University of California

Species of Pimeliaphilus (Acari: Pterygosomidae) attacking insects, with particular reference to the species parasitizing Triatominae (Hemiptera: Reduviidae)


Irwin M. Newell
Raymond E. Ryckman

Authors Affiliations

Irwin M. Newell was Professor of Zoology, Department of Life Sciences, University of California, Riverside; Raymond E. Ryckman was Associate Professor of Microbiology, Department of Microbiology, School of Medicine, and Department of Biology, Graduate School, Loma Linda University, Loma Linda, California; Research Associate in Entomology, Los Angeles County Museum, Los Angeles, California.

Publication Information

Hilgardia 37(12):403-436. DOI:10.3733/hilg.v37n12p403. May 1966.

PDF of full article, Cite this article


Seven species of mites of the genus Pimeliaphilus from the United States and Mexico are described as new: P. gloriosus, P. sanguisugae, P. plumifer, P. calimesae, P. peninsularis, P. andersoni, and P. joshuae. The host of P. joshuae is unknown, but all the other new species parasitize kissing bugs (Reduviidae: Triatominae) found in rodent nests, human habitations, or poultry shelters. In addition to the seven new species described here, P. triatomae is reviewed by using specimens sent from South America; P. cunliffei, by a careful analysis of the data in two earlier papers; and P. podapolipophagus, by study of a “cotype” loaned to the authors. The ten species above are compared in a detailed tabular key which sets forth the principal morphological characters of value in differentiating between species. Biological notes are given for P. gloriosus, which can be a serious threat to laboratory colonies of bugs of the Triatoma “Protracta Complex.

Literature Cited

Barber H. G. A new genus and species of the subfamily Triatominae. Proc. Ent. Soc. Wash. 1938. 40:104-5.

Beer R. E. A new species of Pimeliaphilus (Acarina: Pterygosomidae) parasitic on scorpions, with a discussion of its postembryonic development. Jour. Parasit. 1960. 46:433-40. DOI: 10.2307/3275133 [CrossRef]

Berlese A. Centuria quinta di acari nuovi. Redia. 1920. 14:143-95.

Burmeister H. Handbuch der Entomologie. 1835. 2:245-46.

Cunliffe F. Pimeliaphilus isometri, a new scorpion parasite from Manila, P.I. Proc. Ent. Soc. Wash. 1949. 51:123-24.

Cunliffe F. Biology of the cockroach parasite, Pimeliaphilus podapolipophagus Trägårdh, with a discussion of the genera Pimeliaphilus and Hirstiella. Proc. Ent. Soc. Wash. 1952. 54:153-69.

Jack K. M. A re-examination of the genera Pimeliaphilus Trägårdh 1905 and Hirstiella Berlese 1920 (Acari: Prostigmata). Ann. and Mag. Nat. Hist. (ser. 13). 1961. 4:305-14.

Le Conte J. Remarks on two species of American Cimex. Proc. Acad. Nat. Sci. (Philadelphia). 1855. 7:404

Lewis J. E., Wagner E. D. Hepatozoon sauromali sp. n., a hemogregarine from the chuckwalla (Sauromalus spp.), with notes on the life history. Jour. Parasit. 1964. 50:11-14. DOI: 10.2307/3276019 [CrossRef]

Neiva A. Contribuição ao estudo dos hematófagos brasileiros e descrição de uma nova espécie de Triatoma. Brasil Médico, Rio de Janeiro. 1911. 25:461-62.

Newell I. M. Studies on the Johnstonianidae. Pac. Sci. 1957. 11:396-466.

Newell I. M., Ryckman R. E. Hirstiella pyriformis sp. n. (Acari: Pterygosomidae), a new parasite of lizards from Baja California. Jour. Parasit. 1964. 50:163-71. DOI: 10.2307/3276056 [CrossRef]

Ryckman R. E. Biosystematics and hosts of the Triatoma Protracta Complex in North America. Univ. Calif. Publ. Ent. 1962. 27:93-240.

Ryckman R. E., Ueshima N. Hesperocimex cochimiensis new species, from Baja California, Mexico. Proc. Ent. Soc. Wash. 1963. 65:247-49.

Sjogren R. D., Ryckman R. E. Epizootiology of Trypanosoma cruzi in southwestern North America. Part VIII: Nocturnal flights of Triatoma protracta (Uhler) as indicated by collections at black light traps. (Hemiptera: Reduviidae: Triatominae). Jour. Med. Ent. 1966. 3(1):

Stål C. Monographie der Gattung Conorhinus und Verwandten. Berl. Ent. Zeit. 1859. 3:99-117.

Stål C. Hemiptera Fabriciana (I). Kongl. Svenska Vet.-Akad. Handl. 1868. 7(11):124

Trägårdh I. Acariden aus Ägypten und dem Sudan. Res. Swedish Zool. Exped. Egypt and White Nile. L. A. Jägerskiöld. 1905. p.124. 6 plates.

Uhler P. R. Observations upon the heteropterous Hemiptera of Lower California, with descriptions of new species. Proc. Calif. Acad. Sci. 1894. 4:223-95.

Undiano C., Shictong G. Pimeliaphilus triatomae Identificación por primera vez en Córdoba de un ácaro ectoparásito de los Triatomídeos. Rev. Fac. Cienc. Méd., Córdoba. 1963. 21:223-27.

Usinger R. L. Descriptions of new Triatominae, with a key to the genera. Univ. Calif. Publ. Ent. 1939. 7:33-56.

Usinger R. L. A new Triatoma from Lower California. Pan-Pac. Ent. 1940. 16:73-74.

Usinger R. L. A brachypterous Reduvius from Lower California (Heteroptera: Reduviidae). Ent. News. 1942. 53:198-200.

Newell I, Ryckman R. 1966. Species of Pimeliaphilus (Acari: Pterygosomidae) attacking insects, with particular reference to the species parasitizing Triatominae (Hemiptera: Reduviidae). Hilgardia 37(12):403-436. DOI:10.3733/hilg.v37n12p403
Webmaster Email: sjosterman@ucanr.edu