Setelacher lasallei Gumovsky and van Noorti 2020, sp. nov.
Creators: name: Gumovsky, Alex
name: Bazhenova, Tetyana
name: Noort, Simon van
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Eulophidae
Setelacher
Setelacher lasallei

description: Setelacher lasallei Gumovsky and van Noortı sp. nov.
Holotype. ♀ (Figure 1 (a – d)), ‘ UGANDA: Western Region, Kibale National Park (Figure 5 (a – c)), Kanyawara, Makerere University Biological Field Station, 0.573°N, 30.361°E, 1484 m, 4 – 26.viii.2008, yellow pan trap, primary mid-altitude rainforest, UG08-KF10-Y 02 (S. van Noort), SAM-HYM-P064434 ’ (SAMC). Paratypes. UGANDA: 3 ♀, same data but 0.565°N, 30.358°E, 1506 m, UG08-KF7-Y06, SAM-HYM-P064427, SAM-HYM-P064428, SAM-HYM- P064429 (SAMC); ♀, Semuliki National Park (Figure 5 (d,e)), dry forest with some wet areas near cut logs, 670 m, 0.825°N, 30.061°E, 19 March 2013 (A. Gumovsky) (NHMUK); 2 ♀ (one is a small variety), same data (SIZK). Central African Republic: ♀, Prefecture Sangha-Mbaéré, Parc National de Dzanga-Ndoki, Mabéa Bai (Figure 5 (g)), 21.4 km, 53° NE Bayanga, 3.033°N, 16.415°E, 510 m, 1 – 7 May 2001, yellow pan trap, lowland rainforest, marsh clearing, CAR 01-Y06 (S. van Noort), SAM-HYM-P064430 (SAMC); ♀, same data but 7 May 2001, sweep, CAR01-S85, SAM-HYM-P064431 (SAMC); ♀, Prefecture Sangha-Mbaéré, Réserve Spéciale de Forêt Dense de Dzanga-Sangha (Figure 5 (f)), 12.7 km, 326° NW Bayanga, 3.007°N, 16.198°E, 420 m, 12 May 2001, sweep, CAR01-S134, Lowland Rainforest (S. van Noort), SAM-HYM-P064432 (SAMC); ♀, same data but 13 May 2001, CAR01-S146, SAM-HYM-P064433 (SAMC); ♀, same data but 12 April 2001, CAR01-S138, SAM-HYM-P064435 (SAMC); Gabon: ♀, Province de l ’ Ogooue-Maritime, Réserve des Monts Doudou (Figure 5 (h,i)), 25.2 km 304° NW Doussala, 2.227°S, 10.395°E, 660 m, sweep, 15 March 2000, lowland rainforest, undergrowth, low canopy in forest, GA 00- S100 (S. van Noort), SAM-HYM-P023920 (SAMC).
Description
Female. 1.9 (small specimens are rare) – 2.5 mm. Rufous, with more or less metallic dark brown colouration on head, lateral mesosoma (mesopleurae) and dorsum of metasoma (Figure 1 (a – d)); parascrobal area with white transverse line (Figure 1 (d)), scape white, with its base and ventral half to two-thirds dark brown (Figure 1 (a,b,d)), pedicel dark brown, F1 – F3 dark brown, F4 and F5 white (Figure 1 (d)), occasionally with F4 darker in its basal 1/3 – 1/4 (Figure 1 (a,b,d)); legs with fore coxa, fore and mid femora and fore and mid tibiae white to very pale brown, mid and hind coxae, hind femur and hind tibia dark brown to black, tarsi of all legs pale white to pale yellow (Figure 1 (a – c)). First dorsal tergum with a wide, posterior white cross-band extending to first sternum and continuing as a broad band in middle of lateral metasoma (Figure 1 (a – c)). Fore wing with two dark bands: proximal band near basal hair row and distal band under marginal vein (perpendicular to marginal vein); hind wing hyaline, basally with dark brown triangular patch (Figure 1 (d)).
