LANGURIIDAE FROM BURMA 259 



3. Tetralanguria elongata, Fabr. Syst. El. I, p. iri"2 (1801). 



Burma, Schwegoo ; Garin Chebà. Tenasserim, Thag-atà. 



The separation of tlie species, if sucli there are, of Telralan- 

 gurid is at present an unsolved problem and I consider all the 

 attempts made at present have proved futile, therefore I regard 

 as synonyms the six names given in Crotch, and in addition 

 L. borneensis , Harold, and L. amoemi,, Harold (Mittheil. der 

 munch. Ent. Ver.), and probably L. punclata (Harold, 1. c, p. 58), 

 are to be placed in the same category. Authors have been so 

 misled by colour differences which are here plainly of no use. 

 The latter, L. punclata, has some better ground to stand upon, 

 as the describer has mentioned the difference in form of the 

 thorax " thorace transverso, " which is the most striking cha- 

 racteristic of certain examples from Garin Gheba. But in our 

 specimens the abdomen is rufous with two spots on tlie 2."'\ 

 S.""*^ and ky^ segments and the apical segment black. There are 

 however other gradations of the form of the thorax, thus we 

 have from the same place specimens with a more convex thorax 

 rounded at the sides and with three spots. It is to be observed 

 that even the form of the antennae seems variable. The seventh 

 joint of the antennae is often distinctly more produced internally 

 than those preceding it, l)ut never so as to appear to form part 

 of the club. The apex of the elytra is truncate, faintly denticu- 

 late and with a minute mucro at the suture , but even this 

 character appears varialjle. Mr. Crotch's collection is now before 

 me, he says himself he failed to discriminate these species, as 

 a fact his " elongata " consists of eight narrow examples from 

 Borneo and Penang with red unspotted tho races; his pyramidata 

 is a medley, having 'little in common, one so labelled from 

 Dr.' Horsfield , being an ordinary T. elongata with the thorax 

 aeneous, and quite half of the specimens bear no locality. They 

 have no typical authority. The type of Mr. Fowler's genus " Te- 

 tralanguroides " is now before me, but is a very sorry example 

 having Ijeen pinned; the club is certainly like that of Pentelan- 

 guria. I have remounted the specimen very carefully, the abdo- 

 men is black and has short fine abdominal lines, the specimen 



