Dissomphalus verus Mugrabi & Azevedo

MUGRABI, DANIELE F. & AZEVEDO, CELSO O., 2013, Revision of Thai Dissomphalus Ashmead, 1893 (Hymenoptera, Bethylidae), with description of twenty four new species, Zootaxa 3662 (1), pp. 1-73 : 26-29

Dissomphalus verus Mugrabi & Azevedo , sp. nov.

( Figs 27–30 , 104 , 159–161 )

Description. MALE. Body length 3.65 mm. LFW 2.51 mm. Maximum wing width 1.07 mm. Color. Head and mesosoma black; metasoma dark castaneous.

Head. Mandible with five apical teeth. Clypeus with median lobe subtrapezoidal; median tooth rounded; median carina complete apically or nearly so, angled in profile. Ratio of first four antennal segments about 14:7:6:5. Frons strongly coriaceous, punctures large. LH 0.95 × WH, WF 0.63 × WH, WF 1.26 × HE, OOL 1.23 × WOT, DAO 0.35 × WOT, posterior ocelli distant from vertex crest 1 × DAO, frontal angle of ocellar triangle right, VOL 0.68 × HE. Vertex crest weakly concave. Occipital carina not visible in dorsal view.

Mesosoma. Pronotal disc strongly coriaceous, anterior margin ecarinate. Notauli deep, complete, widening posterad, converging posterad. Propodeal disc 0.55 × as long as wide; basal triangle rugulose, posterolateral area rugulose; median carina complete; lateral margins strongly convex, parallel; posterior carina well-defined, straight. Lateral of propodeum mostly striolate. Propodeal declivity mostly rugulose-strigate.

Metasoma. Tergal process with deep, subtriangular and sublateral pair of depressions; depressions with external lateral margin higher than internal lateral margin, 0.83 × as long as tergite II, diverging posterad, distant on top with short and dorsad tuft of setae ( Figs 27–30 ). Hypopygium with median stalk 1.15 × as long as hypopygeal plate; median stalk narrow; corner of anterior margin angular; lateral stalk of hypopygium 0.11 × as long as median stalk; posterior margin strongly concave; corner angalute ( Fig. 104 ).

Genitalia ( Figs 159–161 ). Genital ring produced, each half convex in dorsal view. Basiparamere with dorsal surface much wider apicad, much narrower than ventral surface. Paramere with basal area wider than basiparamere apex; apex rounded; apical margin weakly concave in ventral view, not curved; inner margin of ventral surface with triangular spine at median region. Basivolsella setose, with several thin, short and apical setae. Cuspis biramous. Aedeagus 3.72 × as long as wide; dorsal body of aedeagus wider basally, narrowing abruptly apicad, lateral margin strongly convex basally, parallel, not curved dorsad, apex with two pair of outer lobes; dorsal pair 1 × as long as wide, straight, with apex subangulate and dorsad, outer lateral with laminar process, elliptical, with lateral surface wider than dorsal and ventral surfaces; ventral pair tubular, short, slightly arched, laterad, with apical margin rounded and surface smooth, much shorter than dorsal lobe of aedeagus; base of dorsal body of aedeagus strongly sclerotized, weakly concave, with median region bilobate; ventral ramus of aedeagus as high as dorsal body, lateral margin straight, evenly narrow and base as narrow as apex. Apodeme extending beyond genital ring.

FEMALE unknown.

