346 Mr. H. Ling Roth's observations on 



exception of three almost black specimens, they are all 

 the progeny of one female hatched out of an egg from the 

 original lot. The three black specimens are the offspring 

 of some of the others received from Dr. Clubb. 



The young and fully grown insects were kept under 

 observation in inverted glass bell- jars of various sizes, 

 each one furnished with a small glass or pot receptacle 

 filled with water and well-washed sea-sand, in which were 

 placed the food-plant cuttings. I had at times over forty 

 of these jars in use, containing altogether some 400 speci- 

 mens. The temperature of the room in which they were 

 kept was regulated as much as possible between 56° F. and 

 64° F., although it did fall to 52° F. during some very 

 severe cold days in the first winter. 



As regards the measurements made, it is as well to note 

 that it is easier to measure dead than living specimens, 

 and in a few cases where it was not possible to measure the 

 living specimens with approximate accuracy these speci- 

 mens have not been included in the series commented on. 



The reference or series numbers given in the tables 

 are given consecutively — there has been no picking and 

 choosing — and the gaps indicate other groups, or series, 

 or egg lots, etc., undergoing observation for other purposes, 

 or may be traced to specimens which have dropped out 

 through death or the development of some malformation, 

 or on account of having been killed off as not further 

 required, etc. 



I wish to express my sincere thanks to Dr. Walter M. 

 Tattersall and Dr. A. D. Imms for valuable assistance in 

 preparing this paper. 



As regards the position of Carausius morosus among the 

 Phasmids, the late Mr. Meade- Waldo kindly wrote me : 

 " Carausius, Stal., Rec. Orth. iii, p. 8 (1875)— Type C. 

 strumosus, Stal., from Java. C. morosus, Brunner v. 

 Wattenwyl, the species with which we are concerned, was 

 described for the first time in Die Insekten-familie der 

 Phasmiden, Lief 2, p. 268 (1907), and is thus not included 

 in Kirby's Catalogue of Orthoptera. There are no 

 synonyms to C. morosus, though some authors have 

 considered the genera Carausius and Dixippus as the 

 same. Kirby in his catalogue gives Dixippus, Stal., as a 

 synonym of Lonchodes. Brunner divides the Phasmidae 

 into two large groups : Phasmidae areolatae and Phasmidae 

 anareolatae — 



