112 THE ENTOMOLOGIST. 



varieties. Scotica (Eobson) appears to me to be but a form of 

 this leading variety, and corresponds with the dark form of 

 prceclara, which I have here spoken of as nigra. 



Var. artemis seems to be confined with us to southern 

 England and South Wales. I have seen no northern English 

 or Scotch specimens that I could refer to it, and I have never 

 seen anything approaching it from Ireland. It seems to vary 

 towards aurinia only. 



Var. prceclara is the Irish form, and appears to be confined 

 to that country as far as I know. It varies from aurinia, through 

 many phases, to the extreme forms virgata and nigra. The latter 

 corresponds to the scotica form of aurinia, and in these the two 

 leading varieties approach each other, the chief difference being, 

 that that of prceclara always retains the light markings very 

 whitish, no matter how much they may be reduced by the 

 extension of the black parts. 



A NEW COCCID OF THE GENUS ASTEROLECANIUM 



FEOM EGYPT. 



By T. D. a. Cockerell. 



Asterolecanium pustulans (Ckll.) var. samhuci, n. var. 



? . Scale about 1^ mm. diameter, almost circular, slightly convex, 

 pale yellow, with a rather long dense very pale pinkish fringe. 



?. Mouth-parts browuish, diameter about 60 /x; scattered large 

 figure-of-eight (double) glands in the skiu, diameter of a gland 12 /x; 

 margin with two rows of simple glands and one row of double, the 

 simple glands at intervals of about 9 /x, the double glands about 9 /* 

 diameter and 3 (rarely 6) ft apart. 



Hab. On bark of Samhucus, not producing pits. Le Caire 

 (Cairo) Egypt ; received from Dr. P. Marchal, who received it 

 from M. Vayssiere. The scale is quite like that of A. pustulans, 

 there is practically no external difference. The double glands of 

 the margin are larger and very much closer together than in 

 A. pustulans. The species of Asterolecanium differ in the arrange- 

 ment of the marginal glands. In some species (as A.fimbriatum, 

 A, ventruosum, A. algeriense, and A. viridulum) there are two 

 rows of double glands; in others (as A. pustulans, A. townsendi, 

 A. ilicis, A. ilicicola, and A. petrophilce) there is only one row. 



A. pustulans samhuci is very likely a valid species, but it is so 

 near to pustulans that I treat it as a variety for the present. It can 

 be distinguished from A. ilicis by the fringe, and the double 

 glands of the margin being close together. A. ilicicola occurs 

 on leaves, and has only one row of simple glands. 



East Las Vegas, New Mexico, U.S.A. : Jan. 6, 1903. 



