ICO.1170. THE FAMILY (iOM I'lKHHlSM I D.TS—COOK. 707 



Legs of males sjjarsely liiisiite, tlie antciior iiiid tlioir sterna more 

 fitroiifjly so, with lonj^c-r liairs; tlie last two joints are <listiM(',tly tliougli 

 miiiutely tuberculate on their ventral face, and all the hairs appear to 

 rise from the fine ij^rannles. 



Coi)ulatory lej^s (Plate, LVIII, fij^s. id-\l). 



Color of alcoholic specimens bright chestnut, the anterior subseg- 

 nuMits, carinM', l(i;;s and anteniiM' somewhat lighter; the basal part of 

 the compressed ])orl ion of the copnlatory legs is daik brown, as are also 

 the apex of the last segment and the setiferous tubercles of thepreanal 

 scale. 



Length, 70 mm.; width, including carina', 12.5 mm.; width, without 

 carina-, H..') mm.; h^nglh of anlcnna-, S mm.; length of leg from tenth 

 segment of male, 10 mm.; length of last leg of male, ISt mm. 



Locality. — Tanga, Usambara, (Jerman ICast Africa, two mature males 

 and ojie female, collected by Reimer. 1Mie female is moic delicate in 

 texture and had piobably moulted shortly Ixdbre being captured, but is 

 evidently mature. A fourth specimen, a robust and deeply colored 

 mature male, has recently come to the Heilin Museum from "Tanga 

 Hinterland," (collected by Il(;insen. 



A comparison of the measurements of the legs and antennas of this 

 species with Wxohg, o\' AnUxUsmus and AstrodcHmnH -wxW make ai)])arent 

 the much slighter development of secondary sexual chara(;t<'rs, ])er- 

 haps correlated with the absence of the process from the fifteenth seg- 

 ment and of ridges from fhe sterna. 



TYMBODESMUS, new genus. 



liody mediunj to rather large, somewhat more than five times as long 

 as broad, oblong; doisum rather strongly convex, the carina- somewhat 

 liori/ontal. 



Antenna- filitbini, moderately robust, second Joint slightly longer than 

 the four following, which are sube(ju.il; olfactory cones four. 



First segment somewhat less than three tinuis as broad as long, the 

 {interior and jiosferior margins converging laterad, so that there is no 

 lateral side but merely a rounded coi'iier, much as in (hunphodeHmuH. 



►Segments dorsally smooth and shining, distinctly ruguloso laterad. 



Tjateral carina- with thickened margins rather broad, i)rominent, and 

 abrupt; on anterior segments tlui calli are somewhat reduced, but still 

 prominent and distinct; posterior corners moderately produced. 



Uejmgnatorial ])ores 13, located in large and deep excavations, open- 

 ing subdorsally. 



Preanal scale distinctly, though minutely, apiculate; setiferous tuber- 

 cles rather small, though ])rominent, not ex<'eeding the apex. 



Sterna with a tine, though distinct, transverse ridge between the 

 bases of each pair of legs; this is interrui)ted for a considerable dis- 

 tance in the middle and is more prominent between the posterior legs 

 of each segment, esj)ecially segments 8 and 0, on the former of which it 



