THE society's NOTE-BOOKS. 43 



ova. These had only six legs, one of the hinder pair being 

 missing (see Fig. VI). The abdomen of the mature female was 

 of a milk-white colour, and the legs reddish-brown. 



The males, which, compared with the females, were few in 

 number, were very peculiar in appearance. Their bodies were 

 smaller and flatter, and their legs longer and stouter in proportion 

 than those of the females ; the posterior pair were not used for 

 walking, but stretched out backwards, their extreme ends bent 

 inwards, and, as far as I could make out, not furnished with claws. 

 Their gait was extremely awkward. 



I visited this tree again in the middle of August, when I found 

 a number of Hypopi (see Fig. 5) with the White Mites, but 

 whether they were parasitic on them, or merely residing with 

 them, I was not able to determine. 



C. F. George. 



It would be interesting to know what are the lateral oval 

 markings shown in the figures illustrating the above paper. The 

 slide now exhibited bearing this name is labelled TyroglypJms 

 rhyzoglyphus, but I cannot quite reconcile this with the only 

 notice of these creatures I have by me, viz. : — Packard's Guide to 

 the Study of Insects, where, in a section devoted to the Arach- 

 nida on p. 665, 6th edit., he says : — "The genus TyroglypJms is 

 known by the body being elongated oval, with scissor-like man- 

 dibles, and outstretched four-jointed feet, with a long, stalked 

 sucking-disc at the end." 



The sucking-discs, at all events, I cannot make out, either in 

 the slide or in the figures in Science Gossips above referred to. 



A. Hammond. 



Larva of Corethra (Glass Larva).— I have just looked at a 

 specimen which I put up in water two years ago as recommended 

 by T. Rymer Jones, in his admirable paper in the Quarterly 

 Journal of Microscopical Science [cir,, 1874], and find it looks 

 nearly as fresh as when first put up. But I do not anticipate 

 " fixity of tenure " for it ; I fancy a little external violence would 

 disintegrate the specimen. A good description of this object will 

 be found in Lardner's " Museum of vScience and Art " (chap. 3, 

 pp. 90 — 94, on Microscopic objects), and he gives reproductions 

 of Dr. Goring's drawings of the larva and pupa ; also of the 

 image and eggs. I well remember the pleasure I experienced in 

 first taking a specimen and examining it with the very poor micro- 



