142 FAMILY IV. PHASMIDJE. THE WALKING-STICKS. 



58. HETEROXEMIA L/EVISSIMUS Brunner 1907, 338. Smooth-backed Walk- 

 ing-stick. 



"Female. Body wholly smooth. Head not longer than pronotum. 

 Front femora equal to mesonotum. Second and third abdominal seg- 

 ments subequal, as long as wide. Anal segment semicylindrical, emargi- 

 nate. Cerci short, terete; operculum obtuse; ovipositor free. Length of 

 body, 60; of mesonotum, 15; of metanotum, 12.5; of front femora, 15; 

 of hind femora, 14 mm. (Brunner.) 



Brimner's types of this species were from St. Louis and 

 "Lacus, Ontario." Caudell suggests tliat the type may have been 

 a young female of Diapheromera femorata. 



59. HETEROXEMIA TEXAXUS Brunner, 1907, 333. Texas Walking-stick. 



"Head elongate, longer than pronotum. Femora short, the middle 

 ones subincrassate, scarcely longer than metanotum. Anal segment of 

 male strongly fornicate. Cerci curved. Ninth ventral segment very short. 

 Subgenital plate large, hood-shaped. Abdomen of female smooth. Cerci 

 long, terete, acuminate. Operculum lanceolate, acuminate, not reaching 

 the tip of ninth segment. Length of body, $, 417, 9, 65 84; of mesono- 

 tum, ^ , 10, 9, 1418; of front femora, $, 12, 9, 17; of hind femora, 9, 

 15 20.5 mm." (Brunner.) 



This species was described from Texas and New York. 



IV. MEGAPHASMA Caudell, 1903a, 878. ( Gr., "large" + "appari- 

 tion.") 



Walking-sticks of very large size having the head short, 

 smooth, rounded, snbvertical ; antennae more than twice as long as 

 front femora; pronotum about one-fourth the length of mesonotum 

 and with a deep median transverse impression ; meso- and meta- 

 notum subequal in length, both with a fine median carina ; mid- 

 dle and hind femora swollen in both sexes, the middle ones thicker 

 than hind ones in male, both armed with a prominent subapical 

 spine beneath. Cerci stout, those of male somewhat spatulate, de- 

 curved, their tips meeting but not crossing; of female less than 

 half the length of last abdominal segment. The type f the genus 

 and only known species is 



60. MEGAPHASMA DENTRICUS (Stal), -1875, 76. Giant Walking-stick. 



Form elongate, robust as compared with that of preceding species; 

 the female much the more so. Brownish-yellow or fuscous with legs paler, 

 body and legs of male often in part green, sometimes maculate or banded 

 with gray. Pronotum about as long as head, with broad, deep median 

 transverse impression and a much finer longitudinal one. Seventh and 



