1878. 41 



yellow ; vfhU.eJ'iinc/ana has rounded fore-wiugs and dark grey cilia. But the most 

 conspicuous character is the square pale yellow blotch at the anal angle m postremana. 

 —Id. : June lOth, 1878. 



Aaheroniia Atropos in the County Cork. — I have to record the appearance and 

 capture of a specimen of A. Atropos at the same place (viz., Schull) as before chroni- 

 cled {vide vol. xiv, p. 158, ante). This specimen was captured at 9.30 on the evening 

 of June 8th last, and is now in my possession. — William W. Flemtng, The Vicarage, 

 Glengariff, Co Cork : June Hth, 1878. 



The Scandinavian Psyllida. — In the 8th fasciculus of his " Opuscula Entomo- 

 logica " (1877), Professor C. Gr. Thomson gives, more suo, a Synopsis of the 

 Scandinavian Psyllidce under the title of " Ofversigt af Skandinaviens Chermes- 

 arter," reverting to the name Chermes, under which Linne, in 1742, characterized 

 this Section of the Homoptera, and to which Greoffroy, in 1762, applied the name 

 Psylla, rejecting Linue's name as erroneously used, because Chermes, in ancient 

 time, designated the insect which afforded the famous Tyrian dye {Coccus ilicis, 

 Lin.) ; and there is no doubt that, on the ground of priority, Thomson is right in 

 his restoration, though, on the other hand, most authors have followed Geoffroy. 

 Thomson's object in this article is, he says, partly to recapitulate Zetterstedt's 

 species, and partly to divide the Section into small natural groups by means of 

 characters never before utilized for this purpose, namely, the form of the head, pro- 

 notum, elytra, and posterior coxas. As to genera, he adopts — Trioza (with Tricho- 

 psylla as a new sub-genus for T. Wal&eri); Chertnes vice Psylla (with, as sub-genus, 

 Atctnia vice Aryicena for C. genista, and Psylla for the other species) ; Aphalara, 

 Phinocola and Livia. To Zetterstedt is given the credit of having first pointed out 

 the essential character of the neuration of the elytra as of the greatest importance 

 both in distinguishing species and in grouping them. 



In Trioza 11 species are enumerated: — Walkeri,Yoevst.; galii, Yoerst.; obliqua, 

 n. sp. (near albiventris) ; dryohia, Flor; aculipennis, Zett., = Jemoralis, Mor ; 

 striola, Flor ; nigricornis, Foerst. ; urticce, Lin. ; viridula, Zett. ; proxima, Flor ; 

 and hypoleuca, n. sp. (near obliqua). 



In Chermes are 24 species: — genistce, Latr., = spartii, Hartig ; fraxiniy 

 Lin. ; fra.vinicola, Foerst. ; sorli, Lin.; fuscula, Zett., = alpina, Yoevst., ^ per- 

 spicillata, Flor; buxi, Lin. ; alni, Lin., ^ Heydeni, Foerst., =fuscinerms, Foerst.; 

 Foersteri, Flor, = viridis, Hartig, ^ alni, Foerst.; betulcB, Lin.; Zetterstedti, 

 n. sp. (very like salicicola in colour, rather smaller than betulce) ; lutea, Thoms., 

 =: saliceti, Flor {nee Foerst.) ; quercus, Lin., = costato-punctata, Foerst., = annu- 

 Ucornis, Boh. ; puncticosta, n. sp. (very like quercus, but much lai'ger and more 

 obscure in colour) ; pyri, De Greer (hitherto attributed to Linne) ; MjaZ/, Foerst. (Low 

 cites Schmidberger as the older authority for this name) ; annellata, n. sp. (like mali^ 

 but differing in the neuration and the genitalia) ; nigrita, Zett., = pulchra, Zett. ; 

 elegantula, Zett. ; obliqua, n. sp. (like the preceding, but differing in the neuration 

 and the genitalia) ; Sartigi, Flor, = sylvicola, Eeut. (Renter cites Lethierry) ; 

 microptera, n. sp. (like obliqua in form, and salicicola in the genitalia) ; pruni, Scop, j 

 saliceti, Foerst. ; and salicicola, Foerst. 



