y/iree Sjjecies of Aphids ntw to Britain. — In August 19:20 Master A. 

 llodgL-r Wateistun, while on liolidiiy at Catiicol, Arran, found AinjJiurophora 

 rhinanthi Sellout. (Zqo\. Anz. xxvi, 1903, p. 087) on lihinaitthus cviita-yaUi. 

 In tile corresjjoiidiug montli of the followijii^- year I found it g-enerally 

 distributed throughout the North-East of Scotland. The presence of this 

 species is difficult to detect on account of its habitat— it is found inside the 

 seed-capsules of its host-plant, and no doubt this explains why it has not been 

 recorded since it w^as described by Schouleden from specimens he obtained in 

 Belgium, li/iinantlius majorj though frequently found growing side by side 

 with R. crisfa-f/alli, was not found to be affected. jSTothing is known regarding 

 the life-histor}' of A. rh iyianthi -^nov to the formation of the seed' capsules of 

 the food-plant. In Maj' 1021 I found on birch- trees in Ilichmond Park 

 Ilamcunelibtos betulae Mordw.*, and this year the species has turned up on 

 Wimbledon Common. The aphids cluster together on the under surface of the 

 leaf which beconies slightl}' concave and white from t!ie excretions of the 

 insects. Tullgren, in his monograph of the Pemphiyinae (Ark. f. Zool. 1909), 

 has dealt fully with this very interesting species, and English students may be 

 referred to that work for further information. Towards tii'i end of March of 

 this year, Mr^ C. L. Withj^combe brought me specimens of I'entalonia niyro- 

 jiervosa Coq., which he found on Alpiyiia rafflesiana in one of the glass-houses 

 in Kew Gardens. Originally described from Bourbon I.laud, it was reported 

 as being present in the United States in 1909 when Wilson (Journ. Econ. Ent 

 ii, 1909, p. 346) re-described and figured the species. — F. Laing, British 

 xMuseum (Nat. Hist.) : June 9t/i, 1922. 



"A PtEDESCltlPTION OP THK T\'PE SpeCIK8 OF THE GeNERA OF 

 COCCIDAE BASED ON SPECIES OIUGINALLY DESCRIBED BY MaSKELL." By 



IlAnoLB & Emily IMomuson. Proc. U.S. Nat. Mus. 60, pp. 1-20; 1922. 



This is one of the most important papers on Coccidae which has appeared 

 for a long time. Maskell, an occasional contributor to this Magazine, began 

 the study of the Coccidae when very little was known regarding the family, and 

 as he was a prolific writer over a Lnig number of years a proper conception of the 

 genera based on his species is of fundamental importance in the proper classifi- 

 cation of the family. The U.S. Nat. Museum authorities recognised this fact 

 and obtained the loan of the Maskell Collection from New Zealand. The 

 present paper is the first result of the examination of that Collection. The 

 types of 36 genera and one subgenus are redescribed and very fully illustrated ; 

 for reasons of space the adult $ and first-stage larva are alone dealt with. 

 CoccidoL. gists have been misled in many cases by Maskell, who had made 

 errors in his descriptions or misidentified material sent to him by other euto- 

 mologi.sts. This work will now cori'ect these misconceptions, and we are under 

 a debt of gratitude to Mr. and Mrs. Morrison for the able and thorough way 

 in which they have carried ont the task. They have confined themselves 

 mainly to the work in hand, but occasionally they express opinions as to. the 

 proper systematic position of a particular genus, and also regarding oilier 

 species subsequently included in a genus. 



* Unfoi-tunatoly when I wrote this, I overlooked the fact that Rhymer Eol)ert9 { item. & Proc. 

 Manchester Lit. & Phil. So?, lii, Ko. 9, 1H15) had recorded this species for Britain under the name 

 of Hiimamelisies iidljreni de Meij. 



