Incertosulcus semillon Barbosa & Azevedo, 2020

Barbosa, Diego N. & Azevedo, Celso O., 2020, Synopsis of Incertosulcus Móczár, 1970 (Hymenoptera: Bethylidae), Journal of Natural History 54 (21 - 22), pp. 1363-1393 : 1374-1375

Incertosulcus semillon Barbosa & Azevedo sp. nov.

( Figures 2 (b), 7(a,b), 8(b))

Material examined

Holotype. ♀ Kenya, Rift Valley Prov [ince], Marich Pass field station, 917 m, 1.56633°N, 35.45800°E, Malaise trap, low canopy, riverine forest, 4–18 Apr [il] 2005, R. Copeland (NMKE).

Paratypes. ♀ Kenya, Rift Valley Prov [ince], Nguruman , n[ea]r Sampu River , 723 m, 1.90117°S, 36.05040°E, Malaise trap, n[ea]r base of Nguruman Escarpment, 27 Aug[st] – 10 Sep[tember] 2011, R . Copeland (NMKE); ♀ 22 May – 5 Jun [e] 2012 (UFES); ♀ Samburu Nat [ional] Res [erve], n[ea]r EwasoNg’iro River , 874 m, 0.56797°N, 37.53563°E, Malaise Trap, riverine forest, next to H[ea]dq[uar]t[e]rs, 4–18 Sep[tember] 2007, R . Copeland (NMKE).

Description

Female. Body length 5.5 mm. Forewing 2.6 mm. Head: head longer than wide. Malar space as long as VOL, convergent anteriorly. Mandible with three sharpened apical teeth.

Median clypeal lobe rounded; lateral lobe short; median clypeal carina outcurved complete, straight in dorsal view. Antenna short [not reaching the mesoscutum]; scape curved; pedicel caliciform; flagellomere I longer than pedicel; flagellomeres short. Eye small [0.5 x LH], oval. Frons strongly foveolate. Frontal angle of ocellar triangle right; ocelli small, DAO 1.0 × POL; ocellar fovea present. Dorsal half of occipital carina high, with side strigate; ventral half of occipital carina complete, high, with side strigate. Mesosoma: Dorsal pronotal area shorter than wide, foveolate, anterior margin outcurved, anterior corner angled, trapezoidal, lateral margin straight, posterior margin sinuous; longitudinal pronotal sulcus complete. Anteromesoscutum weakly foveolate, longer than mesoscutellum; longitudinal antero-mesoscutal sulcus complete; notaulus shallow, wide, polished; parapsidal signum shallow. Axilla strigate, shallow. Mesoscutum-mesoscutellar sulcus arched, laterally dilated; mesoscutellum short, foveolate. Metapectal-propodeal complex 0.5 × as long as wide; metapostnotum with longitudinal ridge between metaposnotal median carina and metaposnotal-propodeal suture; metapostnotal surface areolate; metapostnotal median carina complete; posterior projection of metapectal-propodeal complex short, narrow. Propodeal declivity areolate, with median and lateral carinae. Lateral surface of metapectal-propodeal complex areolate, with subdorsal and vertical carinae. Mesopleuron foveolate; posterior oblique sulcus foveolate; mesopleural suture with inner margin foveolate. Wings: macropterous; transverse median vein arched; stigma sub-developed, distal margin truncate. Metasoma: tergum I with ventral surface areolate, with lateral pilosity; tergum II with dorsal surface punctured, with lateral pilosity, ventral surface polished. Genitalia: T9 slender, not overlapping the 2vf. 2vf with anterior area (aa) narrow, posterior projection narrow, dorsal projection (dp) long; anterior section of dorsal flange of second valvifer (asf) transversally oriented. Shaft (1vv+2vv) longer than sting body (2vf+3vv), thin, 2vv and 1vv equally wide. 3vv longer than wide.

Colouration. Wings: bi-banded; light castaneous: scape, pedicel, mandible, palpi, pronotum, tegula, procoxa, trochanters, profemur, protibia, and tarsi; castaneous: flagellum, wing venation, mesocoxa, metacoxa, mesofemur, metafemur, mesotibia, and metatibia; dark castaneous: metasoma; dark castaneous nearly black: head and metapectalpropodeal complex.

Remarks

This species has some peculiarities, similar to I. vietnamensis ( Móczár, 1977) such as head longer than wide, median clypeal lobe rounded, dorsal pronotal area with longitudinal sulcus complete, longitudinal sulcus of anteromesoscutum complete, and the posterior projection of metapectal-propodeal complex long and wide. However, I. semillon sp. nov. has antenna with flagellomere I longer than pedicel, the eye small, the ocelli small, mesoscutellum with longitudinal sulcus, and pronotum and mesonotum light castaneous.

Figures

Figure 2. Habitus. A. I. sauvignonblanc sp. nov.; B. I. semillon sp. nov.