ICHNEUMON-FLIES, PART 2: XORIDINAE 495 



Epixorides chalybeator Smith 1862, Xylonomus elizabethae Bingham 

 1898, Cyanoxorides erythrothorax Turner 1919, Xylonomus fracticornis 

 Smith 1860, Xylonomus fulgidipennis Smith 1857, Cyanoxorides rujo- 

 maculatus Cameron 1905, and Cyanoxorides vitalisi Turner 1919. All 

 of these are new combinations with the generic name, and except for 

 chalybeator also with the subgeneric name. Epirhyssa annulicornis 

 Cameron 1899, and Xylonomus blanditor Tosquinet 1903, are synonyms 

 of elizabethae (new synonymies). These synonyms, however, may 

 prove to be usable for distinguishable subspecies. 



4. Subgenus Gonioprymnus, new status 



Gonioprymnus Cameron, 1906, Ann. South African Mus., vol. 5, p. 126. Type: 



Gonioprymnus maculiceps Cameron; monobasic. 

 Lavaudenia Seyrig, 1932, Mem. Acad. Malgache, fasc. 11, p. 92. Type: Lav- 



audenia mirabiiis Seyrig; original designation. 

 Gymnacanthus Benoit, 1952, Bull. Ann. Soc. Ent. Belgique, vol. 88, p. 132. New 



synonymy. Type: Gymnacanthus aciculatus Benoit; original designation. 



This is an African subgenus. We have studied the types of the 

 three genotypes listed above, which are to be transferred to Xorides, 

 subgenus Gonioprymnus. Benoit (1952, Bull. Ann. Soc. Ent. Belgique, 

 vol. 88, pp. 129-136) treats some additional species under the generic 

 names Gonioprymnus and Gymnacanthus. 



5. Subgenus Moansa, new status 



Moansa Tosquinet, 1896, Mem. Soc. Ent. Belgique, vol. 5, p. 345. Type: Moansa 

 praeslans Tosquinet; monobasic. 



This is an African subgenus. We have seen the genotype, and 

 Dr. P. L. G. Benoit has showed us several peculiar African species in 

 the Tervuren Museum, which are related to Moansa. Judging from 

 the species we have seen, the Moansa-Goniopnjmnus section of the 

 genus Xorides is restricted to Africa, and there it has developed a 

 complex of peculiar species. They should probably either be in one 

 subgenus, characterized mainly by the absence of the prepectal carina, 

 or possibly be divided into several subgenera. Specimens of a larger 

 percent of the extant species will be needed to show the best arrange- 

 ment. For the present, we recognize the subgenera Moansa and 

 Gonioprymnus as distinct. 



6. Subgenus Moerophora, new status 



Moerophora Foerster, 1868, Verh. Naturh. Ver. Rheinlande, vol. 25, p. 169. 

 Type: Xylonomus rufipes Gravenhorst; included by Wolstedt, 1881. 



Macrosterotrichus Kokujev, 1903, Rev. Russe Ent., vol. 3, p. 287. Type: Xylono- 

 mus (Macrosterotrichus) jakolevi Kokujev; monobasic. 



This is a Palaearctic subgenus. The species that should be referred 

 to it, of which we have seen the types, are: Xorides immaculatus 



