1905.] 183 



fill oil blackthorn blossom ; and a small colony of Mehisis /ju^ire.sioides in tlecayed 

 hornbeam in February last. Crepidodera nilidula has recently occurred here on 

 aspen to Messrs. Collins and Holland. 



At Boars' Hill, not far distant, vpith a more sandy soil, JIarpalux discoideus is 

 soinclimes fairly common, and I liave taken rterostichus oblonyopunctatus, rather 

 plentifully among dead boughs, &c. (also at Bagley), Mister purpuruscen-s, Rhyn- 

 chiles inferpunctatus, Apiori conjiuens and affine, &c. 



Turning now to the Oxfordshire localities, at Ogley Bog, a very marshy valley 

 not far from the suburb of Cowley, Euhria palu.itris was taken sparingly in July, 

 1904, and again within the last few days, by sweeping on hot calm evenings in the 

 wettest places. Longliarsus holsaticus is common at times here (and at Cothill) 

 on Pedicularis palustrix, and Anthobium minidiun, Haltica lythri (abundant). 

 Limnoharis T-album, &c., have occurred by sweeping ; Lehia chlorocephala being 

 not rare in tufts of grass in the winter. 



A marshy place near Yarnton has yielded, chiefly by cutting tufts and shaking 

 moss in early spring, Aleochara breoipennis, Myrmedonia collar is, llomalota 

 languida (small form) and itisecta, Conosoma pedicularium ; many species of Stenus, 

 of which longitarsis, atratidus, hifoveolatus, and circularis, are the best ; Lathro- 

 bium filiforme (common), quadratum, and longiilum, Bryaxis impressa (common), 

 Phalacrus caricis, Thryogenes festuece, &c. Ochthebius bicolun and llydroporus 

 granularis abound here in shallow water, and in May last I took, in company with 

 abundance of H. variegatus, a Haliplus which I refer to the var. pa/lens, Fowler, 

 of S. conjinis. 



At Elsfield, Ceuthorrhynchus resedcB is not rare in Jnne on the Reseda luteola 

 growing in a small stone-pit, and I have taken here one C viduatus (and another on 

 the banks of the Thames near Grodstow), C. melanarius, Longitarsus Jlavicornis, 

 Apion vicinum, &c. 



The JDonacice find a congenial habitat on the banks of the Thames and 

 Cherwell, the most abundant being D. semicuprea, which swarms on the tall river- 

 side grass Olyceria aquatica, of which it nibbles the leaves in a very conspicuous and 

 characteristic fashion. D. affinis is fairly common in early summer on the same 

 grass, with, occasionally, D. thalassina and impressa. Later on D. dentata abounds 

 locally on Sagittaria, and crassipes is often seen on the leaves of the water-lilies, 

 being apparently most partial to those of Isuphar luteum. It is, however, so active 

 and wary that it is difficult to secure a good series without the aid of a boat. Of 

 the very rare Hxmonia appendiculata, there are two examples in the British 

 Collection of Coleoptera in the University Museum, taken on water-weeds at 

 Binsey, on the Thames ; but it has so far baflied Mr. Holland's efforts as well as 

 my own to find it "at home." 



" Aorangi," Lonsdale Road, 



Summertown, Oxford : 

 July IZth, 1905. 



