152 APPENDIX. — HYDROMETKID^. 



abdomen proper and inward lialf of pleurites : one or two smaller 

 brown spots medially. Beneatb yellowish fulvous ; a lateral, 

 sinuous, dark castaneous line on the mesosternum on each side, 

 edged with silver ; also some obscure marks. The first segment 

 of the antennje one-fifth longer than the second. Fore femora 

 scarcely longer than the tibiae, which are nearly four times as long 

 as the tarsi ; last tarsal segment more than twice as long as the 

 penultimate. Middle femora slender, as long as body from base 

 of clypeus to base of pygophor; scarcely longer than tibiae and 

 tarsi together ; tibiae about twice and a half as long as the tarsi, 

 first tarsal segment twice as long as the second. Hind femora 

 one-third longer than the middle pair ; scarcely longer than the 

 tibiae and tarsi; tibife slightly more than twice as long as the 

 tarsi ; first tarsal segment not twice as loug as the second. The 

 bind part of the metanotum is triangular, the sides shortly trun- 

 cate, and the base a little emarginate." {Kirlcalchj .) 



" Length 8 millim." 



Hah. 8ikkiin ; Kurseong {Mus. Brussels^fide Kirhaldy). 



This species is stated to have " considerable general resemblance 

 to Chimarrhometra orientalis, Dist." (vol. ii, p. 190), but I have not 

 seen it, nor does it appear to be known at the Brussels Museum, 

 for I have corresponded on the subject with M. Severin and 

 Dr. Schouteden. 



Genus HALOBATES. (Vol. II, p. 186.) 



2926. Halobates germanus, Buck. White, Jtep. Voy. ' Challenger,'^ 

 ZooJ. vii, p. 50, pi. i, f. 6 (1883). 



*' Loug oval ( cT ) or shortly ovate ( 2 ), widest behind the 

 middle. Dark ashy grey, paler on the sides ( d" ) or silvery grey 

 ( 5 ). Head with an obscure transverse rufous yellow mark on 

 each side at the hind margin. Antenna? and legs fuscous black 

 above, dark fuscous brown below, clothed sparsely with grey 

 pubescence. Base of antennae narrowly rufous ochreous. Front 

 legs with coxae, trochanters more especially on inner side, and base 

 of femora below, middle legs with a spot on the acetabula below 

 (broader and more distinct in the female), trochanters, and base 

 of femora below ; hind legs with trochanters and base of femora, 

 more or less indistinctly fuscous ochreous brown. Abdomen with 

 hind margins of ventral segments fuscous ochreous. Genital 

 segments : first below on disk and posteriorly, second above, and 

 apex of third above, fuscous brown ; second below, especially at 

 apex of horns, and most of third below, fuscous rufous-brown. 

 Antennae : third joint shorter and fourth joint longer than the 

 second. J^ront tarsus : first joint rather more than half the 

 length of second. Middle tarsus : first joint about five times as- 

 long as second." (Buchanan White). 



