1892. J 147 



articulation very faint, and looks like a fused joint. Maskell states 

 (Trans. Hoy. Soc. S. Australia, 1888, p. 106) that B. leptospermi, Mask., 

 has a false joint in the antennae, so that I feel justified in placing this 

 in the genus. 



Quite recently Mr. Maskell has furnished me with specimens, and 

 photographs of his B.formicicola, MS., which he has found inhabiting 

 ants' nests in New Zealand, but this is a much smaller species, and 

 differs in many important points, so far as I am able to judge from the 

 specimens and photographs. The antennae, curious eyes, and the sac 

 are the distinctive characters in this species. 



Eeceived from Miss Tomlin, of Chester, who found a few speci- 

 mens while hunting for Coleoptera in Gruernsey. To her I have the 

 honour of dedicating the species. 



EiPERsiA FRAXiifr, Newstcad. 



Eriococcus fraxini, Newstead, E.it. Mo. Mag., 2nd Ser., vol. ii, p. 165. 



Mr. Maskell has kindly examined specimens of this species, and 



has written to me calling attention to the error on my part, and a 



further study has convinced me that the species described (Z. c.) is 



undoubtedly referable to the genus Bipersia. 



EXPLANATION OF PLATE II. 



Lecanium minimum, $ , fig. 1, antenna ; la, leg. 



„ assimUe, $ , fig. 2, antenna ; 2a, leg. 

 Pulvinaria persiccB, $ , fig. 3, antenna; 3a, leg (part only). 

 Signoretia luzulcs, J , fig. 4, antenna ; 4a, ditto, first four joints. 

 Pseudococcus socius, ? , fig. 5, antenna ; 5a, leg ; 5b, extremity of tarsus with claw. 



(7 , fig. be, antenna (reproduced). 

 Eipersia Tomlinii, ? , fig. 6, antenna ; Qa, leg ; Qh, eye ; Qc, antenna of larva. 

 „ pulveraria, ? , figs. 7 and 7a!, antenna ; 7i, leg ; 7c, antenna of larva. 



ERRATA. 

 Page 144, line 16 from bottom, /br " and these," read " these, and " 

 On Plate II, ybr " 6a," read " 5a." 



Chester : January, 1892. 



DEM AS CORYLI. 

 BY MAJOll JOHN N. STILL, F.E.S. 



Why the English name (the nut-tree Tussock) is given to this 

 moth I cannot understand, for out of the many dozens of the larvae that 

 I have beaten out, I have never got one from the nut, the greater pro- 

 portion were from beech, although the oak has yielded a few. 



P 2 



