Two new species of the genus Methocha from Laos (Hymenoptera, Tiphiidae) Author Narita, Keisuke Author Mita, Toshiharu text ZooKeys 2018 775 59 68 http://dx.doi.org/10.3897/zookeys.775.24945 journal article http://dx.doi.org/10.3897/zookeys.775.24945 1313-2970-775-59 BB5E6CBE6573430B9E8945B39674DD76 BB5E6CBE6573430B9E8945B39674DD76 Methocha granulosa sp. n. Figs 13-15, 16-23 Materials examined. Holotype, ♂, LAOS: 19°33'N , 103°41'E , 570m alt., Hot spring near Ban Ban, Houa Phan Prov., 4. IV. 2011, T. Mita leg. (ELKU); Paratypes, 3♂, with same data as holotype (ELKU). Diagnosis. This species is characterized by combination of the following characters: the distally wide mandibles; the translucent distal margin of the clypeus; the distinct pleuro-propodeal suture; the striate and granulate propodeum; the faintly infuscate wings. This species can be easily distinguished from other Asian species by the above-mentioned characters. Description. Male. Head (Figs 16, 17). Height 0.7-0.9 times as long as wide in frontal view; temple weakly rounded; ocelli forming regular triangle, POL: AOL: DAO = 1.0: 1.0: 0.6-0.8; vertex punctate: punctures smaller and sparser than those on frons, 1.0-4.0 puncture diameters apart, with interspaces smooth; frons densely punctate: punctures 0.5-1.0 puncture diameters apart, deeply excavated above antennal lobes; antennal lobes developed; gena punctate as vertex; clypeus covered with small punctures, distinctly convex, apical 1/5 translucent, with apex subtruncate; mandible not narrowed distally, lower tooth longer than upper tooth; maxillary palpus slightly shorter than length of pronotum, length (width) of segments I-VI showing following ratio: 4.2 (1.2): 3.3-5.0 (1.2): 5.0-6.7 (1.2): 6.7-8.3 (1.2): 5.8-6.7 (1.2): 5.0-8.3 (1.2); length (width) of flagellomeres I-III showing following ratio: 2.0-2.4 (1.6): 2.6-2.9 (1.6): 2.7-3.0 (1.6). Mesosoma (Figure 15). Pronotal disc more or less covered with shallow punctures, with interspaces smooth, anterior transverse carina absent, lateral surface smooth; mesoscutum punctate: punctures denser and smaller around anterior 1/3, larger and sparser at posterior 2/3, punctures sometimes entirely sparser; notauli indicated by transversely striate wide depression, reaching posterior 1/2 to 2/3, posterior margin effaced; mesoscutellum elevated, dorsal surface sparsely, lateral slope finely punctate, sometimes almost entirely impunctate, lateral lower surface transversely rugose by weak carinae, sometimes almost smooth; mesepsternum convex, smooth, with several small punctures, episternal sulcus deep, precoxal sulcus obscure, faintly depressed; metanotum elevated, smooth, laterally striate, anterior margin with deep crescentic depression; metapleural region smooth, postero-dorally longitudinally rugose, with pleuro-propodeal suture distinct, arising from lower pit to propodeal spiracle; dorsal surface of propodeum (Figure 18) more or less longitudinally rugose on anterior 1/3, with interspaces granulate, medial 1/3 transversally rugose, with interspaces granulate, lateral surface sparsely punctate: punctures 2.0-4.0 punctures diameters apart, with interspaces smooth, around pleural-propodeal suture rugose. Figures 13-15. Methocha granulosa sp. n., male, paratype. 13 Dorsal habitus 14 lateral habitus 15 mesosoma, lateral view. Legs. Hind coxa dorsally carinate, parabolically elevated in lateral view; claw (Figure 19) strongly curved at apical 1/3, tridentate, subapical tooth stout, truncate, basal tooth minute, less than 1/5 as long as subapical tooth. Metasoma. Tergites smooth with sparsely located punctures and setae with fine punctures; ATL: MTL: PTL = 1.0: 2.9-3.3: 2.4-3.0; T1 (Figure 20) with pair of strong carinae present before spiracle, rugose and weakly excavated medially between carinae, medial furrow present on anterior 4/5, shallower posteriorly; anterior transverse depression of T2-T4 costate, T5-T7 without carinae, smooth; posterior margin of S2-S6 with row of brown setae; S7 with large punctures: punctures 1.0 puncture diameter apart, apical margin semicircularly cleft; ventral surface of hypopygium rugose, hairy; paramere (Figure 21) narrow, apical 1/3 slender and nearly straight; aedeagus (Figs 22, 23) with apical membranous lobe, apical hook strongly curved ventrad; aedeagal apodeme almost straight except distal apex laterally. Figures 16-23. Methocha granulosa sp. n., male, holotype. 16 Head, frontal view 17 head, lateral view 18 propodeum 19 hind claw 20 T1, dorsal view 21 right paramere (right side is dorsal), lateral view 22 aedeagus, dorsal view, arrow indicating apical membranous lobe 23 aedeagus, lateral view (right side is dorsal). Scale bars are given in mm. Color. Black; antenna dark brown; distal margin of clypeus translucent yellow; maxillary palpus dark testaceous; apical 1/4 of mandible dark brown; tegula brown; wings faintly infuscate; legs brown. Measurements. BL 7.00-7.5 mm; HL 0.9-1.3 mm, HW 1.2-1.4 mm, WF 0.6-0.7 mm, EL 0.7-0.8 mm, ML 2.3-2.7 mm, MW 1.0-1.3 mm, FWL 4.5-6.0 mm. Etymology. The name is derived from the propodeal sculpture. Distribution. Laos: Houa Phan Province. Remarks. The female is unknown.