156 COLOMBIAN DERMAPTERA AND ORTHOPTERA 



Type. — 9 ; San Antonio, Cauca, Colombia. Elevation, 6600 

 feet. October, 1908. [United States l^ational Museum.] 



Size medium; form moderately stout, the body width nearly subequal 

 throughout. Head moderately elongate; occiput supplied with nodules ar- 

 ranged in irregular longitudinal lines, slightly swollen caudad, there showing 

 three brief sulcations caudad; ocelli obsolete, ocellar area weakly convex 

 except meso-cephalad where a shallow rectangulate pit occurs, with angles 

 median and lateral; facial scutellum impressed, dorsal and ventral margins 

 parallel, arcuate dorsad, rounding sharply into brief and more strongly raised 

 lateral margins, which are directed dorso-laterad. Antennae with joints sim- 

 ple, moderately hirsute. Pronotum with transverse and medio-longitudinal 

 impressions distinct, about as long as head, supplied with nodules about 

 as thickly as occiput, with a few of -these larger meso-caudad. Mesonotum 

 slightly over three times as long as pronotum, surface thickly supplied with 

 nodules and irregularly rugulose with a few scattered nodes, with microscopic 

 vestiges of tegmina at the latero-caudal angles. Metanotum over two-thirds 

 as long as mesonotum, moderately nodulose as are also the proximal abdominal 

 segments; median segment half again as long as metanotum. ' Tegmina repre- 

 sented by minute, vestigial, roughened pads; wings absent. Proximal dorsal 

 abdominal .segments decidedly longer than broad. Disto-dorsal abdominal 

 segments apparently cristate, the ninth truncate distad. The soft integument 

 between the dorsal and ventral sixth abdominal segments is on each side pro- 

 duced in a moderately lamellate projection, very weakly undulating with 

 margin trilobate. Mesosternum and metasternum rugulose. Operculum 

 elongate with margins parallel to distal portion, which is angulato-convex. 

 On each side of this distal portion of the operculum is a large, longitudinal, 

 vertical plate, over twice as long as broad, with margins feebly convex-conver- 

 gent to its acute apex.^' Cephalic femora strongly compressed, with cephalic 

 flexure well developed, showing (four to five) weak undulations of the ventral 

 margin and (two) of the dorsal margin in the portion of greatest width, length 

 less than that of caudal femora. The carinae of the limbs are pronounced and 

 all are decidedly hirsute. Pulvilli rather large. Arolia well developed. 



Allotype. — cf ; Villa Eloira, Cauca, Colombia. Elevation, 5900 

 feet. September 5, 1908. [United States National Museum.] 



Very dissimilar in general appearance from female. Size nearly as large, 

 form much more slender. Head similar but very much smoother, the nodules 

 much fewer and smaller ; as in the male of Creoxylus spinosus, the eyes are more 

 protuberant and larger in proportion to the size of the head than in the female. 

 Pronotum similar to that of female but much smoother, with only a few 

 ;scattered minute nodules. Mesonotum with a feeble medio-longitudinal 

 .sulcus, very feebly rugulose with a few scattered nodules and minute nodes. 



*' These plates, called " appendix styliformis " by Redtenbacher, serve to hold 

 an egg after it has been extruded. One of the eggs was in this position in the 

 specimen before us. It is broad oval, flattened at each end, the surface of the 

 excorion or shell rough and thicikly suj)plied with short sharp spines, all directed 

 -cephalad. 



