1889.] 349 



N.B. — Kolbe's I. maroccana, from Casablanca, must be very closely- 

 allied, if distinct. His description is chiefly comparative with senega- 

 lensis, the only allusion to Qraellsii being that the superior appendages 

 of maroccana are " spitzer " than in the former : I find no difference 

 m this respect between examples of Qraellsii from Marocco and 

 Portugal. He calls attention to a peculiar character on the dorsum of 

 the second abdominal segment of the $ , which I give in his own words — 

 " auf dem Riicken vor dem Hinterrande eigenthumlich zweimal quer 

 eingedriickt und mit einem Hocker zwischen dem beiden Eindriicken." 

 This agrees precisely with all my $ of Qraellsii, and is a valuable 

 character entirely overlooked by previous authors, at once isolating 

 the species from the otherwise allied senegalensis, Qenei, and elegans. 

 In recording my doubts as to the distinctness of maroccana, it is but 

 just to say that I have not seen the types. 



\_Agrion puella, L. — Tangier, Blackmore.'] 



\_Agrion Lindenii, Selys. — Tangier, Blacfanore.~] 



Pyrrliosoma tenellum, Villers. — Esmir, 25th July ; 1 $ . 



Lewisham, London : 



June, 1889. 



OBSERVATIONS ON COCCIDM (No. 5). 

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



I am indebted to Mr. Douglas for a great many specimens of 

 Coccidcs which he has sent to me from time to time, either for determi- 

 nation of the species or for my information, and it will perhaps now 

 be convenient to give a list of the plants and of the species found 

 upon each. 



Pieces of bark of apple, plum, and cherry — Mytilaspis pomorum and Aspidiotus 

 ostreceformis. 

 ^ Anthurium Harrisii (from Royal Gardens, Kew), and Ccelogyne cristata (Mr. 

 O'Brien and on orchid from Kew) — Aspidiotus ficus. 

 Orchid (name not furnished) from Mr. P. Cameron- — Diaspis Boisduvalii. 

 / Mango leaf from Demerara, sent by Mr. S. J. Mclntire — Diaspis rosce, Ischnaspis 



filiformis, and Aspidiotus personatus. 

 y Areca lutescens (Royal Botanic Soc. Gardens) — Mytilaspis buxi, Sign., = ? Mytil- 

 aspis pandani, Comst. 

 Anthurium aeaule (Royal Botanic Soc. Gardens) — Fiorinia pellucida, Targ.-Tozz., 

 = ? Uhleria camellia, Comst. 

 i/ Orange (from Demerara), Mr. Mclntire — Chionaspis citri. 



r Anona cherimolia (Kew), and A. muricata (Royal Botanic Soc. Gardens) — Chionas- 

 pis biclavis. 



