1897.] of the Colcoptera of South Africa. 107 



elytra are much stronger, and there is no trace of lateral stria ; the 

 segments of the abdomen are provided with tubercles, which are 

 absent in the other species. At first sight one feels inchned to con- 

 sider this insect as belonging to a genus distinct from Odontalgus, 

 but a close inspection reveals no generic difference. 



Hab. Cape Colony (Cape Town, slopes of Table Mountain and 

 Lion's Eump). Apparently very rare. 



Tribe TYKINI. 



Body variable, mostly always attenuate at tip ; head provided with 

 a more or less conspicuous antennal tubercle, cheeks simple laterally 

 in the anterior part ; first ventral segment hidden by the posterior 

 coxae or the metasternum ; abdomen most often marginate ; inter- 

 mediate trochanters always elongate, the others often so ; claws of 

 tarsi double, equal in length or subequal ; pubescence always 

 simple, mostly always elongate, sometimes short, but never squamose. 



This tribe is closely alhed to the preceding one, and differs chiefly 

 by the hair-like pubescence and the non-prominent sides on the 

 frontal part of the head. 



The tarsi have two equal claws generally, but in some few insects 

 from the Malayan Archipelago and Australia these claws are unequal. 



The tribe includes most of the finest and largest PsclaphidcR, and 

 is better represented in Africa than anywhere else, but it is also pretty 

 numerous in Asia and Australia. One of the most important genera, 

 Gentrophthahmis, more numerous in Asia but extending also in 

 Africa to the East and West Coasts, Abyssinia, and Algiers, is not 

 found in South Africa. 



Gen. TMESIPHOEUS, Le Conte, 

 Bost. Journ. Nat. Hist., vL, 1850, p. 75. 



SiNTECTES, WestW. 



Oblong, head elongate and with an ocular canthus underneath 

 more or less produced and spinose ; maxillary palpi strong, first 

 joint inconspicuous, second arcuate, clavate and appendiculate, third 

 more or less oblong, angular in the median part outwardly and 

 appendiculate, fourth dilated externally, acute at tip ; antennae 

 strong, club triarticulate ; prothorax more or less cordate ; elytra 

 more or less briefly costate ; abdomen marginate, bi- or tri-carinate, 

 and sometimes without carinae at all ; posterior coxjb apart, tarsi 

 rather elongate, third joint a little longer than the second, claws 

 double, equal ; pubescence variable, long or extremely short. 



Species of this genus occur in North America, Australia, x\sia, and 



