Cylindrosella dampfiW. Eugene Hall
Cylindrosella currently contains one described (Barber, 1924) and two undescribed species found in North America. The type species, C. dampfi, was collected on a polypore fungus, Fomes pinicola, at 3200 meters in Mexico.
Ptiliid species generally possess varying spermathecal designs, but striking similarities exist between C. dampfi and an undescribed species occurring in southwestern United States.
Cylindrosella can be separated from other ptiliid genera by the elongated, moderately narrow form (Barber 1924, Dybas 1990). Body length can be up to five times as long as wide. The mesosternal process is directed posteriorly, and generally 'arrowhead-shaped.'
The larva illustrated by Barber (1924: plate 7) as possibly representing Cylindrosella more than likely belongs to the Staphylinidae (Dybas, 1976:50). Ptiliid larvae lack eyespots (exception Nossidium), and larvae of Nanosellinae do not posses urogomphi.
Cylindrosella dampfi is currently known only from the type locality in Mexico. Two undescribed species occur in the western (Arizona, New Mexico) and eastern (Illinois, Michigan, Indiana, Kentucky) regions of the United States, associated with the fungus Fomitopsis pinicola.
Barber, H.S. 1924. New Ptiliidae related to the smallest known beetle. Proc. Ent. Soc. Wash. 26(6):167-178.
Dybas, H.S. 1990. Ptiliidae. in Soil Biology Guide. Daniel L. Dindal, editor. Wiley-Interscience, New York.
Dybas, H.S. 1976. The larval characters of featherwing and limulodid beetles and their family relationships in the Staphylinoidea (Coleoptera: Ptiliidae and Limulodidae). Fieldiana. Zoology 70(3):29-78.
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Hall, W. Eugene. 1997. Cylindrosella. Cylindrosella dampfi. Version 01 January 1997 (under construction). http://tolweb.org/Cylindrosella_dampfi/9657/1997.01.01 in The Tree of Life Web Project, http://tolweb.org/