﻿224 TABANIDAE ATTRACTED BY SCALE-INSECTS. 



The males of T. biguttatus croceus and T. laverani had not been previously 

 recorded. 



Prof. R. Newstead, F.R.S., has kindly identified the scale-insect which 

 attracted the flies as Ceroplastes egbavum, Ckll. (ajricanus. Green). The species 

 was originally described from Abeokuta, in Southern Nigeria, but appears to be 

 widely distributed in Africa. Prof. Newstead remarks that " many of the 

 LECANi] nae, of which Ceroplastes is a member, secrete a kind of ' honey-dew 

 that is attractive to insects, especially Hymenoptera ; and in Great Britain all 

 the species of the genus Vespa are particularly fond of the secretion." 



Bull. Ent. Research, III, pt. 2 (1912). 



