PHASMID.E IN THE BRITISH MUSEUM. 455 



A very pretty species, allied to L. geniculatus. Gray, and ye'niculosvs, Westw., which 

 I believe to be distinct species ; but in both these the head is green. The insect formed 

 part of an interesting collection jDresented by Douglas Cator, Esq. 



Chondrostethus, gen. nov. 



Long and slender, with long and slender legs ; head long, bicornuted, antennas longer 

 than the front legs, at least in male, scape twice as long as broad, depressed and carinated, 

 especially in female ; second joint shorter, less depressed, about IJ times as long as 

 broad, and narrowed from base to extremity ; tibiaj slightly longer than femora; front 

 legs longer than the others, middle legs shortest, all the femora with small terminal 

 teeth beneath ; first joint of tarsi longer than all the rest together, except in the middle 

 legs, where they are of about the same length ; front femora at base, front tibiae at base 

 and before the extremity, basal joint of front tarsi, and base of middle tibiae furnished 

 with long, but not broad, foliations; median segment about half as long as the meta- 

 thorax, anterior edge straight ; metanotum with a rounded warty excrescence on each 

 side at the extremity in the male ; hind legs extending about to the extremity of the 

 three segments of the abdomen beyond the basal segment; three terminal segments of 

 abdomen in male of nearly equal length, hardly dilated, the last slightly longer than the 

 two preceding, tectiform, and excavated at the extremity. 



Chondeostethus Woodfordi, sp. n. (Plate XXXIX. figs. 1, 1 «, d ; figs. 2, 2 a, ? .) 



Brown ; prothorax as long as the head, with a longitudinal gi'oove, and transverse 

 grooves in front and in the middle ; tliere are also several incomplete grooves on each 

 side of the longitudinal one. In the female these grooves are much stronger than in 

 the male, and the back of the prothorax is alternately marked with black and yellowish. 

 In the female, too, the insect is strongly granulated (very slightly in the male), especially 

 on the head, pi'othorax, and mesothorax ; on the lateral borders these take the form of 

 a series of small tubercles. The male is much more slender thao the female. 



Dimensions. 



S- ?. 



millim. millim. 



Long, corporis ~5 124 



„ pronoti 3 4'5 



,, mesonoti 18 31 



„ metatiotij cum segmento mediano .... 12 19 



„ segmenti mediani 4"5 7 



„ femorum anticorum 22 33 



„ ,, medianorum 14 23 



„ „ posticorum 20 26 



Sab. Solomon Islands ( Woodford). 



The genus Thr'asyllus was founded by St31 on a male insect from the Philippines, 

 which he called T. macilentus. The present species agrees with the characters given by 

 Stal in many resj)ects, especially in the very long antennae, and the excrescences on the 



SECOND SERIES. — ZOOLOGY, VOL. VI. 61 



