Lechius longiclavis, Iwan, Dariusz & Kamiński, Marcin Jan, 2012

Iwan, Dariusz & Kamiński, Marcin Jan, 2012, Revision of the Malagasy genus Lechius Iwan, 1995 (Coleoptera: Tenebrionidae: Pedinini), Zootaxa 3399, pp. 23-34 : 27-28

publication ID	https://doi.org/ 10.5281/zenodo.281839
DOI	https://doi.org/10.5281/zenodo.6170863
persistent identifier	https://treatment.plazi.org/id/03851206-FFC1-9353-FF60-FB676D51CC1A
treatment provided by	Plazi
scientific name	Lechius longiclavis
status	sp. nov.

Treatment

Lechius longiclavis sp. nov.

(Figs 2, 6, 7, 9, 13, 17, 21, 28, 34)

Type data. Holotype, male ( MIIZ): “ Madagascar Sud, Ankazomateila 28.1.1995, Route Betioky-Beheloka”, “ 200m, savanne, sous pierres et troncs morts, J. Janák leg.”, “Coll H.J. Bremer”. Paratypes: 4 males and 9 females the same data as holotype. 4 males and 4 females ( MNHN): “ Madagascar Sud plateau Mahafaly 11/ 12 km Ouest d`Ankalirano 250m 14/ 17-I-1974 P.Viette et A. Peyrieras”, “Museum Paris”. Male and 2 females ( MNHN): “ V.1948. Vohitsara Betioky S. Tuléar MADAGASCAR ”, “Museum Paris coll. P. Ardoin 1978”. Male and female ( MNHN): “ Madagascar SW Lac Ihotry 27.V.1965 L. Bigot leg.”. 3 females ( MNHN): “Vohibory (Elbadie)”, “Institut Scientifique Madagascar ”. 2 males and female ( MNHN): “ Madagascar Sud Tuléar, -57 Gruvel“, “Institut Scientifique Madagascar ”. 2 females ( MNHN): “Madag S.-E. Vondrozo 1921”, “Muséum Paris 1952 Coll. R. Oberthur”. Male ( MNHN): “Sakaraha Zombitsy P. Griveaud”, “Institut Scientifique Madagascar ”. Female ( TMNH): “ Madagascar I.1956 C. Koch leg.”, “Tulear SW Madagascar ”. Female ( TMNH): “ Madagascar I.1956 C. Koch leg.”, “Ambilalialika Betioky Distr.”. Male ( TMNH): “ Madagascar I.1956 C. Koch leg.”, “Efoetsy Betioky Distr.”. Female ( TMNH): “ Madagascar I.1956 C. Koch leg.”, “Lambomakandro Tulear Distr.”. Female ( MIIZ): “Ampanihy”; female ( MNHN) “ 15 m S.E. of Tulear at Anitahy Riv. Madagascar VI-9-35 ”; “Van Dyke Collection”. Male ( MIIZ): “ Madagascar Midongy”, “ Selinus abacoides Fairmaire det. dr. Kaszab”.

Locus typicus. Southern Madagascar (Ankazomateila).

Etymology. The name refers to the specific structure of male genitalia of this species (“having long clavae”).

Diagnosis. This species is similar to L. abacoides by the structure of pronotum (lateral margination disappearing at the middle; barely visible punctures of disc). L. longiclavis sp. nov. differs from L. abacoides by the structure of male genitalia (elongated clave). There are no clear external morphological differences between these two species, however in L. abacoides lateral margination of pronotum completely disappears at the middle. Also, unlike in L. longiclavis sp. nov., the punctation on the pronotal disc of L. abacoides is almost invisible ( Figs 8, 9 View FIGURES 8 – 16 ).

Description. Measurements. Body—length = 12.0 – 14.0 mm; width ratio elytra/pronotum = 1.0 – 1.1; length ratio elytra/pronotum (pl) = 2.3 – 2.4. Clypeus—clypeal emargination width/depth ratio ca. 5.0. Antennae—length ratio antenna/pronotum (apl) ca. 0.9; ratio length of antenna/width of 3rd antennomere ca. 6.3; length ratio of antennomere 3rd/2nd ca. 3.0. Maxillary palp—ratio width of maxillary palp/length of 3rd antennomere ca. 1.0. Pronotum—pronotum length (pl)/width ratio = 0.6 – 0.7; length ratio pronotum (pl)/anterior pronotal angles (apl) ca. 0.9. Elytra—elytra length/width ratio = 1.3 – 1.4. Scutellum—width ratio anterior margin of elytra/scutellum at base = 3.3 – 3.6. Metaventrite—length ratio cavity of hind coxa/metaventrite between the insertions of mid and hind coxae ca. 2.4. Abdomen—width ratio process of I abdominal ventrite/process of metaventrite ca. 2.0. Legs—Protibia of both sexes length/width ratio ca. 5.8; both sexes profemur length/width ratio = 4.0 – 4.1. Tarsi—length ratio metatarsomere 1st/2nd ca. 3.0.

Habitus as in Fig. 21 View FIGURES 20 – 24 .

Punctures on head sparse (4 – 5 diameters apart) with short setae. Anterior margin of clypeus with shallow median emargination. Mentum slightly narrowing towards apex; submentum with elongated base (Fig. 34).

Pronotal disc dull with scarcely visible punctures (5 – 6 diameters apart) ( Fig. 9 View FIGURES 8 – 16 ). Lateral border of pronotum vanishing medially ( Fig. 9 View FIGURES 8 – 16 ). Hypomeron with longitudinal depression near the lateral border (as in L. steineri , Fig. 12 View FIGURES 8 – 16 ).

Elytral rows with scarcely visible punctures; most noticeable at the elytral base. Interrows dull with scarcely visible punctures (5 – 6 diameters apart). Elytral base sinusoidal. Elytral humeri rounded ( Fig. 13 View FIGURES 8 – 16 ). Scutellum triangular.

Intercoxal process of prosternum straight with complete bordering ( Fig. 17 View FIGURES 17 – 19 ). 5th abdominal ventrite bordered; with punctures 3 – 5 diameters apart (Fig. 2).

Male protarsi widened. Male protibia as in Fig. 6, 7. Meso- and metatibia of both sexes simple.

Apical part of aedeagal tegmen equal to 0.25 of the rest of tegmen. Parameres narrowing towards apex. Clavae elongated (as in L. madagascariensis )

Ovipositor as in Fig. 28. Paraproct longer then coxites. First two sclerites wide and short; remaining sclerites narrow and long. Spermatheca as in L. abacoides (see Fig. 29).

Comments. Following sampling periods (a), habitat descriptions (b) and altitudes (c) were recorded from specimen labels: (a) 9 VI 1935, V 1948, I 1956, 27 V 1965, 14 – 17 I 1974, 28 I 1995; (b) Savanna (under stones and fallen trunks); (c) 200m, 250m.

Distribution. Central and Southern Madagascar ( Fig. 19 View FIGURES 17 – 19 ).