14 THE BLATTIDAE OF PANAMA 



The species having two striking longitudinal markings on the 

 pronotum appear to be assignable to the Bivittata Group, these 

 are more elongate and usually decidedly larger than the species of 

 the Lateralis Group. Here again similar difficulty in delimiting 

 the unit occurs, the pronotal markings being sometimes fused to 

 different degrees, as in ^. hemiscotia here described, or absent, as 

 in A. gemma here described, structural features again obliging us 

 to place these species with others which agree more closely in 

 striking features of color pattern. 



Still other species, such as A. dohrnia^ia Saussure and Zehntner, 

 and A. cahimae here described, clearly represent other distinctive 

 and widely separated groups. 



We feel satisfied that revision of the genus will show it to be 

 comparatively homogeneous for so large a unit, but composed of 

 a number of readily recognizable groups. This is one of the few 

 genera of the Blattidae, which does not include domiciliary forms, 

 found both in Africa and America. 



The following features of limb armament we find characteristic 

 of Anaplecta. Cephalic femora with ventro-cephalic margin 

 armed with a long row of moderately closely placed, short, micro- 

 scopic, piliform spines, terminating in two elongate distal spines, of 

 which the more distal is slightly the longer; ventro-caudal margin 

 supplied with a few stiff elongate hairs and (none to four) elongate 

 spines, distad with or without a single elongate distal spine. Me- 

 dian and caudal femora with ventral margins supplied with a few 

 stiff elongate hairs and elongate spines (one to four, the greater 

 number always on the cephalic margin), all with a single elongate 

 distal spine. Caudal tarsi without pulvilli, or with ventral sur- 

 face of very small fourth joint alone fully occupied by a pulvillus. 

 Arolia vestigial in species lacking pulvillus, moderately large in 

 other species. 



Key to the Panamanian Species of Anaplecta 



This key is not of any diagnostic importance; it is given merely as a guide to the 

 species here considered. 



(Medio-discoidal area of wings with a distal longitudinal veinlet in all but A. 

 cabimae.) 

 A. Disk of pronotum unicolorous, tegmina immaculate. 



B. Disk of pronotum and tegmina Ijlackish brown. 



