Ttco new Species of the Genus Xaiitliospilopteryx. 291 



orifice, which is situated on or close to the posterior edge of 

 ventral surface. Anyone desiring to intelligently coinprc- 

 liend the external anatomy of Melop/imjus and Lipoptena will 

 do well to study carefully the excellent plate of Melopha(ju3 

 ovimts given by Dr. Cooper Curtice, in his work on the 

 ' Animal Parasites of Sheep ' (Bureau Animal Industry, U.S. 

 Department of Agriculture, 18'J0, plate 4). 



The male hypoj)ygium in the present species can be clearly 

 made out in a dry mount of the abdomen by the use of a 

 high-power objective. The male organ itself is moderately 

 stout and blunt at tip, rather than pointed as in Dr. Curtice's 

 figures of M. ovinus. 



Note. — Professor J. II. Comstock, in his new * Manual for 

 the Study of Insects,' p. 4^8, states that " the species of the 

 genus Lipoptera {sic) are winged at first and live on birds ; 

 later they migrate to quadrupeds, where they remain, and 

 liaving no further use for their w-ings, they lose them.'' I 

 know not what authority Professor Comstock has for this 

 statement, but I should I'eel that it was open to question. At 

 all events it cannot be made as a general statement for the 

 genus, for it is clear, from the preceding notes, that tlie pre- 

 sent species breeds, certainly at times and ])resumably always, 

 on deer; and, judging from the above specimens, which seem 

 to show unmistakably their recent escape from the puparium, 

 it is always wingless. 



N.B. — In his recent revised ' Synopsis of North-American 

 Diptera,' Dr. Williston has included 'I'ricohius^ in the table of 

 Hii)poboscida?, in the section with claws simple. It should 

 be pointed out that Tricholdus possesses bifid claws (see my 

 description in Ent. News, 1891, pp. 105-106). 



XXVII. — Two new Species of the Genus Xantliospilopteryx, 

 WaUengren. By W. J. HOLLAND, LL.D., F.E.S., &c. 



I HAVE recently received several examples of a fine species of 

 Xanthospilopteryx from Cameroons which does not appear to 

 be represented in European collections, and thus far has 

 certainly not been described. I take pleasure in naming it 

 after Mr. W. F. Kirby, the veteran student of entomological 

 literature, whose recent monographic revision of the genus is 

 of great value. While visiting the K.-k. Museum fiir 

 Naturkunde at Berlin the other day Professor Karsch kindly 

 ])ointed out to me a specimen of an allied species taken by 

 Dr. Pogge in Equatorial Africa. Availing myself of the 



