534 CATALOGUE OF 



with ridges; hind tibiae with two rows of stout black-tipped spines, those 

 on the inner side a little longer than those on the outer side. Length of 

 the body 27 lines. 



The much smoother body, the conical fore part of the head and the 

 broader antenuEe distinguish this species from P. dentatus. 



a. East Africa. Presented by Earl Russell. 



3. Pamphagus brevis. 



Foem. Nigricans, brevis ; caput et prothorax tuherculata ; caput antice 

 conicum excavatum aculum ; antenncE breves, lanceolalm ; prothoracis 

 crista alia, valde rotunda ta, poslice subdentata ; segmentorum abdo- 

 minalium margines postici unidentati ; femora postica lata, supra 

 spinulosa. 



Female. Blackish, short. Head and prothorax tuberculate. Head 

 in front excavated and acutely conical above, with two keels beneath. 

 Antennas short, not dilated, tapering from the third joint to the 13th. 

 Keel of the prothorax very high and much rounded, acute in the middle of 

 the fore border, more acute in the middle of the hind border, near which it 

 is slightly dentate. Hind borders of the abdominal segments acutely 

 dentate in the middle. Hind femora deep, witii a few minute spines 

 beneath and with one row of small spines above ; disk of the outer side irre- 

 gularly tessellated with ridges ; hind tibiae with two rows of stout whitish 

 black-tipped spines, those on the inner side longer than those on the outer 

 side. Length of the body 16 lines. 



The shorter body, the more acute cone of the head, the shorter 

 antennae and the more rounded keel of the prothorax, distinguish it from 

 P. apicalis. 



a. Natal. From M. Gueinziub' collection. 



4. PaMPHAGLS LINEOSUS. 



Mas. Piceus, subtus fulvus ; caput supra fuloum nigra bivittatum, 

 antice cnnicnm el incisnm ; antenme lanceolalce, prollmrace brevinres ; 

 prothorax tiiberculatus, albo bivitlatus, crista alia spinosa, margiiie 

 postico producto acuta; tibia qnatuor anteriorcs spinulosce : tibia; 

 pasticce apices versus rufce ; tarsi postici ruft; alee cinerete, fusco 

 venoscE ; alee postica venis poslerioribus aUiidis. 



Male. Piceous, tawuy beneath. Head above tawny, with a black 

 stripe on each side, conical and bilobed in front of the eyes ; front rugulose, 

 with four keels, of which the inner pair are strongly marked and diverge 

 much towards the mouth. Eyes ferruginous, elliptical, oblique, pro- 

 minent. Antennte flat, lanceolate, shorter than the proiiiorax. Prothorax 

 tuherculated, with a hijjh crest which is armed with strong irregular 

 spines; a short slender white stripe on each side; hind part acuie, much 

 elongated. Four anterior tibias with a few very minute spines; hind tibiae 

 red towards the tips, armed with two rows of stout pale testaceous black- 

 lipped spines ; hind tarsi red. Wings cinereous; veins brown. Hind 



