162 . HYMENOPTEKA. 



Sab. Mexico, DOs Arroyos and Xucumanatlan in Guerrero, Atoyac in Vera Cruz 

 (H. H. Smith); Guatemala, San Geronirno (Champion). 



Black ; the head and thorax with a decided greenish hue, and densely covered with 

 a close golden pile ; the four or five basal joints of the antennae and the legs (except 

 the coxae and trochanters) reddish-testaceous, the tips of the tarsi blackish \ wings 

 hyaline, somewhat suffused with fuscous. Head wider than the thorax, slightly 

 convex in front and behind ; the clypeus broadly rounded at the apex ; the ocelli 

 almost forming a triangle, the hinder ones separated from the eyes by a greater 

 distance than they are from each other ; the eyes curved. Antennae rather long ; the 

 third joint about one quarter longer than the fourth. Pronotum subarcuate behind, 

 the sides subconvex, slightly narrowing from the apex to the base. Scutellum finely 

 punctured. Median segment with a gradually rounded slope, obscurely transversely 

 striated. Abdomen shining, subpetiolate ; pruinose, especially on the apical segments, 

 these latter having a brownish bloom ; pygidium shining, impunctate. Legs moderately 

 elongate ; the coxae bearing a dense greenish or golden pubescence ; the long spur of 

 the hind tibiae not reaching to the middle of the metatarsus. Wings : the second and 

 third cubital cellules subequal at the top, the third somewhat longer at the bottom ; 

 the first recurrent nervure received a little beyond the middle, the second nervure 

 received slightly beyond the basal third ; radial cellule angled where the transverse 

 cubital nervures are received, the apex acute. 



P. subvirescens has the general coloration of P. cressoni, including " the beautiful 

 green reflection " of the thorax ; but the first-mentioned species has the anterior margin 

 of the clypeus sinuous, the antennae testaceous (dusky at the tip), the median segment 

 oblique, and the base of the femora black. P. auripilis also agrees in some respects 

 with P. cressoni, but it has the head and thorax black and the abdomen covered with 

 pale golden-sericeous pubescence. 



2. Pseudagenia curvinervis. (Tab. X. fig. 7, thorax.) 



Long. 12 millim. 



Hab. Panama, Bugaba {Champion). 



Very nearly related to P. cressoni, and almost identical in coloration, but differing 

 from it as follows : — The legs are entirely fulvo-testaceous, except the apices of the 

 tarsi ; the golden pubescence on the clypeus and cheeks is much denser, brighter, and 

 more clearly separated from the rest of the head ; the mandibles are rufo-fulvous (not 

 black) ; the pronotum is bright golden, and behind, instead of forming a shallow 

 uniform curve, it is angled in the middle ; the wings are yellower in hue ; the first 

 transverse cubital nervure is not oblique and straight, but bent from the base to the 

 apex — bow-shaped ; the first recurrent nervure is received in the middle of the cellule. 



