Leiodes babai Nakane 1989
Creators: name: Hoshina, Hideto
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Leiodidae
Leiodes
Leiodes babai

description: 1. Leiodes babai Nakane, 1989
Japanese name: Baba-ô-tamakinokomushi (Figs. 7–9, 110)
Leiodes babai Nakane, 1989: 147; PERREAU (2004): 194 (catalogue).
Type locality. Japan, Honshu, Niigata Pref., N. Echigo, Mt. Ooishi.
Type material examined. JAPAN: HONSHU: HOLOTYPE, ♂, Niigata Pref., N. Echigo, Mt. Ooishi, 20.vi.1972, K. Baba leg. (HUMS).
Additional material examined. JAPAN: HONSHU: 1 ♂ 1 ♀, Saitama Pref., Ohtaki Village, Nakatsukawa-keikoku, Oku-Chichibu-rindô (alt. 1300m), 30.vii.–7.viii.2004, K. Arai & S. Arai leg. (FIT) (FUFJ); 1 ♂, 1 ♀, Tokyo Pref., Hinohara Village, Mt. Mitôsan, (alt. 1100 m), 23–30.vii.2008, H. Takano leg. (FIT) (FUFJ).
Diagnosis. Coloration. Dorsum almost unicolor, brown; antennomeres 1–6 and 8 brown; antennomeres 7, 9, 10, and basal 3/5 of antennomere 11 dark brown; apical 2/5 of antennomere 11 light brown.
Body 2.6–3.0 mm long, ca. 1.7× as long as wide (Fig. 7A). Head densely and very minutely punctate, bearing some large punctures (Fig. 7A); antennomeres 1–4 longer than wide; remaining antennomeres each wider than long; antennomere 11 oval (Fig. 7C). Pronotum simply and very feebly curved at posterior margin and densely and very minutely punctate (Fig. 7A). Elytra not transversely strigose; each elytron bearing nine rows of punctures with small number of punctures and moderate number of very fine punctures between rows (Fig. 7D); row 9 invisible in dorsal view, subhumeral row as long as 1/4 of elytral length (Fig. 7B); elytral rows composed of minute but larger punctures than those of pronotum (Fig. 7A); sutural stria fine, arising from apex to ca. apical 3/5 of elytral length. Metathoracic wings fully developed. Mesoventrite with one distinct excavation between median carina and transverse carina (Fig. 7E); median carina of mesoventrite low (Fig. 7E); metaventrite without sexual dimorphism. Legs with weak sexual dimorphism on protarsi, mesotarsi, and metatibiae; protibiae gradually and very feebly widening from base towards apex (Figs. 8E, 8F); metafemur with a small dorsal projection posteroapically (Figs. 8G, 8H).
Male. Tarsomeres 2–4 of protarsi and mesotarsi feebly expanded (Fig. 8A); metatibiae feebly curved inwards (Fig. 8C); abdominal sternite feebly curved (Fig. 9C); aedeagus as shown in Figs. 9A, 9B.
Female. Protarsi and mesotarsi slender (Fig. 8B); metatibiae almost straight (Fig. 8D); abdominal sternite 8 with a spiculum ventrale at a central point of anterior margin (Fig. 9D); coxites and stylus as shown in Fig. 9E.
Differential diagnosis. Leiodes babai is similar to the Korean L. odaesanensis Park & Ahn, 2007 which it resembles in the morphology of the elytral punctures, but may be distinguished from it by having a relatively robust median lobe of the aedeagus (Fig. 9A).
Distribution. Japan: Honshu (Niigata, Saitama, and Tokyo Prefectures). Leiodes babai was described on the basis of a single specimen from Niigata Prefecture. In this study, additional specimens from other areas are recorded for the first time.
description: Published as part of Hoshina, Hideto, 2012, Review of the tribes Sogdini and Leiodini from Japan and North Chishima Islands. Part II. Genera Hydnobius and Leiodes (Coleoptera: Leiodidae), pp. 1-168 in Acta Entomologica Musei Nationalis Pragae (suppl. 1) (suppl. 1) 52 on pages 24-26, DOI: 10.5281/zenodo.4272467