98 COLOMBIAN DERMAPTERA AND ORTHOPTERA 



form very broad for the group. Head with eyes well separated; 

 lateral margins of face distinctly converging ventrad. Maxillary 

 palpi with distal joint slightly shorter than penultimate joint. 

 Tegmina moderately chitinous; discoidal sectors few (5 to 6), 

 longitudinal. Wings with costal veins not clubbed, becoming 

 obsolete toward costal margin; intercalated triangle small but 

 apparent. Dorsal surface of male abdomen unspecialized. Cerci 

 ensiform. Subgenital plate of male fusing and speciaUzed with 

 styles. Subgenital plate of female short, showing a very short 

 medio-longitudinal distal cleft. Cephalic femora with ventro- 

 cephalic margin armed with (6 to 9) long stout spines (of which 

 one or two distad are sometimes decidedly shorter than the 

 others) , succeeded distad by a row of minute, well-spaced, piliform 

 spines, terminating in three heavy, elongate distal spines in in- 

 creasing ratio. Ventro-caudal margin of cephalic femora distad, 

 and ventral margins of median and caudal femora supplied with 

 elongate, moderately stout spines. First three tarsal joints sup- 

 plied distad with small pulvilli, brief ventral surface of fourth 

 joint occupied by a pulvillus.^'* Tarsal claws unspecialized. 

 Arolia present. 



Platylestes colombiae new species (Plate XVII, figs. 1 and 2.) 



Superficiallj' the present insect suggests a large and very broad 

 form of Latihlattella. The shorter, ensiform cerci are remarkable. 

 Type. — cf ; La Palmeta, Santander, Colombia. Altitude, 7500 

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

 lection, Type No. 464.] 



Size rather large for group, form very broad. Head with interocular space 

 three-fifths that between antennal sockets ; ocelli obsolete ; entire face flattened, 

 weakly convex; very small circular areas, with surfaces feebly convex, occur 

 meso- ventrad of and adjacent to antennal sockets. Maxillary palpi with 

 distal joint large, slightly shorter than penultimate joint and rather thickly 

 supplied with stiff hairs. Pronotum very feebly and evenly convex; greatest 

 width near caudal margin; transparent lateral portions not strongly declivent; 

 cephalic margin above head and caudal margin truncate, lateral margins feebly 

 convex and distinctly divergent to the broadly rounded latero-caudal angles. 

 Tegmina broad, showing slight reduction, not reaching apices of cerci; wings 

 showing distinct reduction: see generic description for other features. Supra- 

 anal plate small, lateral margins feebly convex, strongly convergent to distal 



'•^ This is the type found in both LaliblaUella and NeohlaUelln; the former 

 genus has been imfortunately assigned otherwise in Hebard, Mem. Am. Ent. 

 Soc, 2, pp. 12 and 18, though correctly characterized in the original description. 