Material examined. Holotype, ♂. THAILAND. Chaiyaphum: Pa Hin Ngam NP, Mixed deciduous forest (Thepana waterfall), 15°38.920’N 101°25.077’E, 614 m, Malaise trap, 1-7.x.2006, Katae Sa-nog & Buakaw Adnafai leg., T656 . Paratypes: THAILAND. Malaise trap, Mae Hong Son : 1 ♂ Namtok Mae Surin NP, E/ Huai Fai Kor reservoir, 19°20.616’N 97°59.3’E, 27.i-3.ii.2008, Kamkoon;A leg., T3496 . Chiang Mai: 1 ♂ Doi Inthanon NP, Vachiratharn Falls , 18°32.311’N 98°36.048’E, 700 m, 30.viii-6.ix.2006, Y. Areeluck leg., T236 . Loei: Phu Ruea NP , 1 ♂ Subhnonghin , 17°28.772’N 101°21.308’E, 860 m, 5-12.vii.2006, Patikhom Tamtip leg., T310 ; 1 ♂ behind checkpoint, 17°27.829’N 101°21.360’E, 691 m, 5-8.vi.2007, Patikhom Tumtip leg., T2514 ; Phu Kradueng NP, Sutin Glong-lasae leg., 1 ♂ %deciduous%, 16°56.569’N 101°49.045’E, 274 m, 18-25.ix.2006, T950 , 1 ♂ Dry evergreen forest ( Pong neep forest unit), 16°56.589’N 101°42.074’E, 273 m, 4-11.xi.2006, T792 ; 1 ♂ Bamboo forest at Lam Huay Taad at Loei forest unit 2 (E-lerd), 16°56.565’N 101°48.896’E, 273 m, 25.ix- 2.x.2006, Sutin Glong-lasae leg., T954 ; 1 ♂ Koke Hin Ngam , 16°51.817’N 101°50.704’E, 270 m, 16-23.viii.2006, Sutin Khonglasae leg., T486 ; 1 ♂, Forest protection unit Loei.5 ( Phakbung ), 16°50.540’N 101°41.663’E, 406 m, 13-19.ii.2007, Wuthicahi kwanjam leg., T1499 ; 1 ♂ Road to Ta Krong waterfall of Na Noy Forest Unit, 16°48.913’N 101°47.634’E, 265 m, 26.xi-2.xii.2006, Suthin Gong-lasae leg., T1079 . Sakon Nakhon: Phu Phan NP , 1 ♂ Kam Hom waterfall at Haew Sin chai, 17°7.415’N, 104°1.179’E, 347 m, 16-22.ix.2006, Winlon Khongnara leg., T616 ; Nam Hom Waterfall # Sao Hi , 17°7.340’N 104°0.788’E, 344 m, Sailom Tongboonchai leg. , 2 ♂ 4-10.iii.2007, T2368 ; 1 ♂ 10-17.iii.2007, T2371 ; Behind office, 17°3.543’N 103°58.452’E, 312 m, Winlon Kongnara leg. , 4 ♂ 8-14.vii.2006, T197 ; 1 ♂ 27.vii-2.viii.2006, T206 ; Sailom Tongboonchai leg., 1 ♂ North of well, 17°3.543’N 103°58.452’E, 312 m, 11-17.i.2007, T1519 ; 1 ♂ West of well, 17°3.521’N 103°58.450’E, 322 m, 11-17.i.2007, leg., T1520 ; 17°3.488’N 103°58.497’E, 318 m, Sailom Tongboonchai leg., 1 ♂ Behind office, 15- 21.vii.2006, T202 ; Behind national park office , 3 ♂ 17-23.i.2007, T1524 ; 1 ♂ 23-30.i.2007, T1527 ; Phu Pha Yon NP, Channel , 16°55.639’N 104°10.748’E, 295 m, Manop Ngoyjansri & Chatree Cheaukamjan leg. , 3 ♂ 5- 11.vii.2006, T289 ; 1 ♂ 17-23.vii.2006, T295 ; 1 ♂ Deciduous dipterocarp forest, 16°55.449’N 104°10.757’E, 295 m, 17-23.vii.2006, T297 ; 1 ♂ Forest near Huay Nam Pung Dam , 16°54.713’N 103°54.294’E, 289 m, 19- 25.xi.2006, Sailom Tongboonchai leg., T1101 . Phitsanulok: Thung Salaeng Luang NP, Mixed deciduous forest ( Gang Sopa watrfall), 16°52.642’N 100°49.441’E, 481 m, Pongpitak Pranee leg. , 3 ♂, Pan trap, 16-17.x.2006, T756 ; Malaise trap, 1 ♂, 4-12.xi.2006, T771 ; 1 ♂ 16°52.464’N 100°49.665’E, 501 m, 28.x-4.xi.2006, T769 ; 2 ♂ Moist evergreen, 16°50.641’N 100°52.894’E, 557 m, 18-25.viii.2006, T569 ; 1 ♂ Mixed deciduous forest, 16°50.563’N 100°51.757’E, 481 m, 18-25.ix.2006, T930 ; Dry