Eopriocnemis albiflagellata Loktionov et Lelej, 2019

Loktionov, V. M., Lelej, A. S. & Liu, J. - X., 2019, A new genus of spider wasps (Hymenoptera, Pompilidae) from China, Far Eastern Entomologist 376, pp. 1-14 : 6-10

Eopriocnemis albiflagellata Loktionov et Lelej , sp. n.

http/ urn:lsid:zoobank.org:act:238E3492-98A1-4427-A9B0-099F093C78EB

Figs 1–29

TYPE MATERIAL. Holotype – ♀, CHINA: Hainan, Mt. Bawangling , 7–11.VII

2006, Liu Jingxian, No. 2016001095 ( SCAU). Paratype - ♂, CHINA: Hainan, Mt .

Jianfengling, 5–7. VI 2007, Weng Liqiong, No. 2016000254 ( SCAU).

DESCRIPTION. FEMALE. Body length 6.6 mm; fore wing length 6.4 mm. Head black; clypeus ivory with longitudinal baso-medial light brown stripe ending small spot medially ( Fig. 3 ); mandible ivory in basal half, light brown preapically and dark brown apically; antenna black with F6–F9 entirely ivory and apical flagellomere brown ( Figs 1, 2 ); labial and maxillary palps light brown. Mesosoma black and yellow-red ( Figs 1, 2, 6 ); pronotum black with transverse ivory stripes antero- and posterolaterally; mesoscutum black; tegula yellow-red; mesoscutellum yellow-red with ivory spot postero-medially; metanotum yellow-red with ivory spot antero-

medially; metapostnotum brown laterally and yellow-red medially; propodeum mostly yellow-red with brown transverse stripe anteriorly; propleuron yellow-

brownish; meso- and metapleuron yellow-red. Metasoma black and yellow-red

( Figs 1, 2 ); T1 black basally, yellow-red medially and brown apically; T2 mostly yellow-red with brown postero-medial spot; T3 yellow-red in basal half and dark brown in apical part; T4–T6 black; S1 black basally and yellow-red apically; S2

and S3 yellow-red; S4 brown; S5 and S6 black. Legs mostly yellow-red ( Figs 1, 2 );

meso-, metafemur and metatibia brown apically. Fore wing slightly infuscate with weak brownish spot on SMC2, and somewhat dark apical portion ( Fig. 17 ). Hind wing slightly infuscate with barely dark apical portion ( Fig. 18 ).

Frons ( Fig. 3 ) with indistinct median line in basal half; mesoscutum, mesoscutellum and metanotum with denser punctures and somewhat less polished than on frons; metapostnotum polished with fine transverse striae disconnected medially by longitudinal median furrow widened anteriorly ( Figs 7, 8 ); propodeum matt with fine punctures in basal part and fine transverse striae in apical half; meso- and metapleuron somewhat polished with denser than on mesoscutum punctures. Metasoma mostly polished with dense fine punctures; T6 and S6 matt. Body without setae except following: frons along inner orbit with one long and few shorter light brown setae; clypeus with two long suberect light brown setae postero-medially; mandible with 3–4 suberect light brown setae medially and subapically; prementum with few long light brown scattered setae; procoxa and S2–S5 with scattered long light brown setae; T6–S6 with dense long and short erect setae. Mesosoma with inconspicuous gray micropubescence; metasoma with denser than on mesosoma appresed micropubescence.

Width of head in frontal view 1.1× its height. Vertex noticeably convex between eyes tops ( Fig. 3 ). Lower frons strongly convex, upper frons gently convex ( Fig. 4 ).

Inner orbits weakly convergent below and subparallel above ( Fig. 3 ). Half of MID

1.2× eye width. Posterior margin of vertex weakly concave (dorsal view) ( Fig. 5 ).

