and Af<ialic Species o/" Hapalocliius. 179 



[Heterolaius, gen. uov.] referred to Laius, Guer. — L. in- 

 flaticoimis , Fairm. [type], L. bourgeoisi, Gcstro, and L. lati- 

 pen7iis, violaceipennis. and spinicoxis. Pic — are extremely like 

 tlie same sex of various species of the j)resent genus, but they 

 are separable therefrom by the subequally elongated, narrow, 

 second and third joints of the antennse, these two joints 

 being greatly dilated and subconnate, and the anterior tarsi 

 siinple, in the males. Collups velutinna^ Gerst,, from Zan- 

 zibar, type 9 (1873), referred to Hapaluchnis by Fairmaire 

 in 1887, must be a true Laius. In the descriptions here 

 given, the short node at the base of the second anteimal 

 joint is not counted as a true joint, the antenna? being 

 treated as 10-jointed, as in Laius and Collops. 



Amongst the African Hapalochriy\e find groups of species 

 represented by H. nubilis, sjostedti, testaceicoruis, appendi- 

 cifer, amplipennis, &c., respectively, with a common, abun- 

 dant, pi'imitive type of ? , and a series oi (S <S confined to 

 })articular localities with diverse, constant, differential 

 characters, which, in the present state of our knowledge of 

 these insects, must be regarded as of specific value. 



Key to the African Species *. 



1 (22). Aiitei-ior tarsal joint 2 proloii^'ed over 3, the 



apical portion sometimes broad and nigro- 

 pectinate at tip, sometimes narrowed and 

 claw-liko. 



2 (3). Anterior tibiae produced at the inner apical 



angle into a very long, curved, simple or 

 asymmetrically bifurcate spine ; antennje 

 flabellate : intermediate tibise greatly 

 swollen ; prothorax metallic (maculate in j 

 of No. 1) ; elytra maculate or unicolorous. 



[Subgen. IIapalochrops, Bourg.] Species 1, 2. 



.'{ (2). Anterior tibiaj not produced at the inner 

 apical angle. [Hapalochiius, Er., s. str.] 



4 (7j. Elytra maculate ; intermediate tibiis greatly 



swollen, penicillate in No. o. 



5 (0). Antennfe Oabellate or pectinate (intermediate 



femora iu No. 3 with a large, oval, metallic 



area beneath at ba.^e) Species 3, 4. 



6 (5). Anteimie serrate; intermediate femora witli- 



out fovea Species 5. 



7 (4). Elytra not maculate. 



8 (9). Anterior femora toothed at middle (Nos. 6-10) 



or base (No. 11 ) ; intermediate tibiae slender ; 



antennae pectinate Spocie.s (i 1 1 . 



* Males of H. nohilis, ciiiei-mceim, caitdahts, dolhuini, and scal»-osus 

 unknown; H. doUmani (No. 68) omitted from Table. 



12* 



