1893.] ■ 207 



[P.S. — My note {ante p. 138) has brought to light some interesting 

 material. Mr. C. W. Dale looked in vain for a further supply of 

 Lecanopsis formicarum ; but at my suggestion, however, he kindly 

 forwarded a specimen of what he recorded in this Magazine as 

 Ripersia TomUnii, Newst. (vol. xxviii, p. 219), which, after treatment 

 with potash, proved identical with the above ; the specimen only 

 differing from the types in having a few long white filaments on the 

 dorsal surface of the last four or five segments. These seem to 

 suggest the formation of a sac, but I fail to obtain further evidence 

 that such is the case. By almost tbe same post that brought Mr. 

 Dale's specimen I received several specimens of a large Coccid from 

 Mr. Luff, of Gruernsey, which he had found under stones in ants' 

 nests. These were each enclosed in a sac of thick white felting, except 

 at the cephalic extremity, where the body of the $ closes it, as in 

 Signoretia, JEriopeltis, and LicJitensia, but drops out after laying its 

 eggs. I at first thought that Mr. Luff's specimens were a more ad- 

 vanced stage of the Lecanopsis, but I have no conclusive proof that 

 they are. The antennae of Mr. Luff's specimens are eight-jointed as 

 in the above, but they are very different in structure : the latter are 

 like those of a Lecnnium, those of the Lecanopsis most like those of a 

 Alonoplilehid For the present I am inclined to think Mr. Luff's 

 specimens are referable to Giard's Spermococcus fallax (Bullet. Ent. 

 Soc. France, 10 Mai, 1893), of which I will give a more detailed 

 account later. I can only add how very grateful I am to Messrs. Dale 

 and Luff for the trouble they have taken in searching for the speci- 

 mens. — July -22,113,, 1893]. 



PHTSOKERMES (Targioni-Tozzetti), Signoret. 

 Phtsokeemes abietis. 



Chermes abiefis rotundus, Greoffroy, Hist, abreg. Ins. (1764), ii, 507, 7. 



Coccus abietis, Mod., Grotheb. Vetens. Handl. (1778), i, 27, 20 ; Gmel., Syst. Nat., 



i, 2221, 32 (1791). 

 Lecanium abietis, Signoret, Ess. Cochen., 273, 50. 

 Coccus picecF, Schr., Fauna Boica (1801), 146, 1271 ; Boisduval, Entom. Hort. 



(1867), 320. 

 Coccus liemicrt/pTius, Dalm., K. Vet. Acad. Handl. for 1825, p. 369, 6, tab. iv, figs. 



18 — 27. Physokermes hemicryphus. Sign., Ess. Cochen., p. 280, pi. xiii, 



figs, i — ic. 

 Coccus (Lecanium) racemosus, E.atz., Stett. Ent. Zeit., iv, 204; Forstins., iii, 191, 1. 

 Lecanium racemosum, Goureau, Ins. nuis., 159. Signoret, Ess. Cochen., 275, 52, 



pi. xii, fig. 16. 



$ adult, dark, or light reddish-brown; parasitized specimens generally much 

 ptder ; form very variable, and according to position on the food-plant ; generally of 



