Erythmelus (Erythmelus) toreador S. Triapitsyn, 2007

Triapitsyn, Serguei V., Berezovskiy, Vladimir V., Hoddle, Mark S. & Morse, Joseph G., 2007, A review of the Nearctic species of Erythmelus (Hymenoptera: Mymaridae), with a key and new additions to the New World fauna, Zootaxa 1641 (1), pp. 1-64 : 25-28

Erythmelus (Erythmelus) toreador S. Triapitsyn , sp. n.

( Figs 28–33 )

Type material. Holotype female on slide [ MLPA]: ARGENTINA. CÓRDOBA, Los Reartes , ex. Leptobyrsa

sp. on Eupatorium sp. (Original labels: 1. “ Erythmelus leptobyrsae A. O. [this is A.A. Ogloblin’s manuscript name] female male [symbols] Typus [several illegible words in pencil] Valle “Los Reartes” Cord. Leptobyrsa Eupatorium buniefolium [sic]”, 2. “3906”). Paratypes: ARGENTINA. CÓRDOBA, Los Reartes : 1 male on slide [ MLPA], mounted under the same coverslip with holotype (same data) ; 1 female on slide [ MLPA], labeled: “Los Reartes Eupatorium “. SANTA FE, Tortugas, 15.vi.1940, A.A. Ogloblin, ex. eggs of Corythaica cucullata (Berg) on Althaea sp. [16 females, 6 males on 19 slides, MLPA], with the following original labels : 2 females: 1. “ Erythmelus corythaicae A. O. [this is A.A. Ogloblin’s manuscript name] females [symbols] Las Tortugas, S. Fe 15. VI.1940. A. O. Huevos de Coryth. cucullata Berg Holotypus female [symbol]”, 2. “3907”, 3. [in pencil] “ Althaea 15.vi. Erythmelus corythaicae n. sp. Holotypo Espolon Paratipo S. Fe ” ; 12 females: “ Erythmelus corythaicae A. O. female [symbol] Las Tortugas, S. Fe 15. VI.1940. A. O. Huevos de Coryth. cucullata Berg ” ; 1 male: “ Erythmelus corythaicae male [symbol] S. Fe, Las Tortugas, Coryth. cucullata Berg ” ; 1 female, 1 male: “ Erythmelus drakei A. Ogloblin [this is A.A. Ogloblin’s manuscript name] female male [symbols] S. Fe Las Tortugas, 15. VI.1940 [several illegible words in pencil]” ; 1 male: “ Erythmelus drakei A. Ogl. male [symbol] S. Fe Las Tortugas, 15. VI.1940 [several illegible words in pencil]” ; 1 male: 1. “ Erythmelus corythaicae [crossed out] drakei A. O. male [symbol] Las Tortugas, S. Fe VI.1940 Los huevos de Coryth. cucullata B. Allotypus ”, 2. “3908” ; 1 male: 1. “ Erythmelus drakei male [symbol] Las Tortugas S. Fé, Paratypus ”, 2. “3908” ; 1 male: 1. “ Erythmelus corythaicae [crossed out] drakei A. O. male [symbol] Las Tortugas, S. F. VI.1940 Huevos de Coryth. cucullata Berg. Paratypus Fig. [in Russian ] Ant. ”, 2. “3908”, 3. [in pencil] “male [symbol] fig. [in Russian ] Ant. corythaicae S. Fé 1940 ” ; 1 female: “Las Tortugas female [symbol]”. Locality unknown, labelled: “ Erythmelus drakei female [symbol]” [1 female on slide, MLPA] .

Description. FEMALE (holotype and paratypes). Body length 461–535 µm. Body mostly brown to dark brown except base of gaster yellow, dorsellum and borders of axilla and scutellum light brown; midlobe of mesoscutum with a lighter (light brown) transverse submedian stripe. Appendages light brown to brown.

