SOME SIAMESE TABANIDAE. 455 



14. Tabanus siamensis, Ric. 



Tahanus siamensis, Ricardo, Rec. Ind. Mus., iv, p. 212 (1911). 



This species, the provenance of which is given by its author siinpl}/ as " Siani," 

 is not represented in the series obtained by Dr. Barnes. The type and paratype, 

 both of which are completel}' denuded as well as somewhat shrivelled, and were 

 evidently preserved in spirit before being pinned, are in the National Collection. 

 A moment's glance at either specimen is sufficient to show that what Miss Ricardo 

 describes as the " shining black " colour of the thorax is simply due to excessive 

 denudation — doubtless caused by washing about while in alcohol. The pollinosc 

 covering of the dorsum of the thorax, of which vestiges are still conspicuous, is 

 Isabella-coloured, so that, although not the slightest trace of hair is now discernible 

 on the dorsum, it is clear that, whatever be the actual colour of the latter in this 

 species, it is certainly not " shining black." 



