380 HTMENOPTEEA. 



Hob. Panama, Volcan de Chiriqui 2000 to 3000 feet {Champion). 



Antennae 26~jointed ; the scape testaceous, the apical seven joints white, the rest 

 blackish ; covered with a close microscopic pile. Head shining ; impunctate, except the 

 face which is closely, but not coarsely or strongly, punctured ; bearing some scattered 

 hairs ; the face testaceous, the rest black with a faint fuscous tint ; mandibles tes- 

 taceous; palpi long, white. Thorax black; the prothorax in front suffused with 

 fuscous; mesonotum aciculated; prothorax closely punctured; mesopleurae obliquely 

 striated in front, the rest shining, impunctate; metathorax coarsely longitudinally 

 punctured, and with six longitudinal keels down the metanotum, the outermost keel but 

 one bearing, at the top and bottom of the apical slope, two teeth, of which the apical one 

 is the longest and sharpest. Abdomen not much longer than the head and thorax 

 together ; petiole curved, a little more than half the length of the rest of the abdomen, 

 closely punctured, and with two stout keels above and a keel also on either side, the 

 side below the keel being hollowed ; the other segments shining, impunctate ; the 

 ventral and apical segments suffused with testaceous. Ovipositor scarcely so long as 

 the abdomen ; the sheaths pilose, obscure testaceous, black at the apex ; the terebra 

 ferruginous, the extreme apex black. Wings not much longer than the head and 

 thorax united; light fuscous, darker at the base, the nervures at the base and the 

 stigma fuscous, the nervures beyond the stigma pallid ; the transverse humeral nervure 

 received distinctly in front of the transverse basal nervure ; the second cubital cellule 

 on the lower side nearly as long as the third. The four anterior legs testaceous ; the 

 middle femora suffused with fuscous ; the hind coxae, except at the apex, and the greater 

 part of the hind femora, blackish ; the hind tibiae and tarsi testaceous ; the hind coxae 

 finely punctured. 



Differs from the other known Central- American species in the vertex not being striated ; 

 the antennae shorter ; the second cubital cellule longer ; and the metathorax 

 reticulated. 



b. Vertex striated ; transverse humeral nervure interstitial ; second cubital cellule 

 much shorter than the third; metathorax aciculated. 



1 (2) . Second segment and the base of the third not striolated, the metanotum 



with three arese, the ovipositor shorter than the abdomen, the hind 

 femora and tibiae testaceous, the wings hyaline ; petiole broad, shorter 

 than the hind femora, dilated gradually towards the apex omaticornis. 



2 (1). Second segment and the base of the third longitudinally striolated, the 



metanotum without area?, the ovipositor longer than the body, the hind 

 femora and tibiae black, the wings fuscous ; petiole longer than the 

 hind femora, narrow fu 



