124 COLOMBIAN DERMAPTERA AND ORTHOPTERA 



Description of Genus}^ — Form elongate, with entire dorsal sur- 

 face evenly and strongly convex. Interocular space extremely 

 broad and ocelli small but distinct. Pronotum moderately 

 punctulate with surface strongly convex, the cephalic portion 

 divided from the larger caudal portion by a weak and broad 

 transverse sulcation, distinct only meso-laterad, lateral wings iin- 

 specialized. Tegmina heavily chitinous, abbreviate. Distal por- 

 tion of abdomen, limbs and their armament, pulvilli and arolia 

 as given here in the description of the genus Colapteroblatta. 



Poroblatta apatela new species (Plate XIX, fig. 3.) 



The present species is readily distinguished from the closely 

 allied P. cijli7idrica, described in the present paper, by the slightly 

 more punctate pronotum, with lateral margins of dark area more 

 broadly and less deeply invading mesad the pale lateral portions, 

 tegmina nearly attingent mesad and of the form found in Colapter- 

 oblatta compsa, here described, and dorsal surface of abdomen 

 strongly mottled laterad. In other respects apatela and cylindrica 

 agree closely. 



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

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

 lection, Type No. 466.] 



Size medium large for the group, rounded cephalad and caudad. Head as 

 described for cylindrica. Maxillary palpi with fifth joint decidedly longer 

 than fourth, sUghtly longer than third. Pronotum as in cylindrica, but caudal 

 margin without trace of minute angulate mesal projection. Tegmina" 

 truncate, about as long as wide, roundly produced caudad at costal margin, 

 thence with distal margin roundly emarginate, this cutting through the distal 

 portion of the anal field, angle at sutural margin slightly less than rectangulate 

 with apex sharply rounded. Wings vestigial, small rounded pads. Abdomen 

 as in cylindrica. Distal portion of abdomen, cerci, limbs and their armament, 

 pulvilli and arolia as given in the generic description of Colapteroblatta. 



Length of body, 26; pronotum, 6.7; tegmen at costal margin, 5.3; exposed 

 portion of tegmen at costal margin, 4.4; tegmen at sutural margin, 2.3; caudal 

 tibia, 5.3. Width of head, 4.5; pronotum, 7.7; tegmen, 5.2; interval mesad 

 between tegmina, 1.6; abdomen at widest point, 9 mm. 



Dorsal surface shining ))lackish chestnut brown. Pronotum with dorsal 

 portion shining bla(!kish clicstnut brown, this invading the cinnamon buff 

 lateral wings briefly in all but a short cephalic and caudal portion, its margin 

 there broadly and weakly convex, punctae and cingulate margin of lateral 

 wings bay. Tegmina shining blaclcish chestnut brown; marginal field cinna- 



" Based on female, the male sex being unknown and probably very dissimilar. 

 ^' In this specimen the distal i)ortion of the dextral tegmen is malformed. 



