A. C. OUDEMANS. ACARI. 139 



1S64. Acarus dimidiaîus, Kirchner in Lotos v. 14, p. 74. 



1867. Tyroglvphus longior, FUMOUZE, De la canth. offic. Thèse, p. 44, t. 2. 



1867. Tyroglvphus longior, FUM. et Rob. in Journ. Anat. Physiol. v. 4, p. 582, t. 25. 



1868. Tyroglvphus longior, FUM. et ROB. in Journ. Anat. Physiol. v. 5, p. (3). 

 1868. Tyroglvphus longior, Clap. in Zeit. wiss. Zool. v. 18, p. 491. 



1877. Tyroglvphus longior, MuRR. Econ. Ent. Apt. p. 270, fig. 



1879. Tyroglyphus longior, OUDMS. in Tijdschr. v. Ent. v. 23, p. XVII. 



1880. Acarus dimidiatus, Hall. Die Milben als Paras, d. Wirbell. p. 24. 

 1880. Acarus dimidiatus, Hall, in Ann. d. Oenol. p. (5). 



18S0. Tyroglyphus setiferus, Hall, in Zeit. wiss. Zool. v. 34, p. 294, t. 10, f. 2, 12, 13, 15, 19. 



1880. Tyroglyphus longior, MÉGN. Les Paras, et 1. Malad. paras, p. 143. 



1882. Tyroglyphus longior, WlLSON in Amer. Nat. v. 16, p. 599. 



1883. Tyroglyphus setiferus, Berl. in Bull. Soc. Ent. Ital. v. 15, p. 220. 



1883. Tyroglyphus longior, Karp. Beitr. Nat. Milb. Inaug. Diss. p. 19, 22. 



1884. Tyroglyphus infestons, BERL. Ac. Myr. Scorp. Ital. Fasc. 14, n°. 6. 



1884. Tyroglyphus infestans, Berl. Note relat. Ac. Myr. Scorp. Ital. Fasc. 1, p. 11. 

 1884. Tyroglyphus longior, Nalepa in Sitzber. k. Akad. Wiss. Wien. v. 90, I, p. 21 1, t. 1, 2. 



1887. Tyroglyphus longior, GROULT, Ac. Crust. Myr. p. 60. 

 iSSS. Tyroglyphus longior, Can. I Tiroglifidi p. 28. 



1888. Tyroglyphus longior, Can. Prosp. Acarof. Ital. v. 3, p. 405, t. 32, f. 1. 

 1S90. Tyroglyphus longior, MON. in Rev. Biol. Nord. Fr. v. 2, p. 27; v. 3, p. 32. 



1892. Tyroglyphus longior, MÉGN. Acar. paras, p. 104. 



1893. Tyroglyphus longior, KARP. in Math. Nat. Ber. Ung. v. 11, p. 127. 

 1S94. Tyroglyphus longior, Mon. in Rev. Biol. Nord. Fr. v. 6, p. 442. 

 1895. Tyroglyphus longior, TRT. Paras, habit, hum. p. 117. 



1897. Tyroglyphus longior, Berl. Ordo Cryptost. Sarc. p. 108. 



1898. Acarus horridus, OUDMS. in Tijdschr. v. Ent. v. 40, p. 250. 



1899. Tyroglyphus longior, Berl. Gli Acari agrarii, p. 75. 



1901. Tyroglyphus longior, MlCHAEL. Brit. Tyrogl. v. 1, p. 1 — 240. 



1903. Tyroglyphus longior, MlCHAEL, Brit. Tyrogl. v. 2, p. 123, t. 2,7 ', t. 39, f. 1 — 4. 



1904. Tyroglyphus longior, OUDMS. in Pharm. Weekbl. v. 41, n°. 13, p. 269. 

 HERMANN, 1804, describes the mite as folio ws: 



„ Abdomen sphérique, d'un vert jaunâtre par devant, blanc par derrière et en dessous; 

 à soies radiées, plus longues que le corps." — „Elle se trouve entre les mousses." — „Je 

 n'ai observé aucun palpe, mais des pinces intermédiaires, qui n'étoient cependant point arti- 

 culées comme dans d'autres mites." 



From this short description it is impossible to recognize any known mite. But fortun- 

 ately his drawings are exact enough to determinate Tyroglyphus longior GERVAIS. We observe 

 a mite belonging to the Tyroglyphidae with distinct démarcation of céphalothorax and abdomen, 

 with two vertical hairs, four longer hairs on the posterior half of the céphalothorax, and an 

 abdomen with 9 pairs of radiating hairs. He says they are longer than the body, but this 

 may be an optical illusion. The abdomen is globular which betrays a pregnant female. The 

 tarsi are long ; HERMANN delineates the tarsi as long as fémur, genu and tibia together. Now 



