Bembidion (Trichoplataphus) seijii Toledano 2009, sp. nov.
Creators: name: Toledano, Luca
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Carabidae
Bembidion
Bembidion seijii

description: Bembidion (Trichoplataphus) seijii sp. nov.   
(Figs. 9, 12, 24)  
 Type locality. Taiwan, Hsintienchi, Hsintien, Taipei Hsien.   
 Type material. HOLOTYPE: J, ‘ TAIWAN, 19 – xi – 2001 / Hsintienchi, Hsintien / Taipei Hsien / Terada – 69 // HOLOTYPUS / Bembidion seijii sp.n. / Det. L. Toledano, 2009 [red]’ (MSNV). PARATYPES: 4 ♀♀, same date and locality as the holotype (NTUC, KTHJ, CTVR); 4 JJ 2 ♀♀, ‘ TAIWAN, 3 – xii – 2001 / Hsintienchi, Hsintien / Taipei Hsien / Terada’ (KTHJ); 2 JJ 1 ♀, ‘ Hsintien / Taipei Hsien / Taiwan / 19-xi-2001 / K. Terada leg.’ (SMTJ, CTVR). All paratypes labelled as ‘ PARATYPUS / Bembidion seijii sp.n. / Det. L. Toledano, 2009 [red]’.   
 Diagnosis. A black Trichoplataphus with sides of pronotum evidently sinuate before the long and evidently square hind angles.   
 Description. Body length 4.96–5.40 mm. Black, metallic, with faint bluish reflections. Legs and antennae dark brown except for red antennomere 1 (Fig. 9).   
Head wide, with convex eyes, parallel and rather deep, slightly rugose frontal furrows not extending on clypeus. Antennae relatively long (bl/al = 1.80–1.84).  
Pronotum transverse (pw/pl = 1.40; ew/pw = 1.54–1.57). Sides rounded, evidently sinuate before the long and square hind angles, much more marked than in the other Taiwanese species of the subgenus (Fig. 12). Lateral channel narrow in anterior third, wider and flat in middle part, then narrowed again and narrowest in posterior third. Anterior transverse impression and median line distinct, posterior transverse impression deep, uneven. Basal foveae very small, placed at each end of posterior transverse impression, laterally delimited by flat punctate area. Posterior margin almost straight with sides slightly oblique.  
Elytra wide (el/ew = 1.53–1.54), with relatively parallel sides, square humeri and pointed apex. Elytral striae 1–7 complete, striate-punctate, scutellar and apical striae long, apical striae connected with stria 5. Two discal elytral pores in interval 3 adjoining stria 3. Beginning of stria 5 slightly less deep (stria 5 in the other Taiwanese species deeply impressed at base, much more than other striae).  
Microsculpture distinct as small, convex isodiametric cells on head, visible as superficial, very slightly transverse, flat cells on pronotum and practically absent on elytra.  
 Male genitalia (Fig. 24). Very similar to those of B. miwai and B. taiwanum, but median lobe of aedeagus with apical fourth of ventral margin evidently bent ventrally and apex more thickly reinforced ventrally. Apicoventral process of main sclerite triangular, less extended and more sclerotized than the same structure in B. jelineki sp. nov. (seen from the left).   
 Etymology. Dedicated to my dear friend and colleague Seiji Morita, accomplished specialist in Japanese Carabidae, who kindly helped me in this study.   
 Distribution. So far known only from the type locality.
description: Published as part of Toledano, Luca, 2009, Notes on the Bembidiina of Taiwan with description of three new species (Coleoptera: Carabidae), pp. 577-598 in Acta Entomologica Musei Nationalis Pragae 49 (2) on page 586, DOI: 10.5281/zenodo.5320566