SUBFAMILY II. PHIBALOSOMIN.E. 143 



eighth abdominal segments subequal in length, each shorter than ninth. 

 Front legs much longer and more slender than either of the other pairs; 

 middle and hind femora in both sexes thick, 4-sided, broadest beneath, 

 their surface rough, the carinag granulate or finely dentate, the median line 

 below finely toothed in male, more strongly so in female. Length of body. 

 $, 117, $, 123 150; of pronotum, $ and $, 5.5; of mesonotum, $ , 22, $, 

 24; of front femora, $ , 29, $,27; of hind femora, 3, 26, $,23 mm. 



Stal's type of this giant walking-stick was a female from Ope- 

 lousas, La. It has since been recorded from Alabama, Iowa, Mis- 

 souri, Texas and New Mexico, and Caudell (Ms.) states that a 

 female taken on a porch near Louisville, Ky., in 1911 is now in 

 the U. S. National Museum. Somes (191G) states that it is not 

 uncommon in the Ozark region of Missouri and has been taken by 

 him as far north as Hamburg and Clarinda, Iowa. It is found, 

 he says, "on shrubs and trees and does not apparently differ 

 greatly in habits from the well-known Diapheromera fcntorata." 

 Near Victoria, Texas, M. deiitriciis is said to be rather common on 

 wild grape vines in the wooded bottom lands. 



This is the largest Phasmid known from the United States, a 

 female in the Philadelphia collection measuring 150 mm. in length. 

 In size it is approached, however, by the females of Aplopus 

 mayeri, one of which, in the Davis collection, measures 118 mm., 

 while R. & H. record others as reaching a length of 127.5 mm. ex- 

 cluding the oviscapt. 



Subfamily IF. PHIBALOSOMINJE. 



This subfamily is represented in extreme southern Florida by 

 a single species belonging to the following genus: 



I. APLOPUS Gray, 1835, 34. (Or., "single" + "foot") 



Elongate, robust species having the head short, subvertical, 

 armed above with two short unequal horns or spines, the right 

 one the larger; antenna? rather stout, setaceous, slightly more 

 than half the length of body, male, one-fourth shorter, female; 

 mesonotum more than twice as long as nietanotum ; tegmina and 

 wings present in the form of short oval or oblong pads ; legs slen- 

 der, not very elongate; middle and hind femora armed beneath 

 with several short, sharp spines and terminating at knees in a 

 pair of similar spines. 



Fifteen species of the genus were recognized by Kirby (1904, 

 363), all of them from the West Indies, Central and South Amer- 

 ica. The following species has been since described: 



