Setelacher lasallei Gumovsky and van Noortı,

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, Journal of Natural History 54 (9), pp. 611-620: 614-619

publication ID 10.1080/00222933.2020.1764647


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scientific name

Setelacher lasallei Gumovsky and van Noortı

sp. nov.

Setelacher lasallei Gumovsky and van Noortı  sp. nov.

Holotype. ♀ ( Figure 1View Figure 1 (a – d)), ‘ UGANDA: Western Region , Kibale National Park ( Figure 5View 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)GoogleMaps  . 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);GoogleMaps  ♀, Semuliki National Park ( Figure 5View 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);GoogleMaps  2 ♀ (one is a small variety), same data ( SIZK)GoogleMaps  . Central African Republic: ♀, Prefecture Sangha-Mbaéré, Parc National de Dzanga-Ndoki , Mabéa Bai ( Figure 5View 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);GoogleMaps  ♀, same data but 7 May 2001, sweep, CAR01-S85, SAM-HYM-P064431 ( SAMC);GoogleMaps  ♀, Prefecture Sangha-Mbaéré, Réserve Spéciale de Forêt Dense de Dzanga-Sangha ( Figure 5View 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);GoogleMaps  ♀, same data but 13 May 2001, CAR01-S146, SAM-HYM-P064433 ( SAMC);GoogleMaps  ♀, same data but 12 April 2001, CAR01-S138, SAM-HYM-P064435 ( SAMC)GoogleMaps  ; Gabon: ♀, Province de l ’ Ogooue-Maritime, Réserve des Monts Doudou ( Figure 5View 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)GoogleMaps  .


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 1View Figure 1 (a – d)); parascrobal area with white transverse line ( Figure 1View Figure 1 (d)), scape white, with its base and ventral half to two-thirds dark brown ( Figure 1View Figure 1 (a,b,d)), pedicel dark brown, F1 – F3 dark brown, F4 and F5 white ( Figure 1View Figure 1 (d)), occasionally with F4 darker in its basal 1/3 – 1/4 ( Figure 1View 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 1View 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 1View 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 1View Figure 1 (d)).

Head convex, 1.3× as wide as high in frontal view ( Figures 1View Figure 1 (d) and 2(d)); 1.4× as wide as long in dorsal view, subcircular in lateral view ( Figures 1View Figure 1 (a) and 2(b)). Eye height 4.0× malar space; mouth opening 2.7× as wide as length of malar space ( Figures 1View Figure 1 (d) and 2(c – e)). Torulus separated from lower clypeal margin by distance 1.2 – 1.3× as long as its diameter ( Figures 1View Figure 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 2View Figure 2 (d,e)). Mandible with two teeth and with minutely denticulate truncation ( Figure 1View Figure 1 (d)). POL slightly (in ratio of about 77:70) longer than OOL ( Figure 2View 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 1View 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 2View Figure 2 (a) and 3(b)), 1.9× in lateral view ( Figure 3View 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 2View 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 3View Figure 3 (a,b), arrowed) and with two pairs of strong bristles ( Figures 2View Figure 2 (a) and 3(a,b)). Metanotum with broad lateral panels and metascutellum (dorsellum) with anterior groove delimited by a flange ( Figure 3View Figure 3 (a – c)). Propodeum ( Figure 3View Figure 3 (c)) about ~1.4× as long as broad, ~3.2 – 3.4× as long as metasomal petiole ( Figure 3View Figure 3 (a)), bearing distinct basal cup, median carina and lateral plicae; propodeal callus with about five setae ( Figure 3View 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 1View 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 3View Figure 3 (d,e)). Ovipositor sheaths short, not protruding ( Figure 3View 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 1View Figure 1 (e)).

Male. Unknown.

Host. Unknown.

Distribution Afrotropical region ( Central African Republic, Gabon, Uganda; habitats depicted in Figure 5View Figure 5).


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 4View 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 1View 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,dView Figure 5). 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  ).


Ukraine, Kiev, Schmaulhausen Institute of Zoology


Iziko Museums of Cape Town


Natural History Museum, London


Schmaulhausen Institute of Zoology