Pseudosphegestes brunnescens, a very rare species occurring in the Caucasus (South Russia, Georgia and North-East Turkey), has been described by Maurice Pic as Clytus (Sphegestes) brunnescens from Tiflis (Tbilisi, Georgia) in 1897 [❖]. Larval development in dying or freshly dead branches of deciduos trees (Ulmus, Fagus, Quercus). Adults, active from May to August, are diurnal and anthophilous.

Body length:	7 - 14 mm
Life cycle:	2 years [?]
Adults in:	May - August
Host plant:	polyphagous in deciduous trees (Ulmus, Fagus, Quercus)
Distribution:	Caucasus

Depicted mounted beetle was reared from larva found in Dviri (დვირი) village environs (Borjomi district, Samtskhe–Javakheti region, Georgia) on May 14, 2017. The living specimens were reared from larvae found in a dead elm (Ulmus sp.) branch at the same locality in May 2025.

Collected by Petr Strejček and Petr Jelínek

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[❖]
Pic M.:
Description de Longicornes de la région Caucasique.
Le Naturaliste, Paris 2 (11): 262-263, 1897. [download ]

Holzschuh C.:
Zur Synonymie palaearktischer Cerambycidae I. (Col.).
Koleopterologische Rundschau, Wien 52: 101-104, 1975. [download ]