MORGAN HEBARD 



79 



is folded ventrad over the base of the subgenital plate, decidedly elongate, nearly 

 twice as long as exposed portion of seventh ventral abdominal segment. 



The transverse flattening of the distal margin of the supra-anal plate is in some 

 males before us very weakly defined, in occasional specimens pronounced. Numer- 

 ous microscopic hairs are present on pronotum and tegmina. 



Characters of Female. — (Austin, Texas.) Size small, form ellipitical, stout and 

 compact, with dorsal surface moderately convex and glabrous. Head much larger, 

 distinctly broader and more convex than in male. Interocular space subequal to 

 that between antennal sockets; minute ocellar spots present. Maxillary palpi 

 short and stout. Pronotum decidedly broader, convex and smooth, without sulci; 

 caudal margin transverse with a very weak conve.xity, lateral margins finely but 

 distinctly cingulate. Tegmina lobiform, lateral, widely separated, extending very 

 slightly beyond caudal margin of mesonotum, surface glabrous with hardly a trace 

 of venation, costal margins fineh' but distinctly cingulate. Wings absent. Supra- 

 anal plate with a blunt, medio-longitudinal carina, rather weakly produced, lateral 

 free margins beyond cerci ver\- weakly conxex, convergent to the broadh- rounded 

 apex. Cerci \ery short, lateral margins entire, dorsal surface deplanate. Sub- 

 genital plate convex, little produced, with free margin rather weakly convex. 



Measurements {in millimeters) 



Length of Length of Width of Length of Width of 

 body pronotum pronotum tegmen tegmen 



Tryon, North Carolina (9) 10.2-11..8 2,7-2.9 3.6-4 12. 2-13. 6 4-4.4 



Brunswick, Georgia ... 11 2.7 3.8 12. i 3.9 



Iowa City, Iowa 12.8 3 4.2 13-3 4-6 



Mountain Grove, Mis- 

 souri 12.3 2.8 3.8 13. I 4.3 



Waco, Texas (11) 10.1-12.3 2.7-2.9 3.7-3.9 11. 7-12. 3 3.8-4 



9 



Raleigh, North Carolina (4) 9.7-10.7 2.9-3 4-3-4 4 17-1. 8 1.4-1.6 



Atlanta, Georgia 9.8 3 4.1 1.8 1.6 



Austin, Texas 9 2.8 4.1 1.9 1.7 



Sabinal, Texas 9.8 2.9 3.9 1.7 1.6 



Brownsville, Texas. ... 10,4 3 4 1.8 1.6 



Little variation is found in tlie si)ecies, except the striking color 

 differences shown b\- the males of the extremes of intensi\-e and 

 recessive coloration. 



Coloration. — cf. (Intensive.) Head shining blackish chestnut 

 brown, ocelli light buff; antennae dark dresden brown. Coxae, 

 limbs, lateral margins of pn^iotum and marginal held of tegmina 

 l)uckthorn brown. Abdomen and remaining portion of pronotum 

 (the transition there not sharjily defined) shining blackish chest- 

 nut brown, the latter with a mesal ochraceous area between the 



MEM. .\M. ENT. SOC, 2. 



