Lathrobium ovchinnikovi, Anlaş & Online & Version, 2020

Anlaş, Sinan, Online, Published & Version, Final, 2020, On the genus Lathrobium Gravenhorst, 1802 of Kyrgyzstan: Two new species and new records (Coleoptera: Staphylinidae: Paederinae), Turkish Journal of Zoology 44 (5), pp. 455-461 : 457-459

publication ID	https://doi.org/ 10.3906/zoo-2004-32
persistent identifier	https://treatment.plazi.org/id/24024700-9E28-FFAF-3F21-9FCF0471FDD5
treatment provided by	Felipe
scientific name	Lathrobium ovchinnikovi
status	sp. nov.

Treatment

Lathrobium ovchinnikovi View in CoL sp. nov. ( Figures 1 View Figure 1 and 2a –2h View Figure 2 ; Table)

Type material – Holotype KYRGYZSTAN: ♂, Киргизия. Фер- | ганский хр. | Кара-Алма | 6. VI.97. Овчинников, коллекция А.А. Клименко.[Kyrgyzia (= Kyrgyzstan), Ferganskiy Mt. , Kara-Alma. 6.VI.1997. Ovchinnikov [leg.], Collection of A.A. Klimenko] . Holotypus ♂, Lathrobium ovchinnikovi sp. nov. det. S. Anlaş 2020” ( ZIN) .

Description Measurements and ratios: AL: 2.21; HL: 0.76; HW: 0.73; PL: 0.95; PW: 0.68; EL: 0.63; EW: 0.81; AW: 0.88; ML: 0.80; TL: 6.88; HL/HW: 1.04; PW/HW: 0.93; PW/PL: 0.72; EL/PL: 0.66; EW/PW: 1.19; EL/EW: 0.78; AW/EW: 1.09.

Habitus as in Figure 2a View Figure 2 . Body length: 6.9 mm. Coloration: forebody uniformly reddish brown, legs somewhat lighter than body, antennae reddish brown. Head weakly oblong ( Figures 2a and 2b View Figure 2 , HL/HW), widest behind eyes, approximately 1.05× as long as wide; puncturation distinct, coarse, sparser and larger in mediodorsal portion, denser and smaller in lateral area, and interstices without microsculpture; pubescence yellowish and very rare; eyes reduced, slightly protruding from lateral contours of head. Antennae very long, approximately 2.2 mm; antennomere 3 slightly longer than 2; 4–10 oblong; 10 approximately 2.1× as long as wide ( Figure 2a View Figure 2 ).

Pronotum distinctly longer than wide, approximately 0.72× as long as wide and slightly narrower than head, 0.93× as wide as head ( Figures 2a and 2b View Figure 2 ; PW/PL, and PW/ HW); puncturation similar to that of head, moderately denser and larger; interstices without microsculpture; pubescence yellowish and sparser than head.

Elytra shorter, approximately 0.80× as long as wide and broader than pronotum, 1.20× as wide as pronotum ( Figures 2a and 2b View Figure 2 ; EL/EW, and EW/PW); puncturation coarser than that of head and pronotum; interstices without distinct microsculpture; pubescence yellowish and sparse. Hind wings completely reduced.

Abdomen slightly wider than elytra ( Figure 2a View Figure 2 , AW/ EW), approximately 1.10× as wide as elytra, widest at segment VII; puncturation fine, well-defined and not very dense; surface with shallow microsculpture composed of transverse meshes; posterior margin of tergite VII without palisade fringe.

Male Sternite VII distinctly modified, with median impression and concave posterior margin, median impression bearing short, stout and black setae ( Figure 2c View Figure 2 ), posterior margin of sternite VIII convex, with small triangular incision on apical margin ( Figure 2d View Figure 2 ). Aedeagus length: 0.80 mm; ventral process curved and slender with wide basal part in lateral view ( Figures 2e and 2f View Figure 2 ); ventral process long and straight, symmetric in ventral view ( Figure 2g View Figure 2 ).

Female Unknown.

Etymology The species is dedicated to the Russian arachnologist Sergey V. Ovchinnikov (1958-2007), the collector of the holotype.

Differential diagnosis The new species can be distinguished from other congeners in Middle Asia by the different morphology of the male sexual characteristics. It is additionally separated as follows:

From L. lackneri by the smaller body (in L. lackneri : 10.4 mm), the different coloration of the body (in L. lackneri : body blackish, elytra dark reddish brown), smaller eyes, shorter elytra, less distinct puncturation of the body, and the completely different shape and chaetotaxy of the male sternite VII and VIII (in L. lackneri : sternite VII with weakly concave posterior margin and broad shallow median impression with stout black setae directed diagonally mediocaudad; sternite VIII with medioposterior margin shallowly concave). For illustrations of L. lackneri , see Assing (2007: figures 1–10).

From L. longulum by the different coloration of the body (in L. longulum : body uniformly black or blackish brown), less oblong head, shorter elytra, and by the different shape of the male sternite VIII (in L. longulum : posterior margin of sternite VIII distinctly convex). For illustrations of L. longulum , see Coiffait (1982: Figures 83e and 83f).

From the transPalaearctic L. brunnipes by the different coloration of the body (in L. brunnipes : head, pronotum and abdomen black or blackish brown), smaller body (in L. brunnipes : 8–9 mm), less oblong head, shorter elytra, relatively longer antennae and by the different shapes of the male sternite VII and VIII. For illustrations of L. brunnipes , see Coiffait (1982: Figures 81g and 81h).

