MORGAX HEBARD 121 



dorsal abdominal segment. Limbs moderately heavy in male, 

 heavier in female; in both sexes with cephalic femur very slightly 

 wider proximad than distad, the ventro-cephalic margin supplied 

 with a fringe of hairs, terminating distad in a single heavy, re- 

 duced spine, ventro-caudal margin with one or several similar 

 distal spines; ventro-cephalic margins of median and caudal 

 femora with very few, irregularly scattered, distant, reduced 

 spines, ventro-caudal margins of median and caudal femora with 

 more numerous, heavier but reduced spines. Tarsi similar in 

 both sexes except that the joints are more slender in the male; 

 caudal metatarsus no longer than combined length of first three 

 succeeding joints; four proximal joints with ventral surfaces un- 

 armed and fully occupied by large pulvilli, which are bluntly 

 a,ngulato-produced distad, that of metatarsus linear in proximal 

 portion. Large arolia present between the delicate tarsal claws. 



Colapteroblatta compsa new species (Plate XIX, figs. 1 and 2.) 



The males are unknown of the species showing nearest affinity 

 to this large and striking insect. When compared with the 

 female of that species, Porohlatta cylindrica, here described, that 

 sex of the present insect is found to differ in the much bi'oader 

 form, weak hooding of the pronotum cephalad even less apparent 

 but with lateral wings likewise simple, overlapping sutural mar- 

 gins of the tegmina and less reduced cerci, which in normal posi- 

 tion extend slightly beyond the curvatiu-e formed by the free 

 margin of the adjacent segments. 



Type. — cf ; San Lorenzo, Sierra Nevada de Santa INIarta, Mag- 

 (lalena, Colombia. Elevation, 7000 to 8300 feet. August 23, 

 1913. (M. A. Carriker Jr.) [Hebard Collection, Type No. 447.] 



Size large for group; form elongate, rather l)road. Head with interocular 

 area deplanate, moderately punctulate, forming a weak, rounded, obtuse- 

 angulation with the deplanate, moderately punctulate- face; eyes large, mod- 

 erately projecting; interocular space broad, as wide as eye, slightly broader 

 than interocellar space, considerably narrower than width between antennal 

 sockets; ocelli decided, large, flattened surfaces oblique to plane of intervening 

 area. Maxillary palpi small and slender; third joint longest; fourth decidedly 

 shorter; fifth (distal) joint intermediate in length between these, weakly en- 

 larged. Pronotvmi, tegmina, wings, abdomen and limbs as given in generic 

 description. Oblique sulci of pronotal disk l)road, distinct. Tegmina broad- 

 est meso-distad, with discoidal sectors moderateh' oblique. Sinistral wing 

 with few (3) complete and many (16) incomplete rami of the ulnar vein: inter- 



TRANS. AM. ENT. SOC, XLV. 



3 



