1903.] 



241 



'96b. 



'02a. 



'02b. 



96a. Saunders, E. — The Hjmenoptera Aculeata of the British Islands. London, 

 1896. 

 „ —Rare Diploptera in Dorsetshire. Ent. Mo. Mag., vol. xxxii, 

 1896, pp. 212—13. 

 „ „ — llynienoptera collected by Col. Yerbury in S.W. Ireland in 



1901. Ent. 3Io. Mag., vol. xxsviii, 1902, pp. 51—5. 

 „ „ —Wasps in Ireland and Berkshire : a Specific Comparison. 



t. c, pp. 223—4. 

 '53. ScHENCK, C. F.— Beschreibung der Nassauischer Arten der Familie der 

 Faltenwespen. Jahrb. Vereinsf. Naturk. Nassau, vol. 

 ix, 1853, pp. 1—87. 

 '61. „ „ —Die deutscheu Vesparien. Id., vol. xvi, 1861. 



'81. ScHMiEDEKNECHT, O. — Ueber einige deutsche Vespa-arten. Entom. Nach., 



vol. vii, 1881, pp. 313—318. 

 '99. Sladen, F. W. L. — Bombi in captivity and Habits of Psitliyrus. Ent. Mo. 



Mag., vol. xxxv, 1899, pp. 230—4. 

 '43. Smith, F.— Descriptions of the British Wasps. Zoologist, vol. i, 1843, pp. 

 161—171. 

 ,, „ — Descriptions of New Species of British Bees [Notes at end]. 



Id., vol. vii, 1849, p. Ix. 

 „ „— Catalogue of British Fossorial Hymenoptera, Formicidse, and 

 Vespidae in the Collection of the British Museum. London, 

 1858. [pp. 218—19]. 

 Thomson, C. G.— Hymenoptera Scandinavise. Vol. iii. Stockholm, 1874 

 (p. 22). 



'49 



'58 



'74 



Fig. 



Explanation of Piate IV. 



face view. ^ 



IV. 

 T. / 



6. 

 Ti. 



7. 

 vii. 



Head of typical male Vespa rufa, 

 „ „ V. austriaca, 



Heads of varieties of male F. rufa, face view. 



Heads of varieties of male V. austriaca, face view. 



Magnified 4 

 times. The hairs 

 are omitted in 

 order to show the 

 markings more 

 clearly. 



Armature of typical male V. rufa, ventral view. 



,, „ V. austriaca, „ 



St., stipes ; sa., 

 united sagittse ; 

 a,b, internal and 

 terminal processes 

 of stipes. Magni- 

 fied 8 times. 



Internal process on stipes of male armature, V. rufa. ~) Magnified 16 



V. austriaca. ) times. 