Antenna ( Figs 28 , 30 ) with short setae. Scape 5.2–5.4 x as long as wide; pedicel much longer than F1; F1– F3 and F5 each about as long as wide or slightly longer than wide (their length may vary even in the same specimen; F2 and F3 of one antenna partially fused in one of the paratypes), F4 and F6 usually subequal in length (when at least 1 longitudinal sensillum is present on F4) or otherwise F6 longer than F4, each much longer than wide and much longer than other funicular segments; F1–F3 subequal in length and each a little shorter than F5; F1–F3 and F5 without longitudinal sensilla, F4 without ( Fig. 30 ) or with 1 or 2 ( Fig. 28 ) longitudinal sensilla (in different combinations even on the two antennae in the same specimen, as follows: 0 and 0, 0 and 1, 1 and 1, 2 and 2), F6 with 2 longitudinal sensilla; clava about 4.0 x as long as wide, with 5 longitudinal sensilla.

Mesosoma ( Fig. 29 ). Mesoscutum wider than long, its midlobe with 1 pair of strong setae. Scutellum about as long as mesoscutum.

Wings. Forewing ( Fig. 31 ) 4.8–5.9 x as long as wide; blade slightly infumate behind venation but otherwise hyaline, with unevenly distributed setae only in the distal half; longest marginal cilia 2.0–2.9 x greatest width of wing. Hind wing 15–17 x as long as wide, a little shorter than forewing; blade slightly infumate distally; longest marginal cilia 4.8–4.9 x greatest wing width.

Metasoma ( Fig. 29 ). Gaster a little longer than mesosoma; ovipositor 7/10–4/5 length of gaster, barely exserted beyond apical gastral tergum and not exserted beyond apex of hypopygium, and 1.2–1.4 x length of metatibia.

Measurements of holotype (in µm). Body 535; head 92; mesosoma 203; gaster 240; ovipositor 142. Antenna: scape (including radicle) 79; pedicel 39; F1 12; F2 15; F3 15 (18); F4 39; F5 20; F6 44; clava 94. Forewing 430:88; longest marginal cilia 182. Hind wing 415:27; longest marginal cilia 130.

MALE (paratypes). Body length 375–541 µm. Similar to female except for the normal sexually dimorphic features such as antenna, genitalia ( Fig. 33 ), and the following. Flagellum 11–segmented, all flagellomeres shorter than scape. Forewing ( Fig. 32 ) 4.4–4.8 x as long as wide; longest marginal cilia 1.9–2.6 x greatest forewing width. Gaster shorter than mesosoma.

Etymology. The specific name is a noun in apposition, which roughly translates from Spanish as “bull handler”.

Diagnosis. Member of the flavovarius species group. Erythmelus (E.) toreador differs from E. (E.) rosascostai , which has a similarly narrow forewing but lacks longitudinal sensilla on F4 of the female antenna, also by the different chaetotaxy on the forewing. The forewing blade of E. (E.) toreador is unevenly setose in the distal half ( Figs 31 , 32 ) whereas that of E. (E.) rosascostai is more or less uniformly setose in the distal half ( Fig. 20 ). The longest marginal cilia of the female forewing are 2.0–2.9 x greatest forewing width in E. (E.) toreador whereas they are about 1.8 x greatest forewing width in E. (E.) rosascostai .

Hosts. Corythaica cucullata (Berg) and Leptobyrsa sp. (Tingidae) .

Figures

FIGURES 28, 29. Erythmelus (E.) toreador (female, holotype). 28. Antenna. 29. Body.

FIGURES 30, 31. Erythmelus (E.) toreador (female, paratype, Tortugas, Santa Fe, Argentina). 30. Antenna. 31. Forewing.

FIGURES 32, 33. Erythmelus (E.) toreador (male, paratype, Tortugas, Santa Fe, Argentina). 32. Forewing. 33. Genitalia.

FIGURES 19–21. Erythmelus (E.) rosascostai (Moreno, Buenos Aires, Argentina). 19. Antenna (female). 20. Forewing (female). Scale bars = 0.1 mm. 21. Genitalia (male).