Lasiodactylus Perty

Cline, Andrew R. & Carlton, Christopher E., 2004, Review of Lasiodactylus Perty, with Descriptions of Three New Species (Coleoptera: Nitidulidae: Nitidulinae), The Coleopterists Bulletin 58 (3), pp. 355-368 : 357

Lasiodactylus Perty

Lasiodactylus Perty 1830 . Type species L. brunneus Perty , by monotypy

Lordites Erichson 1843: 316 . Type species L. procerus Erichson (¼ Lasiodactylus brunneus , syn. by Murray 1867)

Nitidulingen Gillogly 1965: 3 . Type species N. meridionalis Gillogly 1965: 3 , by monotypy (¼ Lasiodactylus brunneus , syn. by Kirejtshuk 1996)

Lasiodactylus , as first described by Perty (1830), was based primarily on elytral punctation and the bilobed condition of the labrum. Erichson (1843), in his description of Lordites procerus (¼ L. brunneus Perty ), was somewhat more detailed, taking into account the spinose condition of the tibia, the simple mesosternum, as well as several features of the head. Gillogly’s (1965) description of Nitidulingen meridionalis (¼ L. brunneus Perty ) was thorough and illustrations of the dorsal and ventral habitus were provided.

Diagnosis. Characters defining the genus include: robust oblong body, sulcate anterior margin of mentum ( Fig. 1 ), labrum bilobed, well-developed triangular supraocular region between vertex and orbit ( Fig. 2 ), antennal grooves deep and convergent, elytral and pronotal margins finely ciliate, elytra serially punctate with intervening double or triple rows of punctures between raised single rows of punctures, tibiae with large apical spines, protibia crenulate along lateral margin, pro- and mesosternum somewhat depressed, caudal marginal lines curved medially from metacoxal cavities, and tarsomeres 1–3 bilobed.

Figures

Figs. 1–2. Diagnostic external characters of Lasiodactylus. 1) Lasiodactylus kelleri, mentum;