1912.] NATURAL SCIENCES OF PHILADELPHIA. 185 



fully acquainted with Mogoplistes, with which he compared his new 

 genus. Philippi, in 1863, described the genus Microgryllus as a 

 subgenus of Gryllus, placing in it the two new species Gryllus pallipes 

 and griseus from Chili, to the former of which the name has since 

 been limited. Scudder, in the year 1869, based a new genus Cyclop- 

 tilum, 6 on a single new species, C. squamosum, from Texas, while at 

 the same time he described another new species from Lower Cali- 

 fornia as Mogoplistes occidentalis. Brunner, in 1873, proposed the 

 name Physoblemma 7 for several unnamed species, which name is 

 clearly shown by the text to be an exact equivalent of the older 

 Arachnocephalus Costa, a genus apparently unknown to him at that 

 time. Saussure, in 1874, described a new species from Cuba 8 which 

 he referred to Scudder's genus Cycloptilum as C. americanum, later 

 emending the spelling to Cycloptilus. 9 The same author, in 1877, 

 erected the genus Liphoplus 10 for two new species, L. novarce from 

 Tahiti and L. guerinianus from an unknown locality,-the former of 

 which has been selected as type of the genus by Kirby. Bruner, in 

 1891, described a species as Cycloptilum (using Saussure's emended 

 spelling, Cycloptilus) borealis, from Nebraska, 11 while the next year 

 Redtenbacher described a species from St. Vincent, West Indies, 

 which he called Ectatoderus antillarum. 12 Saussure, in 1897, in the 

 Biologia ls described two new species from Mexico as Ectatoderus 

 aztecus and Liphoplus mexicanus, while in the same year Scudder 

 described a species from southern Florida, based on a single female, 

 as Mogosiplistus [emended Mogoplistes] slossoni. u In 1905, the 

 present authors described a new species from a single male from 

 southern Florida as Liphoplus zebra, 1 ' while Morse, in the same year, 

 based a new species, Mogisoplistus 1 * [emended Mogoplistes] barbovri 

 on a single female from the Bahamas. 



Classification. 

 The three facts which strike one most forcibly after a careful study 

 of all the generic descriptions and the type species of the same are 



5 Zeitschr.fur Geo. Natur., XXI, p. 231. 



6 Proc. Bost. Soc. Nat. Hist., XII, p. 142. 



■ Seine. Entom. Gesell, IV, pp. 167, 169. 



■ Miss. Sci. Mex., Rech. Zool, VI, p. 426, pi. 8, figs. 41, 42. 

 9 Melang. Orth., II, p. 476, 1877. 



w Ibid., pp. 456, 483. 



11 Canad. Ent., XXIII, p. 37. 



12 Proc. Zobl. Soc. London, 1892. p. 218, pi. XVII, figs. 16a, 166. 

 ™Biol. Centr. Amer., Orth., I, pp. 230-231. 



14 Psyche, VIII, p. 55. 



15 These Proceedings, 1905, p. 49, pi. I, fig. 12. 

 * Psyche, XII, p. 21. 



13 



