FAM. LOCUSTlDvE 17 



SUBFAM. PHASMODIN/E 



The Phasmodinae are a group of Locustidse composed of two genera, each consisting of a single 

 species which, especially Phasmodes ranatriformis, bears a close superficial resemblance to certain of the 

 Pha^midae, or walkingsticks. The group is not a natural one and should by rights be divided, as one of 

 its component genera has well developed open foramina while the other is entirely without hearing 

 organs. There is nothing recorded on the life history or habits of the members of the group, which are 

 all rare creatures, Phasmodes being known only from a single imperfect female in the British Museum. 

 The two genera may be separated by the following key : 



TABLE OF GENERA OF THE SUBFAMILY PHASMODIN^: 



1. Apterous, at least in the female; foramina absent 1. Genus Phasmodes. Westwood. 



— Winged in both sexes; foramina well developed, open 2. Genus Zaprochilus, Caudell. 



I. Genus PHASMODES, Westwood 



Phasmodes. Westwood, Arcana Entom. Vol. 2, p. 56 (1S45); Karsch, Ent. Nachr. Vol. 17, p. 98 

 (1891); Kirby, Syn. Cat. Orth. Vol. 2, p. 355 (1906). 



Characters. — Female, the male unknown. — Phasmid-like in form, the body elongate and 

 parallel, the abdomen scarcely thickened mesially. Head horizontal; palpi elongate; antennae with the 

 basal segment elongate and compressed. Prothorax elongate, slightly depressed; presternum unarmed; 

 meso- and metathorax short, unarmed beneath but marked mesially with a longitudinal depression. 

 Abdomen twice as long as the thorax, noticably tapering towards the apex and consisting of nine 

 distinct segments. Ovipositor nearly as long as the abdomen, straight and tapering. 



Legs slender, the four anterior ones equal in length, the anterior tibiae without foramina; tarsi 

 four jointed, pilose, the third joint cordate. Elytra and wings entirely absent. 



Type. — Phasmodes ranatriformis, Westwood. 



Geographical distribution of species. — Australia. 

 1. P. ranatriformis, Westwood, Arcana Ent. Vol. 2, p. 56, pi. 63, f. 4 Australia. 

 (1845); Kirby, Syn. Cat. Orth. Vol. 2, p. 355 (1906). — Plate 2, Fig. I. 



2. Genus ZAPROCHILUS, Caudell 



Zaprochilus. Caudell. Proc. Ent. Soc. Wash. Vol. 11, p. 114 (1909). 



Prochilus. Brulle, Hist. Nat. Ins.Vol. g,p. i3 4 (i835); Serville. Ins. Orth. p. 383 (i83g); Blanchard, 



Hist. Nat. Ins. Vol. 3, p. 20 (1840); Karsch, Ent. Nachr. Vol. 17, p. 98 (1891); Kirby, Syn. 



Cat. Orth. Vol. 2, p. 355 (1906). 



