Bembidion (Blepharoplataphus) teradai, Toledano, 2009

Toledano, Luca, 2009, Notes on the Bembidiina of Taiwan with description of three new species (Coleoptera: Carabidae), Acta Entomologica Musei Nationalis Pragae 49 (2), pp. 577-598 : 582-585

Bembidion (Blepharoplataphus) teradai sp. nov.

( Figs. 5 , 20 )

Type locality. Taiwan, Nansichi, Wulai, Taipei Hsien.

Type material. HOLOTYPE: J, ‘ TAIWAN, 23-xii-2001 / Nansichi, Wulai / Taipei Hsien / Terada – 77’ // HOLOTYPUS / Bembidion teradai sp.n. / Det. L. Toledano, 2009 [red]’ ( MSNV). PARATYPES: 6 JJ 9 ♀♀, same date and locality as the holotype ( NTUC, CTHJ, CTVR) ; 2 JJ 6 ♀♀, ‘ Wulai / Taipei Hsien / Taiwan // 4-XII-2001 / K. Terada leg.’ ( CMTJ) ; 1 J 1 ♀, ‘ Wulai Taiwan / 23-XII-2001 / K. Terada leg.’ ( CMTJ, CTVR). All paratypes labelled as ‘ PARATYPUS / Bembidion teradai sp.n. / Det. L. Toledano, 2009 [red]’.

Diagnosis. A Blepharoplataphus species with very wide elytra and humeri, very similar to Bembidion nirasawai Morita, 2008 from southwestern Japan, but distinguishable from this last for the apex of the aedeagus, rounded in B. nirasawai ( MORITA 2008) and ventrally hooked in B. teradai .

Description. Body length 5.38–5.84 mm. Black with faint metallic greenish reflections. Legs and antennae piceous black ( Fig. 5 ).

Head with deep, wide and parallel frontal furrows, not extending on clypeus. Eyes convex, antennae rather short (bl/al = 1.98–2.09).

Pronotum transverse (pw/pl = 1.42–1.48), rather narrow in relation to elytra (ew/pw = 1.75–1.76). Sides rounded, briefly sinuate before the short, slightly obtuse hind angles. Lateral channel very wide, anterior transverse impression short, in some specimens with some punctures, median line superficial, basal foveae somewhat square, very rugose, laterally delimited by a carina. Posterior margin straight in middle and oblique at sides.

Elytra (el/ew = 1.40–1.43) oval, very wide and convex, with humeri wide and rather rounded. Elytral striae 1–7 complete, visibly impressed, punctate-sulcate, scutellar stria long, apical stria long and connected with apical end of stria 5. Two discal elytral pores in interval 3 near stria 3.

Microsculpture distinct, consisting of small isodiametric, convex cells on head and pronotum and of transverse, rather irregular flat cells on elytra.

Male genitalia ( Fig. 20 ). Apex of median lobe ventrally hooked. For the other characters, typical shape and endophallus of the subgenus Blepharoplataphus . In particular, the endophallus shares the structure of the sclerites with B. nirasawai .

Etymology. Dedicated to Katsuyuki Terada, an accomplished specialist in Japanese and Taiwanese Carabidae , who gave me the opportunity to study the interesting fauna of Taiwan by kindly sending me the specimens dealt with in this paper.

Distribution. So far known only from the type locality.

Remarks. The morphological diversity within Blepharoplataphus is very low: the male genitalia and habitus of all species are very similar; B. teradai sp. nov. seems closely related to B. nirasawai , with which it shares almost identical male genitalia, except for the apical shape.

Figures

Figs.1–5. Bembidion spp., habitus. 1 – B. (Armatocillenus) sauteri Jedlička, 1954, holotype; 2 – B. (Desarmatocillenus) foochowense Lindroth, 1980; 3 – B. (Odontium) fusiforme Netolitzky, 1914; 4 – B. (Plataphus) takasagonis Habu, 1973; 5 – B. (Blepharoplataphus) teradai sp. nov., holotype.

Figs. 17–28. Bembidion and Sinechostictus spp., median lobe of the aedeagus. 17 – B. (Desarmatocillenus) foochowense Lindroth, 1980; 18 – B. (Odontium) fusiforme Netolitzky, 1914; 19 – B. (Plataphus) takasagonis Habu, 1973; 20 – B. (Blepharoplataphus) teradai sp. nov., holotype; 21 – B. (Trichoplataphus) miwai Jedlička, 1946; 22 – B. (Trichoplataphus) taiwanum Netolitzky, 1939; 23 – B. (Trichoplataphus) jelineki sp. nov., holotype; 24 – B. (Trichoplataphus) seijii sp. nov., holotype; 25 – B. (Ocydromus) chloreum Bates, 1873, specimen from Taiwan; 26 – B. (Ocydromus) shunichii Habu, 1973; 27 – B. (Ocydromus) peleum Jedlička, 1933, specimen from Taiwan; 28 – S. (Pseudolimnaeum) chuji Jedlička, 1951.