1887.] 79 



Chrysophanus r/daeas. — Of general occun'ence, and the last butterfly to be 8een 

 on the approach of winter. 



Polyommatus Argiolus. — Common amongst holly towards Ewell ; very abundant 

 in 1870. P. AIsus. — Very common everywhere. P. Cori/don. — Always common on 

 the chalk ; sometimes it literally swarms. P. Adonis. — More local and not so 

 plentiful; rather plentiful this year. P. JEgon. — Also common. P. Agestis. — A 

 very common species ; most plentiful, perhaps, on the sandhills at Deal. 



Syrichthtis malvce. — Woods. 



Thanaos Tages. — Very common. 



Hes]}eria linea. — Also common. H. sylvanus. — The most common of the genus. 

 H. comma. — Local ; under tlie cliff near Kingsdown, and St. Margaret's Bay. 



Other species may occur wliicb Lave escaped my observation ; and, 

 in conclusion, I wish to say that the above notes are entirely with 

 regard to my own experience. 

 Dover: July Wi, 1887. 



OBSERVATIONS UPON ASPIDIOTUS RAP AX, COMSTOCK, 

 AND A. CAMELLIJE (BOISD.), SIGNORET : TWO ALLIED SPECIES 



OF COCCID^. 



BY ALBERT C. F. MORGAN, F.E.S. 



I have already (p. 68, ante) on the one baud referred to the 

 similarity which exists between the allied species of A. rapax and 

 A. camelUce, belonging to the sub-family of DiaspincB, and on the 

 other hand I have also quoted the opinions of competent authorities 

 to the effect that we should not be justified in concluding that the 

 two species are identical. 



It may, perhaps, therefore, be convenient to bring before the 

 reader the characteristic details of each species, in order that he may, 

 without necessity of research, observe which are the characters com- 

 mon to both, and which are peculiarly distinctive of each species. 



In order to do this, it will be well to recall Dr. Boisduval's* 

 description of what he named Kermes camellice. It must be re- 

 membered that he divides the f amily t of Ooccidcs into two genera only, 

 viz., Chermes and CocJiinelles. In the former he includes what are 

 now classed as sub-families, Diaspince and LecanincE, and in the 

 Gochinelles he includes the sub-family Coccince. 



In his " Entomologie Horticole " (1867), p. 334, Boisduval writes 

 thus : — 



" Ce petit insecte est allonge, ovale, lineaire, un peu deprime, d'un brun roux, 

 Bouvent legerement arque, rappelant un peu par sa forme la Kermes coquille si com- 



* Ess. sur VEnt. Hort. (1867), p. 334. t op. cit., p. 301. 



