A SYNOPSIS OF BEITISH PROCTOTRYPIM: (OXYURA). 185 



Table of Species. 

 (2). 1. Terebra distinctly exserted ; radial cell of <? short. 



/i\ ■ n' m i ■*•• apterogynus, Hal. 



(1). A. lerebra not exserted ; radial cell of <J elongate. 



2. Bethyliformis, Kf. 



1. Paracodrus apterogynus, Hal. 



Proctotrupes apterogynus, Hal , I.e., p. 15, $ ? . Codrus 



apterogynus, Ashm., Bull. U.S. Nat. Mus., 1893, p. 344, pi. xiii, 



fig. 8. Paracodrus apterogynus, Andre, I.e., p. 276. (?) Codrit* 



apterogynus, Voll., Z.c, p. 28, pi. xviii, figs. 1 and 2, $ ? . 



That the female is sometimes fully winged has not before 

 been noticed ; this form differs in no way but in the thoracic 

 modifications usual in such cases from the commoner apterous 

 form, and the neuration is exactly as in the male, which is by far 

 the rarer sex. I find that I beat a specimen of the macropterous 

 female from bushes in the village of Depden at the verv highest 

 point (420 ft.) of Suffolk on September 24th, 1907 ; and that 

 the late Mr. Albert Piffard has given me a second, unnamed, 

 collected by him at Felden, taken upon the top of a dry hill 

 bearing such herbage as Genista anglica, etc., above Boxmoor 

 station in Herts ; though an example, labelled by Chitty " astig- 

 maticalis, sp. nov.," was found by the latter on September 24th, 

 1904, in the Sheppy marshes of East Kent — perhaps an inland 

 form, carried in the last instance by the wind. 



P. apterogynus was originally discovered by Francis Walker 

 near London and on the south English coast between June and 

 September (Haliday). I have heard of no records later than 

 1839, and it is still unknown on the Continent. With us the 

 species is distinctly uncommon, and my collection contains 

 hardly a score of specimens captured between July 19th and 

 October 7th ; it is certainly an autumn insect, commonest in 

 August and September. It has usually occurred to me in very 

 marshy situations on Lythrum salicaria, by the river Gipping, at 

 Ipswich, in 1898, by the Gipping at Claydon, in a marsh at 

 Ashfield Parva and a moist wood at Wangford, near which it has 

 several times turned up on the coast at Southwold and Easton. 

 Other Suffolk localities are Corton. near Lowestoft, where it was 

 running on bare sand, half way up the face of the cliff in 1898 

 (Elliott); Monks. Soham, where it was swept in a pasture con- 

 taining an old moat in 1909 (Newbery), and the Bentley Woods ; 

 Felden, in Herts, and Hursthill, in the New Forest (Morley) : 

 Malvern, in Worcester, during 1905 (Gorham) ; and Battle m 

 Sussex, during August, 1881 (Butler). 



Nothing has hitherto appeared respecting its economy. The 

 Irish National Museum in the autumn of 1919 sent me an 

 apterous female of this species for determination, with the 

 intimation that it had recently been bred along with identical 



ENTOM. — AUGUST, 1922. R 



