MORGAN HEBARD I 3 



E. Ulnar vein of wings without proximal incomplete rami. 



F. Tegmina with strongly oblique discoidal sectors. (Size medium 

 small. Tegmina fully developed, extending beyond apex of abdomen. 

 Ventro-cephalic margin of cephalic femora with two heavy, elongate, 

 distal spines. Abdomen with sixth dorsal segment specialized and 

 succeeding segments transversely constricted. Subgenital plate tri- 

 angularly produced, with large, elongate styles directed along the 

 margin of the plate toward its apex. General coloration ochraceous- 

 bufT. Pronotum with latero-caudal blotches of deep chestnut brown 

 and with disk ochraceous tawny. Tegmina transparent buckthorn 

 brown, paler distad, with a broad, transverse, paler band at apex of 



anal field.) Supella supellectilium (Ser\ ille) 



FF. Tegmina with longitudinal discoidal sectors. 



G. Tegmina with discoidal sectors not angulate at apex of anal field. 

 Antennae not hirsute in basal half. Pronotum not angulato-pro- 

 duced caudad. 

 H. Pronotum not distinctively marked. Size small to \-ery small. 

 Ventro-cephalic margin of cephalic femora with two heavy, elon- 

 gate, distal spines. Dorsal surface of abdomen unspecialized. 

 Subgenital plate symmetrical. Styles similar, minute, rounded, 

 with dorsal surface armed, situated in brief marginal concavities. 



I. Tegmina less reduced, not quite reaching apex of abdomen, 

 5.2 to 6.6 mm. Produced portion of subgenital plate between 

 styles transverse rectangulate, nearly three times as broad as 

 long Cariblatta lutea lutea (Saussure and Zehntner) 



II. Tegmina more reduced, leaving distal portion of abdomen 

 exposed, 3.6 to 5 mm. Produced portion of subgenital plate 

 between styles subquadrate, very slightly longer than wide. 



Cariblatta lutea minima Hebard 

 HH. Pronotum distinctively marked with paired, moderately 

 heavy, longitudinal lines of deep mars brown. Size medium 

 small. Ventro-cephalic margin of cephalic femora with three 

 heavy, elongate, distal spines. Abdomen with sixth dorsal seg- 

 ment to and including the supra-anal plate, distinctively 

 specialized. Subgenital plate strongly as>nimetrical. Sinistral 

 style very small, rounded; dextral style very minute, not half as 

 large. (Tegmina fully developed, extending beyond apex of 



abdomen.) Blattella germanica (Linnaeus) 



GG. Tegmina with discoidal sectors angulate at apex of anal field. 

 Antennae hirsute in basal half. Pronotum considerably angulato- 

 produced caudad, with apex rounded. (Size medium small. Dorsal 

 surface of abdomen with second, third, sixth and seventh segments 

 specialized. Styles very dissimilar, the dextral showing the greater 

 specialization. Tegmina fully developed, extending be\ond apex 



MEM. AM. EN'T. SOC, 2. 