From the trans-Palaearctic L. fulvipenne by the smaller body (in L. fulvipenne : 8–10 mm), the different coloration of the body ( L. fulvipenne : body black, with elytra dark reddish brown or reddish yellow),less oblong head, less distinct punctation of the body, shorter elytra, and by the completely different shape and chaetotaxy of the male sternite VII and VIII (in L. fulvipenne : sternite VII with weakly concave posterior margin and without modified black setae; sternite VIII with medioposterior marginrelatively large concave). For illustrations of L. fulvipenne , see Coiffait (1982: Figures 81a and 81b).

From L. marani (Middle Asia) by the different coloration of the body (in L. marani : body blackish, with elytra dark reddish brown), smaller body (in L. marani : 8–9 mm), less distinct puncturation of the body and by the different shape and chaetotaxy of the male sternite VIII. For illustrations of L. marani , see Koch (1939: Figure 11), Coiffait (1982: Figures 78i and 78j) and Anlaş (2013: Figure 14).

From L. semirufulum ( Kazakhstan, Tajikistan and Kyrgyzstan) by the different coloration of the body (in L. semirufulum : forebody reddish, abdomen dark brown with reddish apex), slightly larger body ( L. semirufulum : approximately 5–6 mm), less oblong head and by the different shape and chaetotaxy of the male sternite VIII. For illustrations of L. semirufulum , see Coiffait (1982:

Figures 83c and 83d, as Lobrathium sahlbergi (Fauvel, 1900) in the paper).

From L. elongatum by the different coloration of the body (in L. elongatum : forebody blackish, with posterior 2/3 of elytra reddish or reddish brown), smaller body ( L. elongatum : approximately 8–9 mm), and by the different shape of the male sternite VIII (in L. elongatum :posterior margin of sternite VIII with deep triangular incision). For illustrations of L. elongatum , see Coiffait (1982: Figures 77a and 77b), Ryvkin (2011: Figures 8 and 11) and Anlaş (2013: Figure 12).

From L. bucharense ( Uzbekistan) by the smaller body (in L. bucharense : 9 mm), the different coloration of the body (in L. bucharense : body blackish, with elytra reddish brown), and by the completely different shapes of the male sternite VII and VIII (in L. bucharense : posterior margin of sternite VII and VIII broad and not deeply concave; sternite VIII with medioposterior margin shallowly concave). For illustrations of L. bucharense , see Koch (1944: Figure 3 View Figure 3 ), Coiffait (1982: Figures 78k and 78l) and Assing (2013: Figures 1–3 View Figure 1 View Figure 2 View Figure 3 ).

From L. concolor ( Mongolia, Uzbekistan, Russian Far East,Eastern Siberia,) by the smaller body (in L. concolor : 8–9 mm), lighter coloration of the apical abdominal segments (in L. concolor : brown or dark brown), and by the different shape and chaetotaxy of the male sternite VIII (in L. concolor : posterior margin of sternite VIII with deeply concave and without modified setae). For illustrations of L. concolor see Coiffait (1982: Figures 80i and 80j) and Ryvkin (1989: Figure 1 View Figure 1 ).

From the trans-Palaearctic L. geminum by the smaller body (in L. geminum : 8–9 mm), the different coloration of the body (in L. geminum : body blackish, with bicoloured elytra), and by the sparser black setae in posterior margin of male sternite VIII. For illustrations of L. geminum see Koch (1939: Figure 9), Coiffait (1982: Figures 78c and 78d) and Ryvkin (2011: Figures 5–7).

From L. kuntzeni ( Iran and Uzbekistan) by the smaller body (in L. kuntzeni : 8–8.5 mm), the different coloration of the body (in L. kuntzeni : body blackish with reddish yellow elytra and reddish apex of abdomen), less oblong head, smaller eyes, and by the different shape and chaetotaxy of the male sternite VIII (in L. kuntzeni : posterior margin of sternite VIII with deeply concave). For illustrations of L. kuntzeni see Koch (1939: Figures 32–33) and Coiffait (1982: Figures 79i and 79j).

From L. vitalyi ( Kazakhstan) by the smaller size (in L. vitalyi : 7.5 mm) and by the different coloration of the body ( L. vitalyi head brown; pronotum and elytra reddish, abdomen blackish-brown with slightly paler apex). For illustrations of L. vitalyi see Assing (2008: Figures 55–59).

From L. kastcheevi ( Kazakhstan) by the smaller size (in L. kastcheevi : 8.7 mm), the different coloration (in L. kastcheevi : body blackish, elytra reddish, anterior third infuscate), and by the different shape and chaetotaxy of the male sternite VIII (in L. kastcheevi : sternite VIII with cluster of black modified setae in posterior median portion). For illustrations of L. kastcheevi see Assing (2009:

Figures 9–12).

From L. matalini ( Kazakhstan) by the different coloration of the body (in L. matalini : head reddish brown, pronotum reddish, elytra blackish but posterior margin of elytra dark brown, abdomen black), less oblong head, and by the different shape of the male sternite VIII (in L. matalini : medioposterior margin of sternite VIII with broadly v-shaped excision). For illustrations of L. matalini see Anlaş (2013: Figures 1 View Figure 1 –10).