Bembidion (Trichoplataphus) jelineki, 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 : 586-589

Bembidion (Trichoplataphus) jelineki sp. nov.

( Figs. 8 , 11 , 23 )

Type locality. Taiwan, Shuangchi, near Fulung, Taipei Hsien.

Type material. HOLOTYPE, J, ‘ TAIWAN, 14–iii–2002 / Shuangchi, near / Fulung, Taipei Hsien / Terada – 94 // HOLOTYPUS / Bembidion jelineki sp.n. / Det. L. Toledano, 2009 [red]’ ( MSNV). PARATYPES: 5 JJ 8 ♀♀, same date and locality as the holotype ( NTUC, KTHJ, CTVI) ; 2 JJ, ‘ Kunliah / Taipei Hsien / Taiwan // 18-II-2002 / K. Terada leg. (handwritten)’ ( SMTJ, KTHJ). All paratypes labelled as ‘ PARATYPUS / Bembidion jelineki sp.n. / Det. L. Toledano, 2009 [red]’.

Diagnosis. A black Trichoplataphus with dark legs and relatively narrow pronotum (pw/pl = 1.34–1.37), distinguishable from B. taiwanum by a narrower pronotum and from B seijii sp. nov. by shorter hind angles.

Description. Length 4.68–5.80 mm. Black with very faint bluish metallic reflections. Femora piceous, rest of legs and antennae dark brown except for red antennomere 1 ( Fig. 8 ).

Head wide, with convex eyes, frontal furrows slightly convergent, deep and slightly rugose, antennomeres elongate (bl / al = 1.75–1.87).

Pronotum (pw/pl = 1.34–1.37) ( Fig. 11 ) less transverse than in the other Taiwanese species of Trichoplataphus except for B. miwai (in B. miwai , pw/pl = 1.22) and narrower than in the other species (ew/pw = 1.59–1.62). Sides rounded, slightly sinuate before the almost square hind angles. Lateral channel narrow in anterior third, then wider and flat, restricted only at hind angle. Anterior transverse impression and median line superficial, posterior transverse impression deeper, slightly rugose. Basal foveae very small, situated at each end of posterior transverse impression, laterally delimited by slightly raised, rugose area. Posterior margin almost straight with sides slightly oblique.

Elytra rather wide (el/ew = 1.50–1.55), suboval, convex, with well marked humeri, striae 1–7 complete, punctate-sulcate, scutellar and apical stria long, apical one connected with stria 5, two discal elytral pores in interval 3 adjoining stria 3.

Microsculpture distinct as small, convex, isodiametric cells on head, visible as superficial, very slightly transverse, flat cells on pronotum and almost absent on elytra, visible only in some areas of elytral apex as superficial, extremely narrow, transverse cells.

Male genitalia ( Fig. 23 ). Very similar to those of B. eurygonum Bates, 1883 . Median lobe widest at about midlength, apex gently bent ventrally. Viewed from the left side, apicoventral process of main sclerite shaped as a mirror image of letter “C”, more extended and less sclerotized than the structure in B. seijii sp. nov.

Intraspecific variability. One female paratype has three discal elytral pores on the right elytron, once more demonstrating that the number of discal elytral pores is not a good supraspecific indicator in the Bembidiina ( TOLEDANO & SCIAKY 2004) .

Etymology. Dedicated to my friend Dr. Josef Jelínek, accomplished specialist in sap beetles ( Coleoptera : Nitidulidae ) and fellow of many interesting conversations about entomology and other topics, enriched by his incredible knowledge of foreign languages and his subtle humour.

Distribution. So far known only from Taipei Hsien, Taiwan.

Remarks. Bembidion jelineki sp. nov. seems phylogenetically closely related to the Japanese species B. eurygonum . I was able to compare the new species with several specimens of B. eurygonum , including the type specimen (BMNH), which have a lighter, dark brown to piceous elytral colour and sulcate but not punctate elytral striae. The male genitalia of B. jelineki sp. nov. and B. eurygonum , however, look almost identical. At present I am unable to state if B. jelineki sp. nov. could be a subspecies of B. eurygonum instead of a sister species.

Figures

Figs. 6–9. Bembidion spp., habitus. 6 – B. (Trichoplataphus) miwai Jedlička, 1946; 7 – B. (Trichoplataphus) taiwanum Netolitzky, 1939; 8 – B. (Trichoplataphus) jelineki sp. nov., holotype; 9 – B. (Trichoplataphus) seijii sp. nov., holotype.

Figs. 10–12. Bembidion spp., head and pronotum. 10 – B. (Trichoplataphus) taiwanum Netolitzky, 1939; 11 – B. (Trichoplataphus) jelineki sp. nov., holotype; 12 – B. (Trichoplataphus) seijii 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.