126 LABIIDiE. 



long, smooth, with a faint median impression, and a pair of small 

 tubercles over the roots of the forceps. Ventral surface clear red. 

 Penultimate ventral segment ample, quadrate. Pygidium broad 

 and iiat, prominent, depressed, posterior margin with a shallow 

 emargination, the angles produced outwards into blunt triangular 

 lobes. Porceps with branches dark brown, remote at the base, 

 nearly straight, elongate and trigonal, taj^ering and recurved 

 towards the apex ; about one-third the way down, the inner 

 margin is abruptly dilated to form a flat plate with a straight edge, 

 which disappears just before the apex. 



2 resembles the male ; pygidium of the same form, but forceps 

 simpler, without the dilated plate. 



BiTRMA: Bhamo, A'iii. {Genoa M^is.); Tenasserim : Thagata, 

 viii. {Genoa Mns.). 



Also recorded from New Guinea and doubtfully from Diego 

 Suarez. 



Tyj^e in the Genoa Museum. 



Distinguished by the broad bilobed pygidium and the flattened 

 straight-edged plate inside the forceps. Dubrony's figure, though 

 marked a c? , might well be a § , and pi-obably the type of P. gesiroi 

 is only the $ of PI. thoracica or PI. nigriceps. 



76. Platylabia thoracica, Dohm. (Pig. 83.) 



Platvlabia thoracica, Dohru, {Cu-) p. 348 ; Dvbr. (79) p. 371 ; Bonn. 



(88) p. 436, (94) p. 380, (00^) p. 73 ; Burr, (01) p. 76, (02) p. 482 ; 



Kirby, (04) p. 22. 

 Labidophora thoracica, Scudd. (76) p. 322. 



Brown and black. Antennae brownish, paler towards the apex. 

 Head reddish brown. Pronotum brown and yellowish. Elytra 

 and wings blackish brown. Abdomen reddish. Pygidium of c? 

 quadrate, flat, posterior margin with a point in the middle; 

 of $ similar, but posterior margin gently emarginate. Forceps 

 of (S elongate, remote at the base, depressed and nearly straight : 

 the inner margin armed with a strong tooth about the middle ; 

 of 2 ^ik® ^^^^ °^ ^^^ ^ 1 ^^^^ without the tooth, the inner margin 

 rather dilated and depressed. 



Ceylon: Punduluoya and Peradeniya {Green', coll. Burr)-., 

 BuKMA : Teinzo, v. {Genoa Mus.) ; Tenasserim : Kokarit, i./ii. 

 {Genoa Mus.). 



Also recorded from Penang, Sumatra, Aru Is., and Celebes. 



The distinguishing feature of the male of this species is the 

 rectangular pygidium with a single point in the middle of the 

 posterior margin. Attributed to it are the females which have 

 the inner margin of the forceps dilated and the pygidium with 

 the posterior margin gently emarginate. There is nothing to 

 distinguish these from the females of PI. nigriceps, and very 

 probably PI. nigriceps is nothing more or less than a variety of 

 PI. thoracica, from which it appears to differ only in the presence 

 of three points in the pygidium of the male. 



It may be that the same type of female forceps and pygidium is 



