Abstract
As yet little is known of the bionomics of weevils of the genus Cleopomiarus Pierce, 1919; current knowledge is limited to data on the morphology and biology of the preimaginal stages of certain species. This paper includes original information on the life cycle of Cleopomiarusmicros (Germar, 1821). It presents the morphology of the egg, last larva (L3) and pupa. Data on the host plant (Jasionemontana L.) and breeding plant (Campanulapatula L.) and on the oviposition and phenology of the species are updated. The anatomy of the third-stage larva of C.micros shares certain traits with other species of the tribe Mecinini Gistel, 1848. Comparison of the morphology of preimaginal stages of C.micros with those previously described for other species of the genera Cleopomiarus and Miarus Schönherr, 1826 – previously considered the same genus – reveals species differences in larval body length, colour of the body and epicranium, and chaetotaxy of head and body.
Highlights
The tribe Mecinini Gistel, 1848 is currently represented by six genera worldwide, of which five (Cleopomiarus Pierce, 1919, Gymnetron Schoenherr, 1825, Mecinus Germar, 1821, Miarus Schoenherr, 1826 and Rhinusa Stephens, 1829) are known from the Palearctic fauna and one, Rhinumiarus Caldara, 2001, was discovered in the Neotropical realm (Caldara 2001, 2013, Caldara et al 2014)
Previous data on the morphology of the preimaginal stages of representatives of the genus Cleopomiarus concern only C. graminis, C. hispidulus, and Miarus campanulae, which in the old taxonomic system belonged to the genus Miarus (Emden 1938, Scherf 1964, Anderson 1973, Caldara and Legalov 2016)
The morphology of the L3 larvae and pupa of C. micros does not differ from the typical characters of preimaginal stages of weevils of the tribe Mecinini (Emden 1938, Scherf 1964, Anderson 1973, Marvaldi 2003, 2005, Marvaldi and Lanteri 2005, Gosik 2010, Jiang and Zhang 2015)
Summary
The tribe Mecinini Gistel, 1848 is currently represented by six genera worldwide, of which five (Cleopomiarus Pierce, 1919, Gymnetron Schoenherr, 1825, Mecinus Germar, 1821, Miarus Schoenherr, 1826 and Rhinusa Stephens, 1829) are known from the Palearctic fauna and one, Rhinumiarus Caldara, 2001, was discovered in the Neotropical realm (Caldara 2001, 2013, Caldara et al 2014). In the case of C. plantarum, the data come from the late 19th and early 20th centuries and require confirmation (Smreczyński 1976, Burakowski et al 1997, Petryszak 2004, Wanat and Mokrzycki 2005)
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