34 ROEBUCK : ON YORKSHIRE ICHNEUMONIDiE. 



Diastrophus rubi (see 'Field,' 12th June, 1875). 



Aulax sabaudi, Hartig, was added to the British list on 

 the authority of Mr. Peter Inchbald, who described specimens 

 from Scarborough (E.M. M., July 1865, ii. 46, and Marshall, 

 E.M.M., May 1868, iv. 274). 



Fa?mly EVANIID^. 

 Four genera and 7 species enumerated as British in 1872 by 

 the Rev. T. A. Marshall (Ent. Soc. Cat. of British Hymenoptera). 



Parasitic on cockroaches. 



Fajmly ICI-INEUMONID.F. 



In 1872 the Entomological Society pubUshed a 'Catalogue 

 of British Hymenoptera; Chrysididse, Ichneumonidse, Braconidse, 

 and Evaniidse' — by the Rev. T. A. Marshall, M.A., F.L.S., (price 

 2/-), which in the absence of any monograph or descriptive work, 

 will stand as the basis for the investigation of these groups and as 

 a guide to their literature, which is unfortunately difficult and 

 much scattered. In this catalogue are enumerated 11 86 species^ 

 distributed among 136 genera and the 6 subfamilies Ichneumon- 

 ides, Cryptides, Agriotypides, Ophionides, Tryphonides, and 

 Pimplides. 



The foundation of the literature of this group is Gravenhorst's 

 'Ichneumonologia Europ^a,' 3 vols. (1829). Superstructures 

 have been raised upon this classical work by Wesmael, by 

 Taschenberg, who revised the Gravenhorstian types, by Ratzeburg 

 ('Die Ichneumonen der Forst-Insecten,' 1844-52), by Desvignes 

 ('Catalogue of British Ichneumonidfe' in the British Museum, 

 1856, price 1/9), and others. The Swedish monographs by 

 Holmgren are numerous and indispensable to the British student. 

 The principal are: — his Ichneumonologia Suecica, 2 vols., 1864 

 and 187 1, which is of primary importance for Ichneumon proper; 

 Monographia Ophionidum Suecige, 1862; Ophionidslagtet Ano- 

 malon, 1857; Om de Skandinav. arterna af Ophionidslagtet 

 Campoplex, 1872; Monographia Tryphonidum Sueciae, 1856; 



Trans.Y.N.U., 1877. Series D 



