1902.] NEW HARVEST-SPIDERS. 40*3 



Family Tri^noxychid^, 



The principal characters of the genera of this family in its 

 restricted sense may be tabulated as follows : — 



a. Ocular tubercle very high Acumontia. 



h. Ocular tubercle low. 

 a^. Ocular tubercle upou or close to the anterior margin of the 

 carapace, 

 rt-. Anterior area of dorsal scute shorter than the rest of its [Nuncia. 



components taken together Trifenonyx & 



h'. Anterior area of dorsal scute as long as the rest of its 



components taken together Diasia. 



b^. Ocular tubercle some distance behind the anterior border of 

 the carapace. 

 1(3. Anteocular portioii of carapace horizontal ; palpi 

 sti'ongty spined ; claw of 3rd (? of 4th) leg strongly 



branched Sorensenella. 



b^. Anteocular portion of carapace sloped downwards and 

 forwards ; pal]3i weaklj' spined ; claws of 3rd and 4th 

 legs weakly branched LomaneUa. 



Genus Tri^noxyx Sbrens. 



Tri^nonyx coriacea, sp. n. (Text-fig. 83, B & 0, p. 408.) 



$ . Colour deep brownish ; legs yellow, clouded with black ; 

 mandibles and femur of palp black. 



Dorsal surface (text-fig. 83, B & C) coriaceous, the segments of 

 the carapace and abdomen each marked by an ill- defined series of 

 low tubercles. Ocular tubercle conical, bluntly rounded, neither 

 spinous, tubercular, nor granular. Abdominal sterna smooth. 



Mandibles smooth above, basal segment a little longer than 

 wide, with one apical tubercle above, second segment with a 

 few granules. Paljn moderately robust, the trochanter with a 

 pair of tubercles below ; femur with a pair below the base and 

 one near the distal end, about four, whereof two are spiniform, 

 above and two or three internally ; patella with one on the inner 

 side beneath ; tibia with three pairs of variously sized spines or 

 tubercles ; tarsus with two inner and three outer spines. 



Coxa of 1st leg without spines or long tubercles, simply tubercular 

 like that of the 2nd leg below ; that of 3rd less tubei'cular, that 

 of 4th nearly smooth below, some strong tubercles on the posterior 

 side of the 2nd and anterior side of the 4th ; groove between 

 coxfe of 3rd and 4th tubercular; trochanters of 1st, 2nd, and 3rd 

 weakly tubercular, femora of the same and tibia of 1st and 2nd 

 also weakly tubercular; tarsus of 1st with three segments, of 2nd 

 with eight, of 3rd and 4th with four ; a pair of spines at the 

 distal end of the protarsus of 1st, 3rd, and 4th; three distal seg- 

 ments of 3rd tarsus subequal in length, antepenultimate segment 

 of 4th tarsus shorter than the sum of the two distal segments 

 but longer than either. 



S . Dift'ers from $ in having a strong cephalic constriction and 

 the posterior portion of the body more elevated ; the ocular 

 tubercle tiiangular, more sharply pointed ; the maxillary pro- 



26* 



