192 THE ENTOMOLOGIST. 



June in Assington Thicks and the Isle of Wight, as well as at 

 Bungay, where Mr. Tuck has captured it ; the latter extends to 

 August, and has occurred to me on the banks of the Gipping 

 above Ipswich in two or three places, and in the New Forest. 

 B. tenuicornis I have only found at the beginning of June at 

 Barton Mills, and twice at Foxhall, in the marshes by sweeping 

 reeds. &c, ; and B. assimilis is found in both East and West 

 Suffolk quite by the beginning of May by general sweeping. I 

 have all but three of the remaining species of this subfamily, 

 which is strange, since most of them are but singly represented, 

 and they must all be uncommon. Scolioneura nana occurs in 

 the Bentley Woods in May and June, where it is accompanied in 

 the former month by >S. betuleti ; but S. vicina has only once 

 been found at Dodnash Woods, and then on September 16th. 

 The single Entodecta pumila I have seen is a female swept in 

 Rookley Wilderness, in the Isle of Wight, on June 27th, 1907, 

 but Monophadnus albipes is not uncommon from April to June in 

 Norfolk and Suffolk ; where M. genicidatus has sparingly turned 

 up in the Bentley Woods, and at Brockenhurst and Wilverley, in 

 the New Forest, in May and June. My only Kaliosphinga ulmi 

 was swept at the end of last May in a lane at Foxhall, and I 

 have but twice met with K, melanopoda, once in Barnby Broad 

 {cf. Ent. Mo. Mag. 1899, p. 209), and once at Diss, in Norfolk, 

 in June. My single Fenusa pygmcea was taken during my " Day 

 in Kirby's Country," June 10th, 1897 (c/. Ent. Mo. Mag. 1897, 

 p. 265), and my only F. nigricans swept in a very boggy spot, 

 among osiers, at Barton Mills, on June 12th, 1899. Of Fenella 

 nigrita I also have but one example, which was taken by quite 

 casual sweeping along the roadside where I have frequently 

 swept before, and since at Belstead, in Suffolk, on May 29th, 

 1902. 



The next subfamily is the Selandriades. 



(To be continued.) 



ON SOME BOKNEAN SPECIES OF TBIGONA 

 (APIDiE). 



By p. Cameron. 



The species of Trigona I have in my collection from Sarawak, 

 Borneo, may be separated by means of the following table : — 



1 (6). Entirely black species. 



2 (3). Base of wings blackish, the apex with 



white ...... collina, Sm. 



3 (2). Wings hyaline. 



4 (5). Apex of clypeus, mandibles, antennal 



scape, and tarsi black . . . canifrons, Sm. 



