Erythropompilus thailandensis Pitts & Shimizu, 2021

Shimizu, Akira, Pitts, James P., Yoshimura, Jin & Wahis, Raymond, 2021, New genus and species of Pompilinae spider wasps from the Oriental Region (Hymenoptera, Pompilidae), Journal of Hymenoptera Research 84, pp. 339-359 : 339

Erythropompilus thailandensis Pitts & Shimizu sp. nov.

Figures 5A-I , 6A-J

Material examined.

Holotype, ♀: ' THAILAND Nakhon Nayok Khao Yai NP near Training Center 2 14°24.515'N, 101°22.432'E 750m Pan traps 5-6.ii.2007 Wirat Sukho leg. T2235' (QSBG) . Paratypes: Thailand: 1♀, same data as that of holotype (QSBG) ; 1♀, same locality, nature trail in secondary forest, 14°24.522'N, 101°22.434'E, 750 m, Malaise trap, 5.vii-12.viii.2006, Pong Sandao leg., T399 (QSBG) ; 1♂, same locality, behind headmasters house, 14°24.781'N, 101°22.689'E, 770 m, Malaise trap, 5-12.vii.2006, Pong Sandao leg., T144 (QSBG) ; 2♂, same locality and collector, Malaise trap, 19-26.vii.2006, 150 (QSBG) ; 1♀, same locality, Lum Ta Kong View Point , 14°25.82'N, 101°23.754'E, 744 m, Malaise trap, 5-12.iv.2007, Pong Sandao leg., T2123 (QSBG) ; 1♂, same locality, 12-19.iv.2007, Wirat Sukho leg., T2126 (QSBG) ; 1♀, same locality, 12-19.iv.2007, Wirat Sukho leg., T2126 (QSBG) ; 1♂, same locality, moist evergreen forest near the reservoir, 14°27.119'N, 101°21.482'E, 699 m, Malaise trap, 19-26.xi.2006, Wirat Sookkho leg., T997 (QSBG) ; 1♀, Nakhon Ratchasima, Khao Yai NP, Cobra zone near fire protection office, 14°28.524'N, 101°22.928'E, 757 m, Malaise trap, 19-26.vi.2007, Pong Sandao leg., T2227 (QSBG) ; 1♀, Tang Prov., Nayong, Khaochong , 75 m, 7°33.068'N, 99°47.369'E, 2005 (QSBG) ; 1♀ 2♂, Trang Prov., near Nam Tok, Tan Prov. Khoa Chong Mt. , 140 m, 7°32'15"N, 99°47'35"E, vii.2005, D. Lohman (QSBG) ; 3♀ 1♂, same locality, date and collector, 7°32'15"N, 99°47'36"E (QSBG) ; 1♀ 2♂, same locality, date and collector, 7°32'16"N, 99°47'36"E (QSBG) ; 1♂, Trang Prov., Nayong Khaochong Lab , Malaise trap, 75 m, 7°33.38'N, 47°47.369'E, 20-22.vi.2005 (QSBG) ; 1♀, Khonkaen, Phu Pha Man NP, teak plantation, 16°43.241'N, 101°59.580'E 265 m, Malaise trap, 6-13.vi.2006, Vinai Boonma leg., T3 (EMUS) ; 6♀ 6♂, same locality, 16°44.837'N, 102°00.160'E 265 m, Malaise trap, 13-20.vi.2006, Rabeab Phatai leg., T1 (EMUS) ; 1♀ 5♂, same locality, 16°44.902'N, 102°0.182'E 245 m, Malaise trap, 14-21.vi.2006, Rabeab Phatai leg., T6 (EMUS) ; 1♀, Phetchabun, Thung Salaeng Luang NP, Gang Wang Nam Yen , 16°37.531'N, 100°53.745'E 721 m, Malaise trap, 31.v-7.vi.2007, Pongpitak Pranee & Sathit leg., T2088 (EMUS) ; 1♀, Phetchabun, Khao Kho NP office, 16°39.479'N, 101°08.105'E 260 m, Malaise trap, 5-12.vii.2006, Somchai Chatchumnan & Sa-ink Singtong leg., T163 (EMUS) ; 1♂, Phetchabun, Khao Kho NP, savana at nursery, 16°52.568'N, 101°08.104'E 520 m, Pan traps, 11-12.x.2006, Somchai Chatchumnan & Sa-ink Singtong leg., T802 (EMUS) ; 1♂, Phetchabun, Khao Kho NP, mix deciduous near office, 16°39.479'N, 101°8.105'E 260 m, Malaise trap, 5-12. ii.2007, Somchai Chachumnan & Saink Singtong leg., T1600 (EMUS) ; 1♀ 4♂, Phetchabun, Nam Nao NP, helicopter landing ground, 16°43.156'N, 101°35.118'E 890 m, Malaise trap, 24-30.vii.2006, Noopean Hongyothi leg., T278 (EMUS) ; 1♂, Phetchabun, Nam Nao NP, forest check point, 16°43.695'N, 101°33.797'E 921 m, Malaise trap, 13-20.xi.2006, Noopean Hongyothi leg., T1020 (EMUS) ; 1♂, Phitsanulok, Thung Salaeng Luang NP, mixed deciduous forest, 16°50.563'N, 100°51.757'E 481 m, Malaise trap, 2-9.x.2006, Pongpitak Pranee leg., T936 (EMUS) ; 2♂, same locality and collector, 16°50.319'N, 101°51.792'E 479 m, Malaise trap, 11-18.viii.2006, T568 (QSBG) ; 2♂, same locality and collector, Malaise trap, 1-8.ix.2006, T577 (QSBG) ; 4♂, same locality and collector, dry evergreen forest, 16°50.277'N, 100°52.917'E 486 m, Malaise trap, 25.ix-2.x.2006, T932 (QSBG) ; 3♂, same locality and collector, moist evergreen forest, 16°50.641'N, 101°52.894'E 557 m, Malaise trap, 11-18.viii.2006, T566 (QSBG) ; 3♂, same locality and collector, Malaise trap, 25.viii-1.ix.2006, T572 (QSBG) ; 1♀ 1♂, same locality and collector, evergreen forest, 16°50.217'N, 101°52.541'E 580 m, Malaise trap, 25.viii-1.ix.2006, T573 (EMUS) ; 1♀ 1♂, same locality and collector, Malaise trap, 11-12.viii.2006, T559 (EMUS) ; 2♂, Loei Phu Ruea NP, Subhnonghin , 17°28.772'N, 101°21.308'E 860 m, Malaise trap, 5-12.vii.2006, Patikhom Tamtip leg., T310 (EMUS) ; 1♂, Loei Phu Ruea NP office, 17°28.805'N, 101°21.242'E 870 m, Malaise trap, 12-19.vii.2006, Patikhom Tamtip leg., T315 (EMUS) ; 1♀, same locality, 19-26.vii.2006, Nukoonchai Jaroenchai leg., T318 (EMUS) ; 6♂, Chiang Mai, Huai Nam Dang NP, Thung Buatong View Point , 19°17.47'N, 98°36.033'E 1464 m, Malaise trap, 31.vii-7.viii.2007, Thawatchai Boonthum & Anuchart Chaimuengchun leg., T2849 (EMUS) .

