ALTSIA. 415 



Antennae 46-jointed, scarcely pilose ; mandibles, eyes, ocelli, and palpi black. Meta- 

 notum with a stout keel in the centre, the base marked with testaceous ; the apex 

 semivertical ; rugosely punctured. Petiole strongly longitudinally striolated. Wings : 

 the transverse pobrachial nervure received in front of the transverse basal nervure; 

 the recurrent nervure interstitial ; the second transverse cubital nervure three fourths 

 of the length of the first ; the first abscissa of the cubitus sinuated, the cubitus becoming 

 obsolete a little beyond the second cubital cellule. 



B. Anal nervure issuing from the upper part of the posterior discoidal cellule and not 

 angled at the base, it being nearly on a level with the prcebrachial nervure. Second 

 cubital cellule not more than twice as long as wide, much narrowed at the apex. 

 Transverse humeral nervure not interstitial. Petiole broad at the base, generally 

 broader than long. 



a. Antennas over 50-gointed, the third joint not shorter than the fourth. Apex of the 

 metanotum not vertical, smooth, impunctate. Petiole not subsessile, not longitudi- 

 nally striate ; the second abdominal segment impunctate. Badial nervure issuing 

 from near the apex of the stigma. 

 / 



6. Alysia melanocephala. 



Ferruginea, nitida, antennis, capite pedibusque nigris ; alis nigro-violaceis. 3 $ . 

 Long. 8 millim. ; terebra 5 millim. 



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



Antennae 61 -jointed, densely microscopically pilose, the scape shining; nearly twice 

 the length of the body. Head and body shining, impunctate, the face sparsely pilose. 

 Metanotum with a keel down the centre. Abdomen a little longer than the head and 

 thorax united, the sheaths of the ovipositor black, sparsely covered with longish hair. 

 Legs (especially the tibise and tarsi) pilose. Wings : the first transverse cubital nervure 

 curved, elbowed a little before the middle and received in the radial nervure at a little 

 distance from the stigma ; the first recurrent nervure nearly interstitial ; the transverse 

 pobrachial nervure received about the same distance past the transverse basal nervure 

 as the first cubital is from the stigma. 



N Mr7. Alysia bugabensis. 



Nigra, nitida, abdominis segmentis l°-4 m rufis ; alis fuscis. 3 . 

 Long. 8 millim. 



Eab. Panama, Bugaba 800 to 1500 feet (Champion). 



Apex of the mandibles strongly striated. Metathorax (especially above) inclining to 

 piceous-red, and with a very distinct bifid keel down the centre, the bifurcation taking 