Evergreen forest , 16°50.277’N 100°52.917’E, 486 m , 2 ♂ 1-8.iv.2007, Pongpitak & Pranee & Sathit leg., T2394 , 1 ♂ 25.ix-2.x.2006, Pongpitak Pranee leg., T932 ; 1 ♂, Deciduous forest , 16°50.563’N 100°51.757’E 481 m, 8-15.iv.2007, Pongpitak & Pranee & Sathit leg. T2398 ; Khao Kho NP, Nursery , 520 m, Somchai Chatchumnan and Saink Singtong leg. , 1 ♂ 16°52.581’N 101°8.060’E, 12-19.x.2006, T808 ; 1 ♂ 16°52.573’N 101°8.077’E, 12-19.x.2006, T806 ; 1 ♂ 16°52.573’N 101°8.077’E, 26.x- 2.xi.2006, T812 ; 2 ♂ Savana at nursery, 16°52.568’N 101°8.104’E, 520 m, 5-12.x.2006, T804 ; 1 ♂ Checkpoint , 16°43.695’N 101°33.797’E, 921 m, 1-8.iii.2007, T2285 ; 1 ♂ Mix deciduous, 16°39.589’N 101°8.185’E, 168 m, 5- 101°8.123’E, 230 m , 1 ♂ 26.ii-5.iii.2007, T1610 ; 1 ♂ 19-26.ii.2007, T1607 ; 1 ♂ office, 16°39.550’N 101°8.123’E, 230 m, 12-19.vii.2006, T167 ; Mixed deciduous forest at Ta Phol river , 16°32.561’N 101°2.479’E, 242 m , 1 ♂ 5- 12.xi.2006, T968 ; 1 ♂ 12-19.xi.2006, T971 ; 2 ♂ 19-26.xi.2006,. T974 ; 1 ♂ 26.xi-2.xii.2006, T977 ; 1 ♂ Mixed deciduous forest, 16°32.546’N 101°2.501’E, 560 m, 26.xii.2006 - 2.i.2007, T1189 . Khonkaen : Nam Pong NP, office, Khamphol Jaidee leg. , 2 ♂ 16°37.201’N 102°34.481’E, 218 m, 19-26.vii.2006, T113 ; 16°37.341’N 102°34.467’E, 324 m, 2 ♂ 5-12.vii.2006, T115 ; 1 ♂ 11-18.vii.2006, T105 ; 16°37.377’N 102°34.454’E, 344 m, 1 ♂ 5-12.vii.2006, T106 ; 1 ♂ 12-19.vii.2006, T110 ; 1 ♂ 19-26.vii.2006, T111 ; Chaiyaphum: Tat Tone NP, Tawit Jaruphan leg., 1 ♂ Dry dipterocarp forest near swamp at Sab somboon forest unit, 16°1.059’N 101°58.603’E, 674 m, 5-12.xi.2006, T1137 ; Lawn near Sab Somboon forest unit, 16°0.792’N 101°58.472’E, 648 m , 2 ♂ 5-12.xi.2006, T1136 ; 1 ♂ 26.xi-3.xii.2006, T1145 ; 16°0.738’N 102°1.342’E, 195 m, Tawit Jaruphan&Orawan Budsawong leg., 4 ♂ Forest fire Protection station , 3-9.vi.2006, T2535 ; Chaiyapoom forest fire station , 1 ♂ 19-23.xii.2006, T1374 ; 1 ♂ 26.xii.2006 - 2.i.2007, T1377 ; Dry Dipterocarp Forest , 15°59.037’N 102°2.103’E, 250 m , 1 ♂ 19-26.vi.2006, Boonnak Nongpeu leg., T22 ; 1 ♂ 21-28.vi.2006, Leng Chanteab leg., T32 ; 1 ♂ 23-26.vi.2006, Lumyai Ittichan leg., T27 ; 1 ♂ 25-27.vi.2006, M. Sharkey leg., T10 ; 1 ♂ 26-29.vi.2006, Lumyai Ittichan leg., T30 ; Tawit Jaruphan & Orawan Budsawong leg., 1 ♂ Near stream, 15°58.771’N 102°2.397’E, 305 m, 26.vii-7.viii.2006, T227 ; Phu hang sing, 15°58.723’N 102°2.231’E, 290 m , 1 ♂ 5-12.vii.2006, T220 ; 1 ♂ 12-19.vii.2006, T223 ; Nursery near head water, 15°58.344’N 102°2.169’E, 257 m , 2 ♂ 5-12.viii.2006, T547 ; 1 ♂, 26.ii-2.iii.2007, T1737 ; 1 ♂ Entrance to Pa Eang waterfall, 15°57.520’N 101°54.442’E, 297 m, 12-19.x.2006, T681 ; 2 ♂ Water tank at Tat Fah waterfall, 15°56.468’N 102°5.855’E, 245 m, 19-26.iii.2007, T2354 ; Streamside at Tat Fah waterfall, 15°56.463’N 102°5.953’E, 242 m , 1 ♂ 19-26.iii.2007, T2352 ; 2 ♂ 26.iii-2.iv.2007, T2355 ; 1 ♂ Oficer house at Tat Fah waterfall, 15°56.461’N 102°5.955’E, 19-26.iii.2007, T2353 ; Pa Hin Ngam NP, Katae Sanog & Buakaw Adnafai leg., 4 ♂, Savana ( Thepana