20 THE entomologist's RECORD. 



R'vanftia merem, Cambr. — I found specimens in a nest of Formica 

 fttsca, at Nethy Bridge, in September. 



Micarisonia festiriis, C.K., was taken in company with F. fusca, in 

 the New Forest, in May, as was also Haipactes homhenii, Sep. 



Dibh'inma donisthnrpei, Cambr. — This little species was described"'- 

 from specimens taken by me at Kew Gardens, with the little ant 

 IVa-vnannia aurnpiinctata, to which it bears a stong superficial resem- 

 blance. I found it in some numbers in February and March. 



Salticiis fornricaruts, Walt. — I took a <? and two $ s of this very ant- 

 like spider, running about in company with Mynnh-a scabrinodis, at 

 the roots of Lotus viajor, at Sandown, Isle of Wight in August. 

 Father Wasmann records it in the neighbourhood of F. nifa, F. rufiharbis, 

 and Mynnica laevinodis, in Holland. 



AcARiNA. — Laelaps myrwecophilns, Berl. — I found this species in 

 April at Dartmouth, with Mynnica rtu/inodis. 



Laelaps cuneifcr, Mic. — I took this species this year with Formica 

 rufa, at Knowle in May, and F. fusca at Bewdley in May, and 

 with F. Hanyuinea at Woking, in July. Berlesef records it over the 

 whole of Europe, and in America, with many different species of ants. 



hropliteUa miniitissima, Berl. — I found this little species in some 

 numbers in nests of Lasius niger at Kingswear, in April. 



Trachyuropoda coccinea var. sinaata, Berl. — I took this variety, 

 which is new to Britain, in plenty, in company with the last species, 

 in nests of Lasitis niyer at Kingswear, in April. 



Sphaerolaelaps holothyroides, Leonardi. — I took a specimen of this 

 mite, which is here recorded for the first time in Britain, in a nest of 

 Lasius umbratus at Bewdley, in May. The mite is the same colour as 

 the ant, and, when it moved, it looked liked the abdomen of an ant 

 walking about by itself. Berlese records it with Lasius affinis, L. u)nbratus, 

 L. fiarus, and Phcidole pallid ula. My friend. Dr. Joy, tells me he used to 

 see this species at Wellington College, with Lasius uuibratus. 



CocciDiE. — Ripersia subterranea, Newst. — I took this species in some 

 numbers in a nest of Lasius niyer under a large stone at the mouth of 

 the Dart, near Dartmouth, last April. It has only been taken in Britain 

 before at Ingoldisthorpe, near King's Lynn, by Mr. Newstead, with L. 

 flavus, and with the same ant near Edinburgh, by Mr. W. Evans. I 

 have to thank my friend Mr. E. Green for the name of this species. 



Explanation of Plate II. 

 Fig. 1.— Imago of Microdon mutabilis. 

 Fig. 2. — Pupa of Microdon intitahilis. 

 Fig. 3. — Larva oi-Microdon mutabilis. 



::^OTES ON COLLECTING, Etc. 



Pairing-habit of Petasia cassinea. — On October 31st, 1908, I 

 observed two Petasia cassinea sitting on a gate-post m co/j^Z^/, in Ashton 

 Wold, where the species is common. As I approached they fell to the 

 ground, where they remained on their backs feigning death. Has this 

 habit been noticed before ? — N. Charles Rothschild, F.E.S., 5 and 6, 

 Chelsea Court, Chelsea Embankment. November 25th, 1908. 



Hybernation of Pyrameis atalanta. — With regard to the hyber- 



* Proc. Dorset. Nat. Hist, and A. F. Club, vol. xxix., 1908. 

 f Redia, vol. i., p. 416. 



