144 KEEMES QUERCUS. 



obtusely-pointed spine, and a long, spine-like hair. 

 Character of anal orifice doubtful, but there are traces 

 of (? 6) spines on the posterior portion of the orifice, 

 and there are two slender spines a little anterior to the 

 latter. Mentum biarticulate ; filaments extremely 

 long. 



Male puparium (fig. 2) a white, felted, elongated 

 sac, 1*50 mm. long. 



Habitat. In the crevices of the- bark of the oak 

 (Quercus robur). This most interesting addition to our 

 fauna was discovered by Mr. Harold J. Burkill, at the 

 foot of the S.-W. slope of Wimbledon Common, near 

 the Beverley Brook. The first batch of specimens 

 reached me through my friend Mr. George Nicholson, 

 to whom, I believe, they were sent as vegetable galls. 

 On hearing of the importance of his discovery Mr. 

 Burkill made several expeditions to the locality, 

 obtaining a further supply of specimens, and also some 

 important information with regard to the local distri- 

 bution of the species. In his first communication, 

 dated 22nd May, 1902, he says that the scale-insect 

 " was on the trunks of three trees, all near together, 

 but not on some of the trees in between these, and 

 seemed to extend from about three to eight feet from 

 the ground. The trees were on the small side in 

 development, the trunks being about ten inches or 

 slightly less in diameter, and the insects were to be 

 found all round the trunk and not restricted to one 

 special aspect. I should estimate the number at about 

 100 to 120 on the three trees. My second visit, when 

 I got the specimens sent to you, was a very hurried 

 one in a bad light, so there may be other trees attacked 

 that I was near, but did not notice." In the second 

 letter, dated 18th June, Mr. Burkill adds : " I have 

 been to the locality the last three Sundays. . . There 

 are a good number of trees infested I should think I 

 have seen the old skins of the insect on forty or more, 

 but many likely-looking trees in the same area seem to 

 be free, and where the trees are more exposed the 



