints green. Wings infuscated, lighter towards 

 the apex. 



Length 12 millim. 



Hob. Panama (Boucard). 



12. Chrysis proxima. (Tab. XX. figg. 12, 12 a.) 



Similar in colour and sculpture to the preceding (C. pilifrons), but smaller (8-9 

 millim.). The basin of the face much more densely covered with white hair (only the 

 extreme centre being bare) ; there is no transverse keel above it, but a O-shaped keel 

 starts from near the eyes above the depression and encloses the lower ocellus. The 

 lateral margin of the third abdominal segment has a distinct curve, and the outermost 

 tooth is not placed at the extreme edge, as in C. pilifrons, but at a little distance from 

 it ; the teeth are smaller and more irregularly placed ; the incisions are unequal — the 

 central is the largest ; there is no distinct groove or pits, although they are very faintly 

 indicated ; and the base of the abdomen is distinctly trilobate. 



Hab. Panama (Boucard). 

 biol. centr.-amer., Hymenopt., April 1888. 3 oo 



