131 



current nervure is received in the middle; the transverse median nervure 

 is almost interstitial. 



Porizonini. 



3976 Aneuclis ( ]) erj throstomus sp. no v. 



Black, shining; apex of clypeus, autennal scape and legs rufo-fulvous, 

 as are also the third and following segments of the abdomen and the 

 palpi. Wings hyaline, iridescent, the nervures and stigma black. Feir.ale. 

 Length 5 mm.; terebra 3 mm. Taken during July in Ormsby county, 

 Nevada. 



Head, except the clypeus, closely distinctly punctured; the scutellum 

 more closely punctured than the mesonotum; the metanotum still more 

 strongly punctured, its basal areae coarsely rugosely punctured, the pos- 

 terior punctured above, transversely striated below; there are two clearly 

 defined areae longer than broad, and of equal width throughout in the 

 center at the base, and there are three on the apical slope; outside is a 

 large triangular area, not clearly closed behind. Pleural suture large, wide, 

 crenulated. Abdomen smooth and shining, the sides of the petiole on the 

 narrowed basal part closely stoutly longitudinally striated. Transverse 

 cubital nervure about four times longer than thick, transverse median 

 nervure received shortly beyond the transverse basal. 



Orona gen. nov. 



Abdomen petiolated, the spiracles placed very shortly behind the mid- 

 dle of the first segment, the second segment triangular, becoming gradua- 

 lly widened from the base to the apex, the third segment very large and 

 longer than wide. Ovipositor short. 



Antennae stout, 20-jointed, the last joint as long as the preceding two 

 united and thicker than they. Eyes moderately large, ovate; there is a 

 distinct malar space. There are four clearly defined areae on the meta- 

 notum, a basal central, longer than wide and slightly narrowed towards 

 the base, a large central apical, and a triangular smaller one on either 

 side. The transverse cubital nervure is very short, the recurrent nervure 

 is received considerably beyond it; the second discoidal cellule is closed, 

 the transverse median nervure is interstitial. Palpi short. Metanotal 

 areae aciculated. Parapsidal furrows only indicated at the base. Hind 

 tarsi nearly as long as the tibiae. Metathoracic spiracles placed near to 

 the pleural keel. Antennal middle joints longer than wide. 



In Dr. Ashnead's table (Bull. T^ S. Nat. Mus., XXTIl,) this genus 

 would come in near Epidathmus and Diaxparsis, from both of which 

 it may be known by the 20-jointed antennae. Characteristic, probably, 

 are the clearly separated abdominal first segment, triangular second, ami 

 large third. 



.S968 Orona petiolaris sp. nov. 



Black, shining, the legs dark rufous, the hind tibiae and tarsi alnujst 



