124 [June, 



Bpecimen, together with its cocoon and hyperparasite, were found by 

 Mr. Donisthorpe, and recorded by him in the Ent. Rec. x, 306, from 

 Chiddiugfold.* Mr. Beaumont swept a macropterous ? from herbage 

 at Boxhill, on May 13th, 1893. 



It is premature to conjecture the general frequency of the species 

 in Britain, but this would, doubtless, to a great extent depend upon 

 that of its hosts in any particular year. Thus we find (Proc. Ent. 

 Soc. Lond., 18G5, 62) that in 1864, a strong wasp-year, Mr. S. Stone 

 opened, at Cokethorpe Park, one hundred and ten wasps' nests, in- 

 cluding those of Vespa germanica, P., vulgaris, L., rufa, L., sylvestris, 

 Scop., and crahro, L., only two of which contained Sphegopliaga ; these 

 were opened on August 19th and 24th, in both cases occupied cocoons 

 only were present, and in both cases, too, as well as previously in 

 1859, the host proved to be Vespa vulgaris. 



CHRONOLOGICAL LIST OF AUTHORS CITED. 



KiEBY Bridgwater Treatise, ii, 334 (1824) 1835 



CuETis Brit. Ent., pi. et fol., 198 (Descript.) 1828 



Hope Proc. Ent. Soc. Lond., p. iii (177) 1838 



Westwood Mod. Class. Insect., ii, Synops. 57 1840 



Desvignes Cat. Ichn. Brit. Mus., 47 1856 



Ratzeburg Ichn. d. Forst., iii, 128 (Descript.) 1844—52 



Smith Brit. Fobs. Hjmen., 218 1858 



Stone Zoologist, xx, 7974 1862 



Westwood.. Proc. Ent. Soc. Lond., p. 77 1862 



(Stone) Proc. Ent. Soc. Lond., 62, ef seg 1865 



Marshall Ichn. Brit. Catalogue, 19 1870 



Marshall Cat. Brit. Hymen., 79 1872 



Andre Spp. Hymen. d'Eur. (Descript. larva and pupa)... 1881 



Bignell Ent. Mo. Mag., xxvi (2 ser. i), 191 1890 



Bridgman Tr. Norf. Nat. Soc, V, 627 1894 



Donisthorpe Ent. Rec, X, 806 1898 



Bignell ,. (Ichn.) Tr. Devon. Ass., xxx, 498 1898 



Ipswich : February, 1900. 



P.S. — In a box of Ichneumonidce sent for determination by Mr. 

 A. H. Hamm, of Oxford, I find a fine ^ of this species which has the 

 orbits of the eyes, the anterior margin of the mesothorax narrowly, 

 and the whole of the lateral margin, bright flavous. It is fully winged, 

 and was taken at Wellington College, Reading, on June 2nd, 1898. 

 It should have been noticed that Marshall used '' Specophaga,'' w^hich 

 is the more correct form. — C. M., April 2Qth, 1900. 



* Since writing the above, Mr. C. O. Waterhouse has kindly shown me many more cocoons, 

 taken at the same time, from which he had bred a macropterous 9 vesparum, together with 

 several specimens of the undetermined hyperparasitic Braconid. These are in the British 

 Museum. 