Diagnosis.

Both sexes: mid and hind femora with small spines set in pits apicodorsally. Female: gena, in dorsal view, thin but roundly receding posteriorly (Fig. 5B ); and lateral margin of pronotal dorsum, in dorsal view, concave and scarcely narrowing anteriorly (Fig. 5B ). Male: frons, in profile, gently convex (Fig. 6J ); placoids large, much longer than half of flagellomere (Fig. 6E ); SGP very long and parallel-sided for most part (Fig. 6G ); and inner margin of parapenial lobe smooth (Fig. 6H, I ).

Description.

Holotype female. Length: Body 7.1 mm; forewing 6.6 mm. Head 1.4 × as broad as long. MID 0.57 × head width. UID:MID:LID = 7.6:10:8.1. POL:OOL = 1:0.72. Clypeus 2.5 × as broad as long. Gena, in profile, 0.3 × eye width. Scape:Fl1:Fl2 = 7.5:10:8.6; Fl1 4.4 × as long as thick, 0.86 × as long as UID. Longer spur of hind tibia 0.68 × hind tarsomere I. FW marginal cell removed from wing tip by 0.53 × its own length. SMC2:SMC3 = 1:1.6 on vein M, 1:0.70 on vein Rs. SMC2 narrowed on vein Rs by 0.90 × its length on vein M, receiving crossvein 1m-cu at basal 0.57. SMC3 narrowed on vein Rs by 0.40 × its length on vein M, receiving crossvein 2m-cu at basal 0.51, removed from outer wing margin by 1.5 × its own length.

The type series. Female. (Measurements of the holotype are given in parentheses.) Length: Body 5.1-9.0 (7.1) mm; forewing 4.7-8.0 (6.6) mm. Body and legs black, except for mesosoma mostly orange-red (Fig. 5D ) (in some specimens, pronotum anterolaterally, meso- and metapleura ventrally and propodeum black). Scape beneath, fore femur apically, fore tibia except for dorsally, and fore tarsomere 1 light brown. Fore femur except apically, fore tarsomeres 2-5, metasomal terga medially, and metasomal sterna posteriorly dark rufous. Wings translucent with brownish tint (Fig. 5E ).

Pubescence on dorsal part of mesosoma except for blackish part of propodeum, T1-5 medially and metasomal sterna posteriorly sericeous.

Head 1.3-1.4 (1.4) × as broad as long. Vertex slightly convex between eye tops (Fig. 5A ). Frons with frontal line very fine, almost obsolete near anterior ocellus. Antennocular line slightly inclined from antennal base toward eye (Fig. 5B ). MID 0.53-0.58 (0.57) × head width. UID:MID:LID = 7.6-8.0 (7.6):10:7.6-8.4 (8.1). POL:OOL = 1:0.63-0.72 (0.72). Clypeus 2.3-2.6 (2.5) × as broad as long; apical margin almost transversely straight (Fig. 5A ). Labrum with apical margin transversely straight or barely emarginate medially. Gena, in profile, thin, 0.2-0.3 (0.3) × eye width (Fig. 5H ). Scape:Fl1:Fl2 = 6.7 (7.5):10:7.9-8.9 (8.6); Fl1 3.9-4.9 (4.4) × as long as thick, 0.67-0.99 (0.86) × as long as UID.

