38 [February, 



examined. In all tliese the parts mentioned bear long hairs much like 

 those of exaltatus, though perhaps they are generally less numerous. 

 The characters given by Smith and Saunders are too variable to be of 

 much value. It is useful to notice (especially as the view of the pro- 

 notal angulation is sometimes interfered with by the pin) that in 

 exaltatus the transverse piece between the postscutcllum and the 



^7" 



propodeum forms a fairly broad strip even at the middle, whereas in 

 jyiisillus and its allies it is extremely narrow there and, as it were, 

 almost obliterated by the deep depression or fovea at that point. As is 

 the case with Psammochares, the males of Salius never present any 

 difficulty. The upper figures are made from the hind claws of an 

 unusually large and an extremely small specimen of S. notatulus, the 

 lower from an exaltatus of average size. 



Beaumout Lodge, AVoodland I'ark, Paigntou. 

 November \st, 1919. 



ON THE GENUS ATHEROIDES Haliday { APHID AE). 

 BY F. LAING, M.A., B.Sc, F.E.S. 



(Published with the permission of the Trustees of the British Museum.) 

 The following descriptions are drawn up from a study of the 

 material in the British Museum. This material was mounted on cards, 

 and is in fairly good condition ; most of it has now been transferred to 

 slides. As far as one can now learn it was the material to which 

 Walker refers in his Cat. Homoptera in the Brit. Mus. iv, pt. 1. The 

 figures are drawn up b}'' Terzi, and in each case the right antenna has 



been drawn. 



Atheeoides Haliday. 



In Curtis's " Guide to the Study of Insects," 2nd edition, 1837, we 

 find the genus At Ji oroides Haliday cited, together with two species, 

 serrulatus Halid. and hirtcUus Halid. The genus was not defined, 



