338 15RITISH ICHNEUMONS. [S/ic/opis/hiis 



J5ij;ncll iVcnn Xoi/iin hianguUim througli Macrocentrus collaris (Kntom. 

 18S3, p. 67) and Xvlina rhizolilha through i\/acroanlnis thoracicus (Bridg. 

 I.e.). Also bred early in Jul)' from Pctasia cassinea through Apanichs fiil- 

 vipes and in the middle of the same month from Diloba caniihoccphala 

 through Apanteks difficilis, in Devon (Bignell, List), as well as from A7ti- 

 phydasis prodromaria through the last named Braconid (Buckler, vii). 



4. convexicollis, Thoins. 

 Sficfopistliiis convexicollis, Thoms. Ann. Soc. Ent. France, 1SS5, p. 344, j 5 . 



Black, with the mcsonotum somewhat convex and finely punctate. 

 Length, 3-4 mm. 



Similar and allied to S. laticeps, but with the head less broad and pos- 

 teriorly hardly narrowed, the 9 face centrally infuscate, the antennae 

 more slender, mesonotum more finely punctate, pleurae smooth and 

 nervellus nearly vertical. 



Described from Sweden. Bred at Norwich from a leaf-rolling larva, 

 found on a hazel bush (Bridg. Trans. Norf. Soc. 1894, p. 623 ; cf. Trans. 

 Ent. Soc. 1886, p. 354). 