Head convex, 1.3× as wide as high in frontal view (Figures 1 (d) and 2(d)); 1.4× as wide as long in dorsal view, subcircular in lateral view (Figures 1 (a) and 2(b)). Eye height 4.0× malar space; mouth opening 2.7× as wide as length of malar space (Figures 1 (d) and 2(c – e)). Torulus separated from lower clypeal margin by distance 1.2 – 1.3× as long as its diameter (Figures 1 (d) and 2(d)). Lower margin of clypeus slightly projecting as a small rectangle; upper margin of clypeus marked off as a line of creasy sculpture (Figure 2 (d,e)). Mandible with two teeth and with minutely denticulate truncation (Figure 1 (d)). POL slightly (in ratio of about 77:70) longer than OOL (Figure 2 (a)). Antenna with scape 4.5 – 5.2× as long as broad, pedicel 1.7 – 1.9× as long as broad. Flagellum widening towards its end: F5 (clava) ~2.0× wider than F1 (Figure 1 (d)), F1 about 1.8 – 2.0× as long as pedicel, F2 about 2.5×, F3 1.5×, F4 1.1×, F5 (clava) 1.4×; relative lengths of F1:F2:F3:F4:F 5 in ratio 9:8:7:5:7.
Mesosoma 2.0× as long as broad in dorsal view (Figures 2 (a) and 3(b)), 1.9× in lateral view (Figure 3 (a)). Pronotum conical, its anterior margin with four large bristles, its collum convex dorsally and this convex area bearing several setae and being delimited by a flange around it (Figure 2 (a)). Mesoscutum about 1.5× as wide as long, bearing two pairs of bristles in its mid part and two pairs of bristles on each shoulder; mesoscutellum ~1.2× as long as broad, with distinct sublateral grooves (Figure 3 (a,b), arrowed) and with two pairs of strong bristles (Figures 2 (a) and 3(a,b)). Metanotum with broad lateral panels and metascutellum (dorsellum) with anterior groove delimited by a flange (Figure 3 (a – c)). Propodeum (Figure 3 (c)) about ~1.4× as long as broad, ~3.2 – 3.4× as long as metasomal petiole (Figure 3 (a)), bearing distinct basal cup, median carina and lateral plicae; propodeal callus with about five setae (Figure 3 (a,c)).
Metasoma about 1.8 – 1.9× as long as broad, 1.3× as long as mesosoma. Petiole short, robust, slightly wider than long. First gastral tergum narrowed, the following terga much wider and convex (Figure 1 (a – c)). Basal width of syntergum slightly (~1.1×) larger than its length; cerci with two long curved and two shorter setae (Figure 3 (d,e)). Ovipositor sheaths short, not protruding (Figure 3 (d,e)).
Body (including head) about 1.5× as long as fore wing. Fore wing 2.7 – 3.0× as long as broad; marginal vein slightly (in ratio of about 330:318) longer than submarginal vein; costal cell 12.0 – 13.0× as long as broad; postmarginal vein 1.4 – 1.5× as long as petiolate stigmal vein; longest marginal seta 2.6× maximum width of marginal vein (Figure 1 (e)).
Male. Unknown.
Host. Unknown.
Distribution Afrotropical region (Central African Republic, Gabon, Uganda; habitats depicted in Figure 5).
Etymology
The species is named in honour of the late John La Salle, a friend and colleague, and an international authority on Chalcidoidea as a whole, and on the family Eulophidae in particular.
Comparative diagnosis. The new species is easily distinguishable from S. fasciatus Bouček (Figure 4) in the colouration of the antennal flagellum: F1 – F3 are dark brown to black and F4 – F5 are white in S. lasallei (Figure 1 (a,b,d)), whereas F2 – F4 are dark brown to black, and F1 and F5 are pale brown to creamy in S. fasciatus (Figure 5c,d). The two species may also easily be distinguished by body proportions, shape of dark bands of fore wings and leg colouration: the mesosoma and head are more robust and convex in S. lasallei (body slender in S. fasciatus), the stripes on fore wing are broader in S. lasallei (fore wing with fine stripes in S. fasciatus), and the hind femur and tibia are dark brown to black in S. lasallei (they are pale brown to creamy in S. fasciatus).
description: Published as part of Gumovsky, Alex, Bazhenova, Tetyana & Noort, Simon van, 2020, First record of the genus Setelacher Bouček (Hymenoptera: Eulophidae: Eulophinae) from the Afrotropical regionı with description of a new species, pp. 611-620 in Journal of Natural History 54 (9) on pages 614-619, DOI: 10.1080/00222933.2020.1764647, http://zenodo.org/record/4290339