1900.] INSECTS A>"i) AItA.CH.vms FBOM SUM ALIL AND. » r )l 



them and t lio marginal groove on eacli side another similar but 

 curved groove which extends from in front of the middle of the 

 dorsal area back as Far as the posterior end of the marginal groove; 

 in addition to the punctures in the grooves there are a few coarse 

 punctures scattered here and there ; posterior border with eleven 

 festoons. Adanal plates narrowed in front, but. not extending far 

 forwards beyond the anus; their inner border nearly straight, 

 external border convex ; posterior border produced into a short 

 external and a long spiniform internal tooth, •which projects 

 nearly as tar hack as the posterior border of the dorsal plate, the 

 apex of this spine is obliquely truncate and sub'uitid, above it is a 

 second strong spine; a pair of postanal sclerites. Co sat of 1st 

 leg stronglv bidentate; of 2nd to 4th also bidentate, the two teeth 

 being on the posterior border, one proximal, the other distal and 

 thinner. Total length 4*8 mm. 



Two undistended female specimens, probably referable to this 

 species, have the cephalic plate about as wide as long, reddish in 

 the middle, blackish at the sides, the cervical grooves deep, a row 

 of large punctures representing the marginal grooves on each Bide, 

 some large punctures along the lateral edge in front of the eye, a 

 few between the cervical grooves, and a few large ones and many 

 smaller ones on the middle of the posterior area. The abdomen is 

 impressed posteriorly with three shallow grooves and is obsoletely 

 festooned. Coxa of the legs posteriorly weakly bispinate, the 

 externa] spine being the larger. 



Loe. Bularli in Wesl Somaliland (May 1895). 



Six specimens. Type (male) and two co-types (male and 

 female) in the British Museum. Three co-types (2 males and 

 1 female) iii the Hope .Museum at Oxford. 



The males of the three species of this genus obtained by 

 Mr. Peel may be determined as follows : — 



(d ) a. Donal plate marked behind with a pair of moderately 

 long grooves, one on each Bide of the middle line; 

 between these and the deep marginal groove there is a 



third long and deep groove extending from the a ad 



< ir third sulcus of the festooned border past the middle 

 of the dorsal plate; adanal plate produced behind into 

 a Ions spiniform pr< oe&s, immediately above 



which then d strong spine; ■■' pair of ohiti- 



nous postanal sclerites arm ■ 



b. ]>nr-:il plate «itli a longish posterior median sulcus and 

 ,-i pair of shallower impressions, one on eaoh side of it, 

 with only a rery short iballon snd inconspic i 



• m the marginal groove and the middle line; adanal 



plate not produced behind intoa long spiniform proi 



. M- aboi s • he terminal ion of 1 1>^ plate. 



a'. ] > ■ » r — 1 1 plate yellowish white, »itli large symmetrically 



disposed reddish-brown patobes . legs brown, painted 



wit i elj punctured . 



n| puncl ur< 

 /,'. it'.rvil plate deep brown with blacker patches -11111 

 yellow lateral run ily brown; 



ji iii- eloeerj and irregularly punctured; marginal 



groove distinct 



I* 



