fiV R. J. TtLLYARb. 759 



surely one of the best known and most typical species of the 

 family, as a new genus and species of Jlenierob'ddai^ under the 

 name ZygoiMebius rrrnaitxlniis Navas{ll). The description 

 clearly shows that, at the time, Navas was quite unaware that 

 there was such a genus as Fsychopsis, though it had been pro- 

 posed nearly seventy years before, and its type-species was one 

 of the most striking of all known Planipennia. Later in the 

 same year, N. Banks(l) pointed out that Zijijophldnus was clearly 

 synonymous with FsychopsU', whereupon, in his next publication, 

 Navas suppressed his generic name in favour of Fsychopsis. If 

 he had stopped there, all would have been well. But, in his 

 monograph (13), he proceeded to resurrect Guerin's old generic 

 name Arteriopteryx (given by that author in ignorance of New- 

 man's then quite recently published name, Psychopsis), the type 

 of which is eleymis Guerin, synonymous with vei-reauxinus Navas. 

 He then, quite illegally, further resurrects his generic name 

 Zygophlehius, of which the original type was verreauxinus Navas 

 ( = elegans Guerin), and proceeds to redefine it, and to give it a 

 new genotype, Psychopsis zebra Brauer, from South Africa. At 

 the same time, he forms the tribe Zyyophlebini to receive the 

 whole of the South African species, leaving eleyans Guerin, 

 together with all the other Australian species, in the tribe 

 Psychopsini ! 



Now Zyyophlebius was proposed by Navas as a monotypic 

 genus, and hence there can be no question as to which species 

 was its type. Hence, whether Navas was correct in placing that 

 species in Psychopsis, as he did in 191 2, or in Arteriopteryx, as 

 he did in 1916, is immaterial to the question. In either case, 

 Zyyo2)hlebius sinks as a synonym, either of Psychopsis Newman, 

 or of Arterio2)teryx Guerin. As a nomen niidain, it may not 

 again be resurrected in the form of a new genus, to receive, as 

 its type, another species of Psychopsis, viz., Ps. zebra Brauer. 

 Further, the tribal name Zygophlebhii must sink with it. If 

 Ps. zebra Brauer, is really generically distinct from Ps. niiniica 

 Newman, it now requires a new name. I therefore propose the 

 name Notopsychop>s, n.n., to replace Zygophlebias Navas, 1916, 



