186 



TacMmus pallipes taken in Nortlvu/rriherlcmd. — Amongst my unexamined captures 

 of this year, I find three specimens agreeing in every respect with Mr. D. Sharp's 

 description of Tachimos pallipes. Two of these were taken in Gosforth Woods, and 

 the other near Bothall ; in both instances in fiingi, and in the first week of October. 

 In all probability it will be found common enough here, for when I took these I 

 noticed several others, and let them go, thinking them to be only T. rufipes : but 

 the pale margins of thorax, and armature of abdomen, leave no doubt of their being 

 very distinct from that insect. — T. J. Bold, Long Benton, 3rd Dec, 1864. 



Aquatic habit of a Eymenopiteron. — As I was entomologizing in Sutton Park 

 three or four years ago, in the latter part of June, I saw a Hymenopterous insect 

 deliberately crawling along the stones under the water at the bottom of a shallow 

 stream which runs there. I thought that I had killed it by pressing it with my 

 finger against the stones, but it only feigned death, and on my taking it out it flew 

 away. It looked much like Pompilus plumheus, and at the time was referred by me 

 to that group ; there can be, however, little doubt that it was an ichneumon fly on . 

 the look out for caddis worms. — R. C. R. Jordan, M.D., Edgbaston, Birmingham. 



[This insect was probably Agrioiypus armatus, an ichneumon which infests the 

 larvae of the Trichopterous genera Goera and Odontocerus. — R. McL.] 



*Trom'bidAum lapidum, Hermann. — It is figured together with the pretty little 

 flattened eggs iu' Hermann's " Memoire apterologique," pi. 7. His figures of this 

 species, both in the adult and immature form, are good, and the delineations of the 

 eggs excellent. 



When the acari are immature they have only six legs, and differ considerably 

 from the adult specimens, which have always eight. 



It is also described under the generic name of Tetranychus by Duges in the 

 " Annales des Sci., Nat.," and by Paul Gervais in " Walckenaer's Hist. Nat. des 

 insectes apteres," Tom. iii., p. 167, who says that it is found in diff'erent parts of 

 France on stones and leaves, and that in the autumn the eggs may be seen in Paris 

 on the stones of the public promenades. 



Koch, too, mentions it in his " Ubersicht des Arachniden Systems," 3 Heft., 

 p. 57, and calls it Raphignatus lapidum. 



I may add that at the beginning of October, after receiving your letter with 

 the acari and eggs, I foimd some of the latter myself on a stone in a garden near 

 Bicester, in Oxfordshire. — R. H. Meade, Bradford. 



Note on Gelechia humeralis (Lyellella of Dbl. Cat.). — While beating beech on Epping 

 Forest late in September, 1 disturbed three Gelechia, very fine specimens ; I recog- 

 nized one of them as G. humeralui, but the other two quite puzzled me at the time ; on 

 examining them at home, however, they proved to be most beautiful varieties of the 

 same insect. I had previously captured two on the 2nd August, so that the time of its 

 appearance would seem to last for some time, and it most probably passes the winter in 

 the imago state. — William Machin, Argyle Road, Mile End. ^ 



[Vide Mr. Barrett's notes on this species at page 170.] i|| 



* The ubove communication (received tlirouRh Mr. W. F. Kirby) was not published simultaneously 

 with one from Professor Westwood ujion tlie same subject, as the Editors had not at the time the 

 requisite permission to do so. ' 



