Longitergus similis Pham, Bai, Heiss & Cai, 2013, n.sp.

Longitergus similis n.sp. (Figs. 18–33) Material examined: Holotype male labelled: Vietnam, Ninhbinh Prov. / Cuc Phuong Park, 350m / N 20 ° 21.107 / E 105 ° 35.378 / 16 V 2012 M.L.Pham // deposited in CAU; paratypes: 2 males, 2 females collected with holotype (CAU, CEHI); these types are designated and labelled accordingly. Diagnosis. Closely related to Longitergus productus n.sp., sharing all essential body structures and dimensions, from which it is distinguished by the characters given below. L. productus n.sp. L.similis n.sp. Pronotum: (Figs. 1,12,15) (Figs. 18,21) Anterolateral angles angulate, margins beset with more rounded, margins setigerous tubercles without setigerous tubercles Disk medially wide granulate ridge narrower granulate carina Posterolateral humeri without granulate elevation distinct granulate elevation posteriorly of sublateral carina posteriorly of sublateral carina Pilosity of legs and long, stiff and erect setae on short and adpressed setae on Antennae larger tubercles smaller tubercles Genitalic stuctures (Figs. 6–11) (Figs. 27–33) (see differences) Other smaller differences observed range within the expected variability and are not of specific value. As the detailed description of L. productus n.sp fits perfectly—except the differences listed above—also to L. similis n.sp., it seems unreasonable to repeat its description. The new species can be easily recognized.. Measurements. Holotype male: Length 4.43; length / width of head 0.99 / 1.14; l/w pronotum 0.51 / 1.54; l/w scutellum 0.4 / 1.25; length of antennal segments I/II/III/IV = 0.46 / 0.33 / 0.55 / 0.36; ratio length of antennae / width of head 1.49; width of abdomen across tergite IV 2.45. Variation of size in paratypes: males 4.15–4.58; females 5.42–5.44 Etymology. Similis>Latin