Lomechusoides kozlovi , Jászay, Tomáš & Hlaváč, Peter, 2013

Jászay, Tomáš & Hlaváč, Peter, 2013, A taxonomic revision of the myrmecophilous genus Lomechusoides Tottenham, 1939 (Coleoptera: Staphylinidae: Aleocharinae) Part I. Redescription of the genus, definition of species groups and th, Zootaxa 3683 (1), pp. 65-81: 77-81

publication ID


publication LSID


persistent identifier


treatment provided by


scientific name

Lomechusoides kozlovi

sp. n.

Lomechusoides kozlovi  sp. n.

( Figs. 42 –47View FIGURES 42 – 47. L, 52View FIGURES 51 – 52. 51, L)

Etymology. The species is named after Russian explorer of Mongolia and Tibet, Pjotr Kuzmič Kozlov (1863– 1935), the collector of the species.

Type material. HOLOTYPE, 13: in Russian characters: (p) „р. Сэрг-чю 13800 ´б. Желтой, Тибетъ Козловъ кон. v 01 ” [river Serg-čju, 13 800 feet (= 4 140 m), right confluent of Yellow river (= Chuang-che)], Tibet, Kozlov, V.01] / (h) Lomechusa  prope amurensis  (? sp.n?) W. Schilow, 981 / red label (p) Holotype Lomechusoides kozlovi  sp. nov. T. Jászay & P. Hlaváč des. 2012. ZINAbout ZIN.

Description. Body lighter reddish-brown ( Fig. 52View FIGURES 51 – 52. 51, L), head, pronotum and wide basal margin of tergites darker.

Head quadrate, only slightly longer than wide (HW/HL= 0.94), with deep median, densely microsculptured frontal triangular depression, anterior part dull, length of eyes 0.32 that of head; temples slightly convergent, postoccipital process large ( Fig. 42View FIGURES 42 – 47. L). Antennae ( Fig. 43View FIGURES 42 – 47. L) shorter, scape 1.63 times as long as wide and 2.21 times as long as pedicel, all antennomeres elongate except transverse pedicel, antennomere III 1.45 and IV 1.40 as long as wide; antennomeres V–X elongate, oval, terminal antennomere thin and acute, about as long as scape, relative length of antennomeres from base to apex: 20: 10: 11: 13: 14: 14: 14: 14: 14: 14: 21.

Pronotum ( Fig. 44View FIGURES 42 – 47. L) bicoloured, pronotal disc clearly darker, with clearly straight anterior margin, sides straight, extended posteriorly, with lateral deep depressions, surface of these depressions with microsculpture, disc dull, with dense, uneven puncturation, basal median lobe broadly rounded, pronotum in hind corners narrower than humeral width of elytra; ratio: PW/PL = 1.36. Metaventrite with metaventral process with anterior corners rectangular, anterior margin straight, lateral margins subparallel ( Fig. 45View FIGURES 42 – 47. L), metaventral process in anterior part with weakly defined lens-like depression but lacking rounded groove, whole surface of metaventrite unevenly punctured and setaceous, setae reaching margin of next puncture, metaventral disc with dense microsculpture.

Elytra densely punctured, distance between punctures less than puncture diameter, 1.20 times shorter than pronotum measured along median line, ratio: EW/EL= 1.78.

Abdomen with tergite II densely punctured and setaceous, distance between punctures on posterior margin less than puncture diameter, tergites III–IV on posterior margin with fine, sparse puncturation and setation, tergites V– VII sparsely but roughly punctured at base, densely punctured on lateral parts, tergites II–VIII with uneven microsculpture, only tergites V–VI with microsculpture on lateral sides, tergite and sternite VIII as in Fig. 46View FIGURES 42 – 47. L a, 46 b.

Aedeagus unknown. Spermatheca as in Fig. 47View FIGURES 42 – 47. L, basal part U-shaped, apical part slightly shorter and about as wide as basal part, about three times as long as wide, internal wall in apical part sparsely wrinkled.

Measurements. (Holotype), body length 4.70 mm; forebody length 2.45 mm; head length 0.79 mm; head width 0.75 mm; antennal length 2.40 mm; pronotal length 1.10 mm; pronotal width 1.50 mm; elytral length 0.95 mm; elytral width 1.70 mm; foretibial length 0.95 mm; midtibial length 1.15 mm; hindtibial length 1.40 mm

Diferencial diagnosis. L. kozlovi  differs from other species of the amurensis  group by its deep median triangular depresssion on head, metavenral process rectangular, elytra densely and coarsely punctured and by the characteristic shape of spermatheca.

Host ant. Unknown

Distribution. China (Tibet)


Russian Academy of Sciences, Zoological Institute, Zoological Museum