182 THE ENTOMOLOGIST. 



C. secutor. — I swept one male in a marsh by the river at 

 Brandon, in Suffolk, 25th August, 1906. 



C. latrunculus. — My four examples were captured by Dr. 

 Capron at Shere, and Mr. Piffard at Felden. 



C. sulcatus. — The commonest of the small species, usually 

 occurring in marshy situations. Harting, 11th September, 1899 

 (Beaumont) ; Greenings and Reigate (W. Saunders) ; Felden, in 

 Herts (Piffard). I have found it from 8th June to 9th September 

 at Claydon, Brandon, and Barton Mills, in Suffolk, by sweeping, 

 and at the roots of Senecio Jacob cea. Mr. E. R. Bankes bred five 

 specimens from Asijclina ceratclla, Zell., at Shoreham, Sussex, 

 June 17th to 23rd, 1895. 



C. dispar. — The only specimen I have seen is a male, which 

 was running swiftly among moss at Foxhall, near Ipswich, 13th 

 September, 1903. 



ASCOGASTER, We SHI. 



Trochanters mainly red. 



Clypeus apically truncate and centrally mucronate 



1. instabilis, Wesm. 

 Clypeus apically rounded or emarginate. 

 Hind tibiae basally black. 



Hind tibiae white- banded centrally . 2. annularis, Nees. 



Hind tibiae not wbite-banded . . 3. ratzeburgi, Marsh. 

 Hind tibiae basally red. 

 Clypeus apically subbidentate ; hind tarsi basally 



white . . . . . . .4. riifipes, Nees. 



Clypeus apically emarginate; tarsi basally j 5. rujidevs, Wesm. 

 ferruginous. .... { 6. canifrons, Wesm. 



Trochanters black. 

 Mesonotum distinctly punctate. 



Clypeus apically mutic ... 7. variipes, Wesm. 



Clypeus apically bidenticulate . . 8. Incarinatus, U.S. 

 Mesonotum rugosely reticulate. 

 15. Abdomen only basally testaceous . . 9. elegans, Nees. 

 Abdomen not, or mainly, fulvous. 

 Frontal impression deep and laterally bordered 



10. armatus, Wesm. 

 (17) 18. Frontal impression shallow and not bordered 



11. quadridentatus, Wesm. 



Acrogaster instabilis. — Widely distributed. I possess several 

 taken at Felden by Piffard ; and single specimens at Ravens- 

 craig, on 17th June, 1899, by Dalglish ; and at Greenings, in 

 Surrey, in June, 1871, by W. Saunders. 



A. annularis. — I have only seen one male, captured by Mr. 

 E. A. Newbery in his house at Dartmouth Park, London, and 

 thought by him to be probably parasitic on clothes-moths (it has 

 been bred from (Ecophora lambdella in Devon). 



A. riifipes. — Rev. C. D. Ash gave me one in June, 1902, which 

 he had just bred from Aberdeenshire Euchromia flanwieana ; 



