MORGAN HEBARD . 215 



turn with these angles rectangulate, but bkintly rounded. "Posterior edges of the 

 lamina supra-analis notched in the middle. Cerci with a very clearly circum- 

 scribed linear white spot on the dorsal surface. Subgenital plate large, nearly as 

 long as broad, evenly rounded behind."'^* 



Measurements {in millimetersY*'' 



Length Length Width Lengtli Width Length 



j-71 of of pro- of pro- of of of cau- 



body notum notum tegmen tegmen dal tibia 



Austin, Texas 2.65 .945 1.65 .95 1.35 .59 



Austin, Texas 2.7 1.06 1.89 .71 1.53 .59 



Austin, Texas 2.7 .95 i 77 -Ji i-35 — 



9 



Austin. Texas 2.45'''^'^ .945 1.9 — -55 



The dorsal contour of the insect is strongly convex, the male 

 tegmina rounding laterad, so that the costal margins are below 

 the lateral abdominal suture. In consequence, were the pronotum 

 and tegmina flattened out, an increase would be found for the 

 dimensions given. 



Wheeler's figures 3 and 4 are of the dorsal aspect of the insect, 

 thus the cephalic margin of the pronotum and the costal margins 

 of the tegmina are not visible, due to the convexity of the dorsal 

 surface. 



Coloration. — Amber yellow, sometimes suffused with sudan 

 brown, the suffusion strongest on the limbs. Eye facets blackish 

 brown. 



Immature specimens before us of both sexes, as stated by \\ heeler, 

 resemble the female except in the smaller size and the distinctly 

 paler coloration. 



The habits of this singular roach and its unmolested presence in 

 large numbers in the fungous gardens of the ant, Atta fervens Say, 

 are fully discussed in the paper in which the species is described. 

 The species is known only from the type locality. 



Specimens Examined : 12; (•> mahs, i female and 5 immature individuals. 

 Austin, Texas, II, 19, 1903, (W. M. Wheeler), 6 0^,1 ?, i ju\-. cf, 2 juv. 9, 2 

 small juv., [A. X. S. P.. Hebard CIn. and U. S. N. M.]. 



3-"= The distal portion of the abdomen is, in the single female before us, drawn in and 

 somewhat shrivelled. We conseqiientl}' quote these features from Wheeler's original 

 description. 



^■'^ Taken under the microscope. 



2** Distal portion of abdomen retracted in this specimen. 



MEM. AM. ENT. SOC, 2. 



