JAMES A. G. REHN 291 



bases; frontal costa broad dorsad, not silicate but sparsely Ijiseriate punctate, 

 ventrad of ocellus sharply narrowed, lineato-sulcate, the margins strumose 

 and merging with the strumose ventral border of the face; laterad of the frontal 

 costa, ventrad of the ocellus, rec^tangulate strumosities join the costal margins; 

 supplementary facial carinae distinct, strumose, irregular, moderately diverg- 

 ing; remaining surface of the face and genae rugoso-strumose: eyes not de- 

 cidedly prominent, flattened ovate in basal outline, their greatest depth twice 

 that of the infra-ocular portion of the genae: antennae elongate, two and 

 one-quarter times as long as the dorsum of the pronotum, slender. Pronotum 

 short, robust, rugoso-cicatricose: greatest dorsal (caudal) width of disk con- 

 tained one and two-fifths in the greatest length of the same; cephalic margin 

 of disk faintly emarginate mesad, caudal margin of disk rounded obtuse-augu- 

 lato, the immediate angle flattened; median carinae weakly indicated ceph- 

 alad, obsolete mesad, distinct but low and connected with the strumose pat- 

 tern on the metazona; transverse sulci broadly and continuoush' indicated, 

 all severing the median carina, relatively shallow: lateral lobes with their 

 greatest depth subequal to their greatest dorsal length; cephalic margin of 

 lobes nearly straight, very faintly sinuate; ventro-cephalic angle sub-rectan- 

 gulate; ventral margin arcuato-truncate oblique emarginate cephalad, median 

 angle broad obtuse, caudal section of same margin subtruncate, obtusely 

 ascending; ventro-caudal angle rounded obtuse; caudal margin faintly oblique, 

 truncate. Tegmina surpassing the caudal femoral apices by about the length 

 of the pronotum, rather narrow, the greatest width contained five and one-half 

 times in the greatest length: costal margin with a low but elongate proximal loba- 

 tion, thence straight to the distal two-fifths, where the margin is gently arcuate 

 to the apex, which is costal in position; apical margin oblique truncate; sutural 

 margin faintly sinuate: venation rather closely placed; intercalary vein pres- 

 ent but irregular. Wings rather narrow, their greatest width contained about 

 two and one-fifth times in the greatest length of the same : anterior field nar- 

 row, the margin not deeply angulate-emarginate at the junction of the anterior 

 and axillary fields, the latter with the margin moderately arcuate: discoidal 

 vein with three rami, the proximal of which we consider the median vein, this 

 bifurcate. Prosternal spine broad, low, short conical, the tip slightly antrorse 

 in trend: interspace between the mesosternal lobes subquadrate, weakly en- 

 larging caudad; interspace between the metasternal lobes weakly transverse, 

 narrowing caudad. Ovipositor jaws compressed, moderately elongate, apices 

 somewhat blunted, dorso-lateral margins irregularly crenulate. Cephalic and 

 median limbs short. Caudal femora moderately slender, greatest depth con- 

 tained about four and one-half times in the greatest length of the same; caudal 

 tibiae distinctly shorter than the femora, pilose, dorso-external margin armed 

 with five spines, dorso-internal margin with seven spines: caudal tarsi elon- 

 gate, slender, second joint nearly as long as the metatarsus, third joint but little 

 short of the combined length of the metatarsus and second joint; arolia large. 



Allotype. — d^; Same data as the type. 



Diff"cring from the description of the type in the features here mentioned. 

 Size relatively small. Head faintly wider than the cephalic section of the 

 pronotum : interocular space very narrow, no wider than the second antennal 



TKANS. AM. ENT. SOC, XLII. 



