NanosellaW. Eugene Hall
- Nanosella fungi
- Nanosella atrocephalus
- Nanosella matthewsi
- Nanosella panamensis
- Nanosella robustus
Nanosella is widely distributed in nearctic and neotropical areas. It is commonly associated with polypore fungi, and in the United States is abundant in the eastern and southern regions. This genus is represented by the smallest beetles known, some records listing species of Nanosella as small as .25 or .26 mm. in total length.
An outline on the confusion surrounding the species of Nanosella is discussed in Barber (1924: 168). The nanoselline genus Mycophagous may be a synonym of Nanosella. A revision of both genera is currently being conducted.
Nanosella can be separated from other nanosellines (Dybas, 1990) by the 'arrowhead' shaped mesosternal process pointing posteriorly; 10-segmented antennae; elongate-oval form; mesocoxal suture directed anteriorly; prothorax widest at basal angles; pygidial spine of varying shape (acute, bifid).
Dybas (1976) described the larva from a series of specimens collected at Cerro Punta, Chiriqui Province, Panama. As with many other genera of Nanosellinae, larvae and adults can be found inhabiting the same host fungus.
Nanosella occurs in North, Central and South America. Unpublished records extend the distribution of Nanosella beyond these regions.
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. Dindail, 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. Nanosella. Version 01 January 1997 (under construction). http://tolweb.org/Nanosella/9652/1997.01.01 in The Tree of Life Web Project, http://tolweb.org/