316 The Philippine Journal of Science ioi7 



half length of second; second cubital cell about twice as long 

 as wide, first transverse cubital oblique, second vertical and 

 decolored; cubital vein becoming obsolete shortly beyond second 

 cubital cell; recurrent vein joining cubitus a short distance 

 before first transverse cubitus, intervening vein decolored ; paral- 

 lel vein inserted at lower third, but appearing interstitial by 

 reason of the posterior vein being entirely obsolete beyond 

 second discoidal cell; transverse median vein interstitial with 

 basal ; radial vein in hind wing at one third of its length strongly 

 and suddenly curved toward costa, beyond this obsolete; nervel- 

 lus oblique, slightly curved on upper half. 

 Luzon, Laguna, Los Baiios (coll. Baker). 



Genus RHOGAS Nees 



The numerous Philippine species of this well-known genus will 

 be described in a subsequent paper. 



Genus PSEUDOGYRONEURON novum 



Eyes very large ; malar space long, due to a strong narrowing 

 of mouth. Vertex back of ocelli of medium length. Antennae 

 longer than entire body, scape short and swollen, funicle broad 

 and three fourths length of scape, flagellar joints more than 

 twice as long as wide. Maxillaiy palpi of great size, reaching 

 to end of metanotum, third to sixth joints strongly modified, 

 third swollen, fourth, fifth, and sixth flattened. Labial palpi with 

 third joint elongate and flattened. 



Scutellum quadrifoveate anteriorly. Metanotum with a nar- 

 row, lanceolate, high-rimmed median area and with strong, blunt 

 prominences on the posterior lateral areae; spiracles small and 

 round. Disk of mesopleura with a short, oblique, noncrenulate 

 furrow. 



Radial cell reaching apex of wing. Radial vein inserted at 

 basal two fifths of the length of the long, rather narrow, stigma. 

 Thickened first abscissa of radius about half length of second; 

 second cubital cell nearly twice as long as broad, not narrowed 

 apically, both transverse cubiti more or less oblique. Recurrent 

 vein inserted a short distance from apex of first cubital cell. 

 Submedian cell a little longer than median. Parallel vein in- 

 serted at lower third. Radius of hind wings curved toward 

 costa. Type, Pseudogijroneuron mindanaensis sp. nov. 



Pseudogyroneuron mindanaensis sp. nov. 



Stramineous, with piceous shading on lateral lobes of meso- 

 notum anteriorly, on anterior portions of mesopleurae, on pros- 