Pronotum with posterior margin gently arcuate or subangulate medially (Fig. 5B ). Mesoscutum slightly raised posterolaterally. Disc of scutellum slightly convex above level of mesoscutum.

Mid tibia with about five spines externally, two or three spines internally (Fig. 5I ). Hind tibiae with about six long spines externally and internally (Fig. 5I ). Longer spur of hind tibia 0.64-0.74 (0.68) × hind tarsomere 1.

FW and HW as shown in Fig. 5E . Marginal cell removed from wing tip by 0.40-0.56 (0.53) × its own length. SMC2:SMC3 = 1: 1.3-1.9 (1.6) on vein M, 1: 0.55-0.79 (0.70) on vein Rs. SMC2 narrowed on vein Rs by 0.79-1.0 (0.90) × its length on vein M, receiving crossvein 1m-cu at basal 0.52-0.66 (0.57). SMC3 narrowed on vein Rs by 0.31-0.49 (0.40) × its length on vein M, receiving crossvein 2m-cu at basal 0.45-0.54 (0.51), removed from outer wing margin by 1.3-1.6 (1.5) × its own length. Crossvein cu-a perpendicular to vein A.

Male. Body 4.1-7.9 mm; forewing 4.1-7.6 mm. Body and legs black, but pronotum except anteriorly, meso- and metanota, metapostnotum, and meso- and metapleura except ventrally orange-red (Fig. 6C, J ) (in some specimens, frons along inner orbit also orange-red). Palpi, and pedicel and a few basal flagellomeres beneath (Fig. 6A ) light- to reddish brown. Scape beneath (Fig. 6A ), fore coxa, trochanter and femur apically, fore tibia except dorsally, and fore tarsus more or less yellowish-, light- or reddish brown.

Head 1.3-1.5 × as broad as long. Vertex, in frontal view, distinctly convex above level of eye tops (Fig. 6A ). Antennocular line distinctly inclined from antennal base toward eye (Fig. 6B ). MID 0.57-0.60 × head width. UID:MID:LID = 8.1-8.7:10:7.6-8.4. POL:OOL = 1:0.60-0.72. Clypeus 2.4-2.7 × as broad as long. Gena, in dorsal view, slightly thicker than in female (Fig. 6B ), in profile, 0.2-0.3 × eye width. Scape:Fl1:Fl2 = 8.1-9.8:10:10-11; Fl1 2.8-3.6 × as long as thick, 0.49-0.67 × as long as UID.

Mid tibia with four to six spines externally and two to six spines internally. Hind tibia with four or eight spines externally and four to six spines internally. Longer spur of hind tibia 0.67-0.82 × hind tarsomere 1.

FW and HW as shown in Fig. 6D . Marginal cell removed from wing tip by 0.40-0.50 × its own length. SMC2:SMC3 = 1:1.2-1.7 on vein M, 1:0.46-0.76 on vein Rs. SMC2 narrowed on vein Rs by 0.52-0.98 × its length on vein M, receiving crossvein 1m-cu at basal 0.48-0.65. SMC3 narrowed on vein Rs by 0.26-0.45 × its length on vein M, receiving crossvein 2m-cu at basal 0.50-0.66, removed from outer wing margin by 1.4-1.8 × its own length. Crossvein cu-a perpendicular to vein A.

SGP flattened ventrally with several long setae laterally near middle (Fig. 6G ). Genitalia (Fig. 6H, I ): volsella arcuately emarginate interiorly, broadened apically with rounded apex and short setae; parapenial lobe extending slightly beyond apex of volsella but not extending beyond apex of aedoeagus; aedoeagus very slightly narrowing subapically, slightly expanded at apex.

Etymology.

The species name is derived from its locality, i.e., Thailand.

Figures

Figure 5. Erythropompilus thailandensis Pitts & Shimizu, sp. nov., holotype, female A head in anterior view B head and pronotum in dorsal view C scutellum, metanotum, metapostnotum, and propodeum in dorsal view D whole body in lateral view E left fore and hind wings F left maxilla in lateral view G labio-maxillary complex in posterior view (arrow, preapical membranous area of prementum) H head and mesosoma in lateral view I mid and hind tibiae in dorsal view. Scale bars: 0.3 mm (F, G); 1 mm (A-E, H, I).

Figure 6. Erythropompilus thailandensis Pitts & Shimizu, sp. nov., paratype, male (from Phu Pha Man NP Teak plantation, Khonkaen, Thailand) A head in anterior view B head and pronotum in dorsal view C whole body in lateral view D left fore and hind wings E right flagellomeres 2 - 4 in medial view F metasomal sternum 6 in ventral view G subgenital plate in ventral view H genitalia in dorsal view I genitalia in ventral view J head and mesosoma in lateral view. Scale bars: 0.25 m.