1907.J NATURAL SCIENCES OF PHILADELPHIA. 39 



compressed pronotum and the color of the caudal tiljise. Of these two 

 forms it is closely related to sulcifrons on account of the slender build 

 of that species. From ociwiinata it differs in the more elevated pro- 

 notal carina and the color of the caudal tibite. 



Size small (d^) or medium (?); distinctly compressed, moderately 

 slender. Head deep, greatest width ventrad; occiput well rounded 

 and distinctly elevated above the general level of the disk of the pro- 

 notum, interocular space in the male narrower than the width of the 

 eye. in the female very slightly exceeding the width of the eye; fasti- 

 gium deeply excavate in the male, considerably excavate in the female, 

 median carina subobsolete in both sexes, lateral carinse well elevated, 

 the narrowed cephalic section of the fastigium deeply depressed; 

 lateral foveolse trigonal, moderately impressed; frontal costa slightly 

 constricted dorsad and immediately ventrad of the ocellus, regularly 

 expanding toward the clypeus, deeply sulcate throughout the length 

 except for a small dorsal section which is shallowlj' so; eyes ovoid, 

 flattened cephalad, moderately prominent in the male, little so in the 

 female, in length slightly exceeding (female) or about equalling (male) 

 the infraocular sulcus; antennae distinctly exceeding the head and 

 pronotum in length in both sexes. Pronotum distinct!}'' flattened, disk 

 with the median carina distinct, moderately high, well divided by the 

 principal transverse sulcus, the division of the prozonal section being 

 merel}'' an indention and not a complete deep incision as is the pro- 

 metazonal se])aration;* prozona contained about one and one-half 

 times in the length of the metazona, 

 cephalic margin obtuse-angulate, concave 

 laterad, caudal margin slightly acute- 

 angulate in the male, rectangulate in the 

 female; lateral angles distinctly marked, 

 not continuous, carinate in the immediate 



vicinity of the principal sulcus; lateral ^. „ /> ■ , 



. . J ^ rig. 3. — Conozoa carinata n. SY). 



lobes distinctly deeper than long, %-cntral Wing of male type, (x 2.) 



margin oblique, the ventro-caudal angle 



produced into an acute process; surface of the dorsum with a 



number of low but distinct asperities in the male and with 



weak longitudinal strigce in the female. Interspace between the 



mesosternal lobes very strongly transverse in both sexes. Tegmina 



very considerably exceeding the tips of the abdomen and caudal 



' In the male type the carina of the prozona is without the cephalic (prozonal) 

 indention, a condition found to be approached in tliree of the series examined 

 and which appears to he without taxonomic value. 