Clypeus width 2.3× its height; evenly convex medially with concavity anterolaterally;

bitus, dorsal view; 10 – habitus, lateral view; 11 – head, frontal view; 12– head, lateral view;

13 – head, pronotum and mesoscutum anteriorly, dorsal view; 14 – mesosoma, lateral view;

15 – axilla, mesoscutellum, metanotum, metapostnotum, propodeum and T1, dorsal view; 16

– S5 posteriorly and S6, ventral view. Scale bar: 9, 10 = 1.0 mm; 11–13, 15 = 0.2 mm; 14 =

0.5 mm; 16 = 0.1 mm.

anterolateral corner broadly rounded; anterior margin indistinctly emarginate medially in frontal view ( Fig. 3 ). Apical margin of labrum arcuately emarginate medially. Malar space 0.4× pedicel width. Gena weakly narrowing posteriorly in lateral view ( Fig. 4 ), and gently rounded in dorsal view ( Fig. 5 ). Apex of apical flagellomere pointed. Length relation of scape, pedicel and all flagellomeres:

31:12:49:43:43:44:42:41:40:37:34:35. Pronotum in dorsal view narrowing anteriorly;

shoulder gently rounded; dorsum along posterior margin noticeably depressed forming angulate shape in middle; posterior margin arcuately emarginate medially.

Mesoscutum slightly sloped anteriorly; parapsids finely impressed touching anterior and posterior margins of mesoscutum. Discs of mesoscutellum and metanotum barely raised above level of mesoscutum and propodeum ( Fig. 6 ). Metapostnotum medially with subparallel anterior and posterior margins; anteriorly almost straight,

posteriorly with small median triangle ( Figs 7, 8 ).

Fore wing ( Fig. 17 ) with SMC2 receiving crossvein 1m-cu at almost at middle;

SMC2 0.7× SMC3 length on vein M, and 0.85× SMC3 length on vein Rs; SMC3

receiving crossvein 2m-cu somewhat basad at middle; crossvein 2rs-m barely curved;

crossveins 3rs-m and 2m-cu indistinctly S-shape curved; crossvein cu-a postfurcal.

Hind wing on Fig. 18 . Pro-, meso- and metatarsomere 1 with scattered short spines ventrally; protarsomere 2 with two rows of short spines ventro-laterally, two spines in each row; protarsomeres 3–5 without spines ventrally. Mesotarsomere 2 with three rows of short spines ventro-laterally, 2–3 spines in each row; mesotarsomere 3

with few short spines ventrally; mesotarsomeres 4 and 5 without spines ventrally.

Metatarsomere 2 ventrally with median row consisting of three short spines and two spines on each sides of row preapically; metatarsomere 3 with median row consisting of two short spines ventrally; metatarsomeres 4 and 5 without spines ventrally.

Metatibia dorsally with row of scale-like teeth each of them ending with short spine; outer side of dorsal face with row of spines ( Figs 27, 28 ). Orbicula very small.

MALE. Body length 5.4 mm; fore wing length 4.9 mm. Head dark brown;

clypeus ivory ( Fig. 11 ); mandible ivory in basal half, light brown preapically and dark brown apically; antenna black with scape and pedicel yellow ( Fig. 10 ); labial and maxillary palps yellow. Mesosoma brown and yellow ( Figs 9, 10, 14 ); pronotum dark brown with transverse ivory stripes antero- and posterolaterally; mesoscutum dark brown; tegula pale; mesoscutellum brown with yellowish spot postero-medially;

metanotum and metapostnotum brown; propodeum mostly yellow with brownish transverse stripe anteriorly; propleuron brown; mesopleuron yellow with anterior part brownish; metapleuron yellow. Metasoma brown with somewhat yellowish T1

and S1 apically, T2 and S2, T3 and S3 basally ( Figs 9, 10 ). Legs mostly yellow (Figs

9, 10); metafemur and metatibia brownish apically. Fore wing slightly infuscate with indistinct brownish spot on SMC2, and somewhat darker apical portion ( Fig.

19). Hind wing slightly infuscate ( Fig. 20 ).

Frons with indistinct median line in basal half ( Fig. 11 ). Mesoscutum, mesoscutellum and metanotum polished with denser and coarser punctures than on frons and pronotum; metapostnotum polished with indistinct transverse striae disconnected by longitudinal median furrow; metapostnotum posteriorly with median small matt triangle; propodeum polished with punctures somewhat larger than on mesoscutum;

holotype, ♀; 19–24, 29 – paratype, ♂. 17, 19 – fore wing; 18, 20 – hind wing; 21 – genitalia,

ventral view; 22– genitalia, lateral view; 23 – hypopygium, ventral view; 24 – hypopygium,

lateral view; 25, 26 – metaclaw; 27 – metatibia, dorsal view; 28, 29 – metatibia, lateral view.

