Derovatellus
Sharp, 1882
Species Guides
1Derovatellus is a of diving beetles ( Dytiscidae, Hydroporinae) established by Sharp in 1882. The genus comprises approximately 40 described distributed across Africa, the Americas, and parts of Asia. Most species have been described from tropical and subtropical regions, with notable diversity in sub-Saharan Africa.
Pronunciation
How to pronounce Derovatellus: //dɛɹoʊvəˈtɛləs//
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Identification
Derovatellus are distinguished from other vatelline by characteristics of the male genitalia, particularly the shape and structure of the . The genus is placed in tribe Vatellini based on shared derived features with related genera including Allodessus and Vatellus. Species-level identification requires examination of genitalic structures and often subtle differences in body proportions and coloration patterns.
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Distribution
of Derovatellus occur in sub-Saharan Africa (with the highest diversity), the Americas (North, Central, and South America including Colombia), and parts of Asia. The has been recorded from Colombia in the departments of Arauca and Cundinamarca.
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Species diversity
The includes approximately 40 described , with many described by Biström in the 1970s–2000s based on African material. Notable species include D. floridanus from North America and D. roosevelti and D. spangleri, both described by K.B. Miller in 2005.
Taxonomic history
The was established by Sharp in 1882 and has been subject to extensive revisionary work, particularly by Biström (1979–2003) who described numerous African . The fossil species D. rostrata was described from Baltic amber (Koch & Berendt, 1854).