1918.] NATURAL SCIENCES OF PHILADELPHIA. 215 



are particularly disposed along the longitudinal veins. Head with 

 the greatest width across the eyes subequal to the greatest width at 

 the caudal margin of the pronotum; when seen from the side the inter- 

 ocular section of the head is regularly declivent from the narrowly 

 rounded occiput, interantennal protuberance broadly rounded when 

 seen in the same view, when seen from the dorsum subcompressed; 

 hairs on the rostrum decurved: eyes with axis subvertical, in basal 

 outline Inroad ovoid, prominent when seen from the dorsum, slightly 

 projecting cephalad : antennae surpassing the body in length, proximal 

 joint large, moderately deplanate: palpi with the third and fourth 

 joints slender, the third subequal in width; the fourth faintly expand- 

 ing distad, slightly shorter than the third; fifth joint reversed pyra- 

 midical, about one and one-half times as long as the distal margin, 

 which is straight truncate, the joint slightly flattened. Pronotum 

 transverse, its greatest caudal width nearly equal to one and one-half 

 times the greatest leng-th of the same, narrowing cephalad, so that the 

 cephalic width is distinctly less than the caudal width and faintly 

 less than the width of the adjacent portion of the head, in transverse 

 section the pronotum is regularly rounded dorsad and into the lateral 

 lobes; cephalic margin of the dorsum gently arcuate, the caudal 

 margin broadly obtuse-angulate, the immediate angle narrowly 

 rounded, both margins faintly cingulate; hairs on the pronotum 

 large and chsetiform, those along the caudal margin directed dorso- 

 caudad, those on the lateral lobes directed cephalad; a short cephalo- 

 meclian longitudinal sulcus present; lateral lobes longer than deep, 

 rounding into the dorsal surface; ventro-cephalic angle broadly 

 rounded, ventral margin straight, ventro-caudal angle narrowly 

 rounded, caudal margin straight; surface of the lateral lobes obliquely 

 impressed. Tegmina reaching to the apex of the abdomen, pilosity 

 covering the dorsal surface from the region of the humeral angle, the 

 lateral field almost unhaired; lateral field with three veins, of which 

 one parallels the margin, another is very brief, the third reaches the 

 costal margin at about the distal fourth of the field; mediastine, 

 humeral, discoidal and median veins of the tegmina subparallel, 

 straight; ulnar vein arcuate proximad ; anal vein bent both proximad 

 and distad, straight between, joining the axillary vein at the distal 

 third of the tegmen; axillary veins two in number, these joining and 

 continuing as a single vein. Exposed portion of the wings projecting 

 distad of the closed tegmina a distance slightly greater than one-half 

 the length of the tegmina, haired similar to the tegmina. Ovipositor 

 no longer than the head and pronotum together, robust, dorsal mar- 



