14 the kntomologist. 



8370. Phytometra gamma, L. 



Plusia gavima, E.S.L., p. 10; M., p. 158; T., iv, p. 31; 

 M.B.I., ii, p. 72. 



8389. Phytometra bractea, Schiff. 



Plusia bractea, Fb., E.S.L., p. 10 ; M., p. 157 ; T., iv, p. 26; 

 M.B.I., ii, p. 67. 



8407. Phytometra variabilis, Piller. 



Plusia illustns, F., M., p. 156 ; T., iv, p. 23. 



8426. Phytometra chryson, Esp. 



Phisia chryson, E.S.L., p. 10 ; T., iv, p. 25 ; M.B.I., ii, 



p. 66. 

 Plusia orichalcea, F., M., p. 157. 



8429. Phytometra chrysitis, L. 



Plusia chrysitis, E.S.L., p. ]0; M., p. 156; T., iv, p. 24; 

 M.B.I., ii, p. 65. 



8436. Abrostola tripartita, Hufn. 



Habrostola tripartita, E.S.L., p. 10. 



Plusia tripartita, M., p. 159. 



Abrostola tripartita, T., iv, p. 16 ; M.B.I. , ii, p. 74. 



8438. Abrostola triplasia, L. 



Habrostola triplasia, E.S.L., p. 10. 



Plusia triplasia, M., p. 161. 



Abrostola triplasia, T., iv, p. 16 ; M.B.I., ii, p. 73. . 



8445. Episema c^ruleocephala, L. 



Diloba cceruleocejjliala, E.S.L., p. 5 ; M., p. 56 ; T., i, p. 12 ; 

 M.B.I. , i, p. 265. 



DIPTEPiA IN NESTS OF CRABRO. 

 By Eustace F. Wallis. 



Whilst sawing up a large, rotten elm trunk, I noticed a 

 number of old burrows of two or more species of Crabro, and 

 was much interested in the great variety of species of Diptera 

 with which they were provisioned. 



I know very little about the Hymenoptera, but was under 

 the impression that each species of Crabro was supposed to 

 restrict itself to a single species — or at least genus — of Diptera, 

 but in most of the cells that I examined there was more than 

 one genus and always more than one species represented. 



Many of the cells were barren, no eggs having been laid in 

 them or the eggs having failed to develop. 



The burrows were of two sizes, one about 8 mm. in diameter, 

 and the other about 5 mm. 



At first I scraped out the contents of a number of cells 

 without any intention of further examination, and, as a strong 

 wind was blowing at the time, the flies were lost ; but when 

 I noticed a brightly coloured Sargus (probably S. flavipes) 



