MORGAN HEBARD 153 



The similarity in general type of antennae, wing and limb 

 coloration and small meso-caudal tubercles of the seventh and 

 eighth dorsal abdominal segments in the female, indicate that the 

 very different generally appearing P. robushim, here described, 

 probably belongs to the same group in the present genus. Males 

 of these species must be obtained before this can be definitely 

 determined. 



Type. — 9 ; La Palmeta, Santander, Colombia. Elevation, 7500 

 feet. July 15 to 20, 1916. (M. A. Carriker Jr.) [Hebard Col- 

 lection, Type No. 468.] 



Size large, form moderately robust. Head distinctly longer than wide; occi- 

 put smooth, except for a few, very minute microscopic nodes which occur in the 

 greatest numbers caudad of the antennal sockets. The three ocelli small, not 

 closely crowded, forming the apices of a triangle, the sides of which are slightly 

 longer than its base caudad, the surface about each ocellus distinctly raised, the 

 depression before the median ocellus deep. Antennae with each joint very 

 feebly enlarged at apex, except the elongate distal joints which are subdivided 

 into short segments. Pronotum smooth, except for scattered, very minute, 

 microscopic nodes. Mesonotum slightly longer than pronotum, with surface 

 nodulose, bearing (three to five) slender, blunt tubercles on each lateral margin 

 and three pairs of similar projections proximo-laterad on the dorsum. Teg- 

 mina normal for genus, produced moderately at sutural angle; shoulders 

 strongly compressed, with outline flattened convex; distal margin of tegmen 

 weakly concave, oblique to rather broadly rounded angle at sutural margin, 

 that margin broadly convex. Wings fully developed, extending to base of 

 ninth dorsal abdominal segment. Seventh dorsal abdominal segment produced 

 in a small median tooth just before the caudal margin; eighth with a similar but 

 slightly more decided tooth mesad on the caudal margin; ninth with a medio- 

 longitudinal carina distinct distad, distal margin ol)tuse-angulate emarginate; 

 supra-anal plate minute. Styles short, straight, tapering to blunt apex. Oper- 

 culum broad lanceolate, apex acute. Cephalic femora with cephalic flexure 

 very weak; all of the limbs with the four carinae decided. Tarsi moderately 

 heavily supplied with hairs on ventral surfaces, the rather large distal pulvilli 

 of the four proximal joints not concealed. Moderate arolia present. 



Measurements {in millimeters) 



Q Length of Length of Length of Length of Length of Length of 



+ body pronotum mesonotum tegmen wing cephahc femur 



Type 75 5.4 5.8 8.7 55.5 18.8 



Paratype 72 5.2 5.5 9.1 54 18.6 



Type. — Length of dorsal surface of head, 4.3; median femur, 14.8; caudal 

 femur, 20.3 mm. Width of head, 4.1; pronotum, 3.8; mesonotum, 3.8; dorsal 

 field of tegmen, 4.8 mm. 



Head saccardos olive; occiput microscopically marked with four longitudinal 

 l)lackish lines; tw'o broad postocular bands of ochraceou.s-buff on each side, 



TR.\NS. AM. ENT. SOC, XLV. 

 5 



