PROC. ENT. SOC. WASH., VOL. 65, NO. 2, JUNE, L963 163 Wagner, H. 1908. Die sudafrikanischen Apioniden des British Museum, vorzugs-wiese von Herrn G.-A.-K. Marshall in Mashonalande und in Natal gesammelt. Mem. Soe. Ent. Belgique, 16; 1-62. ■ . 1909. Zur synonymie der Gattung Apion Ebst. (Col.). Deutsche Ent. Zeitschr., 1909, pp. 766-767. . 1911. Beitrag zur Kenntnis der Apion-Faxma Central-und Sud-Amerikas. Beschreibungen neuer Arten, nebst synonymischen Bemerkungen. I. Teil. Mem. Soe. Ent. Belgique, 19: 1-32. A NEW SPECIES OF HYADESIA (Acakina : Carpoglyphidae) 1). C. M. Manson, Depart nit hI of Agriculture, Levin, New Zealand Mites of the genus Hyadesia are unusual in that they normally feed on algae in salt or fresh water. Recently, specimens were received from Dr. P. Glynn of the Hopkins Marine Station, Pacific Grove, Cali-fornia, U.S.A. and they are described here as a new species. Dr. Glynn states that the habitat niche of this mite is within the inter-stices of the intertidal barnacle, Balanus glandula, which is covered by sea water about fifty per cent of the time. The genus and first known species of Hyadesia, II. uncinifer, was described by Megnin (1889), from immature forms found at Tierra del Fuego. Michael (1803), described a second species which he called Lentungula algivorans, and placed in the family Tyroglyphidae. Lentungula was later synonymised with Hyadesia. Lohmann (1894), described H. fusoa, a species which was found at Heligoland in the North Sea and in 1907 described H. kerguelensis from the Kerguelen Islands. Halbert (1915) erected the family Hyadesidae for species of the genus Hyadesia ( = Lentungulidae, Berlese 1897). Andre (1931) described //. ehelopus from the Indian Ocean. Viets (1936) described the species II. curassaviensis from the Antillan Islands and in 1937 described //. sellai from the Adriatic sea. Womersley (1961) described H. vietsi from Netherlands New Guinea. Zachvatkin (1940) included the genus II yadt sin under the sub-family Carpoglyphinae of the family Glycyphagidae. One of Zach-vatkin's characters for the genus was the presence of a transverse suture which separates the propodosoma and hysterosoma. But, ac-cording to Michael (1901) and Hughes (1955), //. uncinifer, the type species does not possess a transverse suture. Reviews of the family are given by Andre (1931) and Hughes (1955). Womersley includes a key to all previously described species. Hughes agrees with Zach-vatkin's classification. Baker and Cunliffe (1960) proposed the rais-ing of the subfamily Carpoglyphinae to family rank, Carpoglyphidae, and this classification is followed here. Hyadesia glynni n. sp. The distinctive feature of this species is the large dorsal shield which covers I he greater part of the hysterosoma and extends over the posterior portion of the
BioStor
