208 BRITISH TYROGLYFHID2E. 



HISTIOSTOMA IIOSTRO-SERRATUM,* Megriin. PL II and 

 PI. Ill, figs. 112. 



Tyroglyphus rostro-serratus, 1873. Megnin, Memoire anatomique 



et zoologique sur nn nouvel Acarien, 

 etc./ in ' J. Anat. Physiol.,' vol. ix, 

 pp. 369378, pis. x, xi, xii. 



1874. Megnin, " Memoire sur les 



Hypopus," ibid., vol. x, pp. 225 

 254, pi. ix. 



Phyllostoma pectineum, 1876. Kramer, " Beitrage zur Natur- 



geschiclite der Milben," in ' Arch. 

 Naturg./ 42 Jahrg., Hft. 1, p. 39. 

 (Generic name preoccupied by 

 Geoffroy and Cuvier in 1797, Chirop- 

 tera.) 



Histiostoma pectineum, 1876. Kramer, ibid., p. 105. 

 Acarus mammillaris, 1876. Canestrini and Fanzago, " Nuovi 

 Acari Italiani," in ' Atti Soc. Yeneto- 

 Trent,' vol. v, p. 140. 1877, " Intorno 

 agli Acari Italiani," in ' Atti 1st. Yeneto,' 

 ser. v, vol. iv, p. 201. 



Rhizoglyphus rostro-serratus, 1877. Murray, ' Economic Entomo- 

 logy, Aptera,' London, p. 263. 

 Serrator amphibius, 1880. Megnin, ' Les Parasites et les Maladies 



parasitaires,' Paris, p. 145. 



? Histiostoma rostrO'Serratum, 1881. Berlese, " Indagini sulle Meta- 



morfosi di alcuni Acari insetticoli," 

 in ' Atti 1st. Yeneto,' ser. v, vol. viii, 

 p. 45. 1897, ' A. M. S. Crypt.,' pt. 1, 

 p. 102. 



? Hypopus julio rum, 1886. Berlese, ' A. M. S.,' fasc. xxix, No. 4. 

 Histiostoma feroniarum, 1888. 'Can. Pros.,' vol. iii, p. 375. 



1899. Kramer, ' Thierreich/ Lief. 7, p. 135. 

 Tyroglyphus feroniarum, 1893. Monier, 'Notes,' p. 453. 

 Ancetus feroniarum, 1898. Oudemans' ' List/ p. 252. 



Hypopial nymph. 



? Hypopus feroniarum, 1839. Dufour, " Description et figures de 

 quelques Parasites," in 'Ann. Sci. Nat./ 

 ser. 2, t. xi, p. 278, pi. viii, figs. 4 6. 



Hypopus Dugesii, 1868. Claparede, " Studien an Acariden," in 

 ' Z. wiss. Zool./ Bd. xviii, p. 506, pi. xxxvii, 

 fig. 6. 



This species is stated in error by Karpelles t to be 

 identical with Histiostoma fimetarium, Can. et Berl. 



It is very difficult to say whether Berlese's species is 

 the same as Megnin's. In his drawing of the species, 



* Rostrum, a snout ; serratus, toothed like a saw. 

 f ' Miscellan./ p. 16. 



