ACCOUNT OF THE PHASMIDAE, WITH NOTES ON THE EGGS. 



91 



Numerous eggs of A. stolli aud A. confusa were deposited by specimens kept 

 alive by Dr Willey. He noticed that when an egg is deposited another one immediately 

 replaces it in the ovipositorial uterus. ' The generic resemblances between the eggs of 

 A. stolli and A. confusa is very evident, but the specific distinctions are so strongly 

 marked as to support the suggestion of Kaup that the eggs may possibly afford the 

 best way of distinguishing closely-allied species of Phasmidae. 



Tribe. Phasmides. 

 Genus. Cacomorpha, n. g. 



Corpus parum elongatum, maris alatum, feminae omnino apterum ; pedibus parum 

 elongatis, femoribus dilatatis fimbriatis, tibiis marginibus undulatis, tarsis margine interno 

 sulcato. Antennis elongatis, 20-articulatis, articulis discretis ; metathorace utrinque lobo 

 singulo fimbi'iato, pendente (Fig. 23) ; metanoto breve ; segmento mediano illo duplo 

 longiore (in femina haud discreto) ; corpore subtus membranaceo, laevigato, metanoto 

 utrinque loba libera ciliata ; lamina subgenitali in utroque sexu breve, haud prominula. 



This genus is evidently allied to Cotylosoma (C. Waterhouse, Ann. Nat. Hist. XV. 

 1895, p. 498) but that genus has tegmina and short wings in the female, and the 

 side of the breast has five free lobes. Cacomorpha should no doubt be placed in 

 Brunner's group Prisopi, but it is scarcely possible to assign a definite position in the 

 present system of Phasmidae to these curious Insects. The antennae are much longer 

 than the femora but possess only 20 joints. The tibiae are smooth beneath but have 

 no apical area, though the Prisopi are placed by Brunner in the tribe Phasmidae, 

 which is characterised by the possession of an apical area to the tibiae, and by being 

 winged in both sexes. Prisopus is an American genus and has a short mesothorax, 

 thus departing strongly from Cacomorpha. The sexual characters are peculiar, there 

 being no genital appendages covered by the short, flat lamina subgenitalis of the female. 



(15) Cacomorpha aberrans, n. sp. PI. VIII, Fig. 12 $. 



Corpore testaceo, fusco-variegato ; subtus pallido, laevigato membranaceo ; capite brevi 

 inerme ; mesonoto granulato ; cercis sat elongatis sublineares. 



£ . Tegmiua parva, alae magnae ; abdomine sublineari, laevigato, tantum ad apicem 

 rugoso. 



Long. corp. 38 mm.; antenn. 20 mm.; capitis post antenn. 2mm.; pronoti 2i mm.; 

 mesonoti b\ mm. ; metanoti 2| mm. ; segm. med. 5 mm. ; abdominis 20 mm. ; femor. 

 ant. 9 mm. 



% . Aptera, supra rugosa, abdomine lato. 



Long. corp. 50 mm. ; metanoti 2 mm. ; segm. med. 5 mm. : abdominis 26 mm. ; lat. 

 abdominis 7 mm. 



In the male the lamina supra-analis is not visible, in the female it forms a minute 

 bifid process. The cerci are similar in the two sexes. 

 Loc. Lifu : one male, two females. 



The specimens were brought to Dr Willey by natives, the species is certainly not 

 aquatic, there being no water on Lifu except in wells. In all probability it lives 

 closely appressed to the stems of bushes. Wood-Mason's idea that the lobes in Coty- 

 losoma are tracheal gills seems to me to have no foundation whatever. 



13—2 



