BRITISH ICHNEUMONS. 



Confirmation of the right of this beautiful species in our native list j's 

 certainly most requisite. Desvignes, whose accuracy is not always beyond 

 necessitating investigation, included it in his 1856 Catalogue on the 

 strength of an example in his own collection ; subsequently Fitch ap- 

 parently examined this specimen in the British Museum, and says it 

 is " certainly not iapidator." There the matter rests ; I know of no 

 indigenous records. On the Continent, it occurs in Sweden, Russia, 

 Germany, Prussia, France and Spain. 



Since writing the above, I have found a ? in Mr. F. W. Sladen's 

 collection, which removes all doubt, since it was captured at St. Margaret's 

 Bay, on 21st July, 1898, on a flower-head of Ceniaurea scabiosa, on the 

 top of the cliff, and about a yard from its edge, in company with many 

 aculeate Hymenoptera. 



TRIBE. 



JOPPIDES. 



A part of the Joppides constituted Forster's twenty-seventh family, that 

 of the Trogoidae, which was distinguished by its pyramidal scutellum ; 

 and the latter section is culled from the genus Ichneumon of Linnaeus, by 

 Thomson, on account of the deep sulcus which divides the metanotum 

 from the scutellum and is due to the greater development of the wing- 

 muscles, but which nevertheless appears a constant character, the presence 

 of a basal metathoracic area being strong evidence of a sulcus in the 

 ancestral type. Thomson's divisions are now coming into general adoption, 

 and it is well to seize with avidity any good feature which goes to assist 

 in simplifying the great father's, or rather Gravenhorst's, most unwieldy 

 genus, so natural and asymmetrical in its contour and facies, so incon- 

 gruous in its sexes and colour. 



Tabic of Gcncj-a. 



(10). I. Scutellum strongly convex ; metanotum short ; areolet usually rhom- 

 boidal. 



(9). 2. Central segments not deeply incised, 

 and not laterally margined. 



(8). 3. Labrum not concealed ; areola nor- 

 mal ; areolet sub-pentagonal. 



(7). 4. Scutellum immarginate ; mandibles 

 slender ; apophyses acute. 



(6). 5. Clypeus apically truncate ; hypo- 



pygium not covering- terebra i. HOPLIS.MENUS, G^;-(iZ/. 



(5). 6. Clypeus apically emarginate ; hypo- 



pygium covering terebra 2. HvBOPHORUS, T/'jt//. 



(4). 7. Scutellum laterally margined ; man- 

 dibles stout ; apophyses obtuse ... 4. Autom.vlus, Wcsin. 



(3). 8. Labrum concealed ; areola tuber- 



culate ; areolet rhomboidal 5. Trogus, Pan::. 



(2). 9. Central segments deeply incised, and 



laterally margined 3. DiNOTOMUS, Forst. 



(i). 10. Scutellum not strongly convex ; me- 

 tanotum normal ; areolet pen- 

 tagonal. 

 (12). II. Metathoracic juxta-co.xal and pleural 



areae confluent 6. Protichneumox, Thorns. 



(11). 12. Metathoracic juxta-coxal and pleural 



areae discreted 7. Coelichneu.mon, 77/(>;//.v. 