waterfall), 15°38.948’N 101°25.625’E, 604 m, 19-25.x.2006, T666 ; (Thepana waterfall) , 2 ♂ Mixed deciduous Forest , 15°38.920’N 101°25.077’E, 614 m, 1-7.x.2006, T656 ; Dry evergreen forest, 15°38.884’N 101°25.840’E, 605 m , 1 ♂ 7-13.x.2006, T661 ; 2 ♂ 13-19.x.2006, T664 ; 1 ♂ 19-25.x.2006, T667 ; 15°38.438’N 101°23.576’E, 780 m, 1 ♂ car park at Tung Dok Grajeaw , 6-12.vii.2006, T330 ; 2 ♂ Thung Dok Kra Jeow in Dry evergreen, Pan trap, 6-7.i.2007, T1451 ; 15°38.391’N 101°23.609’E, 750 m, Malaise trap, 1 ♂ creek at Tung Dok Grajeaw , 6-12.vii.2006, T329 ; 1 ♂ Car park at Thung Dok Kra Jeow , 13-19.i.2007, T1459 ; ecotone between mix deciduous and dipterocarp forest, 15°38.132’N 101°23.922’E, 698 m, 1 ♂ Pan trap, 3- 4.ii.2007, T1636 ; 1 ♂ Malaise trap, 19-25.ii.2007, T1652 ; 2 ♂ Dipterocarp forest , 15°38.099’N 101°23.921’E, 698 m, 1-7.ii.2007, T1644 ; 1 ♂ Nature trail at Lan Hin Nor , 15°37.615’N 101°23.436’E, 668 m, 9-15.iii.2007, T2328 . Suphanburi: 1 ♂, Pu Toei NP, Phu Toei hill top/road, 14°57.32’N 99°26.972’E, 650 m, 1-7.vii.2008, Saunbua.L. leg., T3138 . Ubon Ratchathani: Pha Taem NP , 1 ♂ Tung Na Meaung Waterfall , 15°30.914’N 105°35.369’E, 120 m, 6-12.iii.2007, Porntip Tonsu & Bunlu Sapsiri leg., T2144 ; 1 ♂ Wild flower field 1, 15°27.336’N 105°34.870’E, 232 m, 18-25.xi.2006, Sorawit and Thongdee leg., T1060 ; 1 ♂ First level-Huay Sa-nhom waterfall, 15°27.407’N 105°34.867’E, 230 m, 2-9.v.2007, Sorawit Mingman leg., T2185 14°28.524’N 101°22.928’E, 757 m; 1 ♂ Dong Ngu How area , 5-12.xii.2006, Pong Sandow leg., T1303 ; 2 ♂ Cobra zone near Fire protection office, 5-12.vi.2007, Pong Sandao leg., T2221 . Petchaburi : 1 ♂ Kaeng Krachan NP, Panernthung /km27/water pump, 12°49.151’N 99°22.483’E, 970 m, 5-12.ix.2008, Sirichai & Chusak leg., T4377 . Nakhon Nayok: 1 ♂ Khao Yai NP, Nature trail in secondary forest, 14°24.522’N 101°22.434’E, 750 m, 12-19.viii.2006, Pong Sandao leg., T402 . Chanthaburi: Khao Khitchakut NP, NE/ Prabaht Unit, Suthida & Charoenchai leg. , 1 ♂, 50 m, 12°48.779’N 102°9.181’E, 107 m, 7-14.vii.2008, T2976 , 2 ♂ 100 m, 12°48.842’N 102°9.144’E, 203 m, 7-14.vii.2008, T2973 ; Campground / Prabaht Unit , 12°48.852’N 102°9.204’E, 99 m , 1 ♂ 11-18.viii.2008, T2982 , 1 ♂ 28.vii-3.viii.2008, T2985 . Prachuab Khiri Khan: 1 ♂, Khao Sam Roi Yot NP, Nursery , 12°7.58’N 99°57.478’E, Pan trap, 3-4.vii.2008, Amnad & Yai leg., T3039 . Surat Thani: Khao Sok NP, Pongphan leg., 1 ♂, Klong Mog Unit , 8°53.725’N 98°39.025’E, 87 m, 31.vii-7.viii.2008, T3067 ; Bang Huaraed , 8°54.555’N 98°30.522’E, 122 m , 1 ♂, 7-14.iv.2009, T4569 , 1 ♂ 10- 17.viii.2008, T3361 . Nakhon Si Thammarat: Namtok Yong NP , 1 ♂ Road to Khao Mhen. 150 m, from Nern 499, 8°16.959’N 99°39.149’E 499 m, 15-22.vii.2008, Samnaokan.S. leg., T3096 ; 1 ♂, Klong Jang waterfall, 8°16.283’N 99°38.702’E, 154 m, 29.xii.2008 - 5.i.2009, Samnaokan;S. leg., T4290 ; Behind campground lavatory, 8°10.434’N 99°44.508’E, 80 m, U.prai.K. leg ., 2 ♂ 12-19.viii.2008, T3080 , 1 ♂ 29.vii-5.viii.2008, T3072 , 1 ♂ 19- 26.viii.2008, T3074 .

