Memoirs of the Indian Museum. 



Central tubercle of head free, directed forwards 

 Central tubercle of head normal 

 Secondarj'- scars widely separated 



Secondary scars not widely separated, directed inwards so that 

 their posterior ends nearly meet in middle-line without reaching 

 posterior margin of raentum ; aatennae normal ; left outer tubercle 

 truncate or complex, right similar or simple and bluntly pointed ; 

 pronotal scars with or without hair 



/Antennae normal ; outer tubercles variable, simple or complex, not 

 markedly asymmetrical ^ ; pronotal scars hairless 



1 Antennae with lamellae of last four joints abnormally long and 

 slender, left outer tubercle broadly truacate, right more or less 

 pointed but no longer than left ; pronotal scars hairy 

 Outer tubercles simple, very variable, acute or truncate, highly 

 asymmetrical (that of the right side being always the larger) or 

 almost (? sometime's quite) symmetrical 



At least one of the outer tubercles complex, or truncate with an ad- 

 ditional tubercle between itself and anterior angle of same side of 

 tiead 



/Secondary scars united in middle-line behind, together forming an 

 J o«j-shaped depression much as in Omegarius ; anterior lower tooth 

 I of right mandible small but distinct 



[Vol. Ill, 



{Aiireluis, Kuwert ']. 



[Hype y pie s the n ii s, Ku- 

 wert''^]. 



[Kaiipiolus, Zang* 



i^Vellejus, Kaup)J. 



Secondary soars completely separated as i 

 of right mandible absent 

 Outer tubercles equal ^ 



rule, anterior lower tooth 



[LaMeiiiis, Kaup]. 



lPlesfheniis,Ka\ip { = Eni- 

 brviilciifi, Zang ■'■)]. 



(Gnaphalocnemis Group) 

 15- 



Parapelopides, Zang ; 

 pp. 246 & 297. 



Trapezochiliis, Zang; 



pp. 247 & 297. 



Outer tubercles unequal, that of right side always larger than that 

 of left 



Giiaplialociiemis,"' Heller; 

 pp. 248 & 298. 



t The genus Aureliiis, specimens of which I have myself examined, possesses all the characteristics 

 of the Hyperplesthemis group. 



■^ The genus Hyperplesthemis does not appear in Kuwert' s table for the determination of genera 

 (1896), being described, apparently for the first time, in 1898 (p. 318) in the description of H. impar, 

 Kuwert, without any separate generic definition. An examination of the type specimen has enabled 

 me to define the genus more precisely, and to find that L(76z>«;/s gracilis, Heller (Abh. Mus. Dresden 

 xiii, 3, p. 16), of which I have also seen the type, is really a Hyperplesthemis. See Mitt. Naturhist. 

 Mus. Hamburg XXX, 1913, p. 105. 



^ Kuwert says always asymmetrical, but they are symmetrical in his figure and in the majoritj- of 

 specimens before me. 



* Kaiipiolus trigonophoriis, Zang, as Zang himself suspected, is not a true Kaii-hioliis, and I have 

 made it the type of a new genus Kaiipioloides (see above, p. 200). 



^ Zang considers the name Plesthenus to be preoccupied by Plesthenes, Stal. 



•* Not always quite symmetrical in structure however : so it is possible that the genus Trapezochiliis 

 will eventually have to be merged in Gnaphalocnemis. 



'' Kuwert (1896, p. 229) states that there is always a depression between the left outer tubercle 