Scale bar: 17–20 = 1.0 mm; 21–26 = 0.1 mm; 27, 28 = 0.5 mm; 29 = 0.2 mm.

meso- and metapleuron polished with fine punctures. Metasoma polished; terga with fine punctures; sterna without distinct punctures. Body without setae except following: frons along inner orbit with one long light brown setae; clypeus with few long suberect light brown setae anteriorly mandible with few suberect; light brown setae medially; S2–S5 with scattered short erect setae; T6–S6 with dense short erect setae. Body with sparse gray micropubescence.

Width of head in frontal view 1.1× its height. Frons evenly convex ( Fig. 12 ).

Inner orbits almost subparallel below and indistinctly divergent above ( Fig. 11 ).

Half of MID 1.2× eye width. Posterior margin of vertex barely concave (dorsal view) ( Fig. 13 ). Clypeus barely convex; anterolateral corner broadly rounded;

anterior margin straight; width 2.6× its height. Mandible with subapical blunt tooth.

Malar space 0.45× pedicel width. Gena noticeably widened posteriorly in lateral view ( Fig. 12 ). Antenna slender ( Fig. 10 ), relation of length of scape, pedicel and

F1–F10: 22:10:25:22:25:24:24:23:22:22:21:21:? (apical flagellomere lost). Pronotum in dorsal view narrowing anteriorly; shoulder gently rounded; dorsum along posterior margin less depressed than in female and forming angulate shape in middle;

posterior margin arcuately emarginate medially. Mesoscutum slightly sloped anteriorly; parapsids finely impressed not touching anterior margin of mesoscutum.

Discs of mesoscutellum and metanotum barely raised above level of mesoscutum and propodeum ( Fig. 14 ). Metapostnotum medially with anterior and posterior margins subparallel.

Fore wing ( Fig. 19 ) with SMC2 receiving crossvein 1m-cu somewhat basad at middle; SMC2 0.8× SMC3 length on vein M, and 1.1× SMC3 length on vein Rs;

SMC3 receiving crossvein 2m-cu somewhat basad at middle; crossvein 2rs-m barely curved; crossvein 3rs-m almost straight; crossvein 2m-cu indistinctly S-shape curved;

crossvein cu-a postfurcal. Hind wing on Fig. 20 . Protarsomere 1 with two rows of short and weak spines ventro-laterally, two spines in each row; protarsomeres 2–5

without spines ventrally; meso- and metatarsomere 1 with two rows of short spines ventro-laterally, 5–7 spines in each row; meso- and metatarsomere 2 with two rows of short spines ventro-laterally, two spines in each row; meso- and metatarsomeres

3–5 without spines ventrally. Metatibia outer side in dorsal view with row of spines.

Orbicula very small. S6 posteriorly straight with arcuate projection medially and small straight tooth-like hook laterally ( Fig. 16 ). Hypopygium in ventral view weakly widened basally and narrowed apically, with arcuately emarginated apical margin

( Fig. 23 ); in lateral view flattened, somewhat convex baso-medially, with scattered long erect setae ventro-apically ( Fig. 24 ). Paramere in lateral view widened basally and narrowing apically, with long bristles ( Fig. 22 ); paramere and parapenial lobes equal in length, volsella somewhat shorter than paramere ( Fig. 21 ).

DISTRIBUTION. China (Hainan).

ETYMOLOGY. The specific name albiflagellata originates from Latin alba (=

white) and flagellum (=antenna) and refers to the coloration of female antenna which is black with F6–F9 entirely ivory-white.

SEX ASSOCIATION. We consider the female and male as opposite sexes of the same species based on the following characters: the pronotum in lateral view without anterior declivity, its dorsum barely convex ( Figs 6 , 14 ); the axillae broad and deep, not separated medially ( Figs 8 , 15 ); the metapostnotum long ( Figs 8 , 15 );

the T1 basally with long petiole ( Figs 7 , 15 ); similar venation of fore wing ( Figs 17,

19); similar coloration and punctation of body ( Figs 1, 2 , 9, 10 ).

Figures

Figs 1–8. Eopriocnemis albiflagellata Loktionov et Lelej, sp. n., holotype, ♀. 1 – habitus,

Figs 9–16. Eopriocnemis albiflagellata Loktionov et Lelej, sp. n., paratype, ♂. 9 – ha-

Figs 17–29. Eopriocnemis albiflagellata Loktionov et Lelej, sp. n. 17, 18, 25, 27, 28 –