metasoma varying between dark castaneous with castaneous spots or fully castaneous; frontal with punctures small, shallow and irregularly sparse; vertex crest straight; lower tooth of mandible sub-angulate; last flagellomere with angulate apex; placoid sensillae elliptical; eye gibbous; scutellar groove slightly convex; ventral outer lobe of aedeagal dorsal body straight, varying between very short (apical margin of ventral pair not reaching basal region of ventral pair) and short (apical margin of ventral pair aligned with median region of ventral pair).

Remarks. Dissomphalus verus sp. nov. is similar to D. browni because of the following characteristics: hypopygium with long and narrow median stalk, lateral margins slightly convergent posterad, posterior margin with angulate corners, dorsal outer lobe of aedeagal dorsal body with laminar process, ventral outer lobe of dorsal body short and arched; aedeagal ventral ramus as long as dorsal body, apex with triangular cross-section. However, D. verus sp. nov. differs from D. browni as follows: lateral stalks of hypopygium triangular, apical region of median stalk with constriction, posterior margin slightly sinuous; base of paramere wider than basiparamere apex; base of aedeagal dorsal body wide, laminar process sickle-shaped with apical margin strongly concave; outer ventral lobe of dorsal body strongly arched with round apex.

Distribution. Thailand (Chaiyaphum, Mae Hong Son, Chiang Mai, Loei, Sakon Nakhon, Phitsanulok, Chaiyaphum, Suphanburi, Ubon Ratchathani, Petchaburi, Nakhon Nayok, Chanthaburi, Prachuab Khiri Khan, Surat Thani and Nakhon Si Thammarat).

Figures

FIGURES 24–38. Metasoma, 24–26, Dissomphalus epitus sp. nov., 24, metasoma in dorsal view; 25, metasoma in posterolateral view; 26, tubercle of tergal process in dorsal view; 27–30, D. verus sp. nov., 27, metasoma in dorsal view; 28, metasoma in postero-lateral view; 29, tergal process in dorsal view; 30, tubercle of tergal process in dorsal view; 31–33, D. prilus sp. nov., 31, metasoma in dorsal view; 32, tergal process in dorsal view; 33, tubercle of tergal process in dorsal view; 34–36, D. daneus

FIGURES 95–106. Hypopygium in dorsal view, 95, Dissomphalus. brevinervis; 96, D. browni; 97, D. chiangmaiensis; 98, D.

FIGURES 159–167. Male genitalia, 159–161, Dissomphalus verus sp. nov., 159, dorsal view; 160, apex of aedeagus in ventral view; 161, ventral view; 162–164, D. prilus sp. nov., 162, dorsal view; 163, apex of aedeagus in ventral view; 164, ventral