Dinotrema teutoniaense Peris-Felipo, 2016

Peris-Felipo, Francisco Javier & Belokobylskij, Sergey A., 2016, First record of the genus Dinotrema Foerster, 1862 (Hymenoptera, Braconidae, Alysiinae) from the Neotropical region, with description of four new species and a key to the New World taxa, European Journal of Taxonomy 179, pp. 1-23 : 15-18

Dinotrema teutoniaense Peris-Felipo sp. nov.

urn:lsid:zoobank.org:act:EF9D55A8-0FE6-4870-9424-D6C09A3F3E66

Figs 8–9

Etymology

Named after Teutônia (“Nova Teutonia”), the type locality of new species.

Type material

Holotype

BRAZIL: ♀, Nova Teutonia, 27º11’B 52º23’L, 24 Sep. 1935 (F. Plaumann leg.) ( BNHM).

Paratypes

BRAZIL: 3 ♀♀, 2 ³³, same locality as holotype, but 2 Sep. 1935, 11 Aug. 1937 [B.M. 1937–656], 1 Jun. 1938 [B.M. 1938–458], 24 Apr. 1938, 6 May 1938 [B.M. 1938–682] ( BNHM); 1 ♀, same locality as holotype, but “[B.M. 1957–341]” ( ZISP).

Description

Female

HEAD. In dorsal view, 1.8 times as wide as long, 1.4 times as wide as mesoscutum, smooth, with temple rounded behind eyes. Eye in lateral view 1.3 times higher than wide and 1.5 times as wide as temple medially. POL 1.5 times as long as OD; OOL 5.2 times OD. Face 1.2 times as wide as high, completely covered by numerous setae; inner margins of eyes subparallel. Clypeus 3.1 times as wide as high, slightly curved ventrally. Paraclypeal fovea long, surpassing middle of distance between clypeus and eye but remains distinctly removed from eye. Mandible 3-dentate, in lateral view only two teeth visible, slightly widened towards apex, 1.3 times as long as its maximum width. Upper tooth not visible in lateral view, very small, shorter than lower and middle teeth; middle tooth small, slightly longer than upper tooth, wide basally and pointed apically; lower tooth short, wide, rounded. Antennae 18-segmented, 1.3 times longer than body. Scape 2.5 times as long as pedicel. First flagellar segment 5.5 times as long as its apical width, 1.1 times as long as second segment. Second flagellar segment 4.0 times as long as its maximum width. Third to sixth segments 3.6 times, seventh to eleventh segments 3.2 times; 12 th and 13 th segments 2.6 times; 14 th and 15 th segments 3.2 times, and 16 th (apical) segment 3.5 times as long as width.

MESOSOMA. In lateral view 1.3 times longer than high. Mesoscutum (dorsal view) 0.8 times longer than its maximum width. Notauli mainly absent on smooth horizontal surface of mesoscutum. Mesoscutal pit distinct and rounded. Prescutellar depression smooth, without lateral carinae. Precoxal sulcus present, crenulate, not reaching anterior and posterior margins of mesopleuron. Posterior mesopleural furrow smooth. Propodeum smooth, with complete and distinct median longitudinal carina, with short transverse carinae not reaching sides of propodeum. Propodeal spiracles relatively small.

WINGS. Length of fore wing 2.4 times its maximum width. Radial (marginal) cell ending at apex of wing, 3.5 times as long as its maximum width. Vein cuqu1 (2-SR) present and sclerotized. Vein r2 (3-SR) 3.6 times as long as vein cuqu1 (2-SR); vein r3 (SR1) 2.6 times as long as vein r2 (3-SR). Nervulus (cu-a) distinctly postfurcal. Brachial (subdiscal) cell closed distally, 2.5 times as long as its maximum width. Hind wing 5.9 times as long as its maximum width.

LEGS. Hind femur 5.0 times longer than its maximum width. Hind tibia slightly widened to apex, 10.3 times longer than its maximum subapical width, 1.3 times as long as hind tarsus. First segment of hind tarsus 2.4 times as long as second segment.

METASOMA. First tergite slightly widened towards apex, 2.8 times as long as its apical width, striate. Ovipositor 1.7 times as long as first tergite, 0.6 times as long as metasoma, about as long as hind femur.

COLOUR. Body and pterostigma brown. Antenna, side of pronotum and legs yellowish brown. Five apical flagellar segments paler than middle segments, yellowish brown. Wings hyaline.

LENGTH. Body 1.3 mm; fore wing 1.5 mm; hind wing 1.2 mm. VARIATION. Body length 1.3–1.4 mm; fore wing length 1.5–1.6 mm; hind wing length 1.2–1.3 mm. Antenna 18–19-segmented.

Male

Body length 1.4 mm; fore wing length 1.5 mm; hind wing length 1.2 mm. Antenna 19-segmented.

Comparative diagnosis

This new species is similar to D. angusticorne ( Fischer, 1969a) and D. disstrae ( Fischer, 1969a) . Dinotrema teutoniaense sp. nov. differs from these species in having the mandible 2.0 times as long as its maximum width (1.3 times in D. angusticorne and 1.7 times in D. disstrae ), the first flagellar segment 5.5 times as long as its maximum width (3.8 times in D. angusticorne and 2.2 times in D. disstrae ), hind femur 5.0 times as long as its maximum width (4.3 times in D. angusticorne and D. disstrae ), and the first metasomal tergite 2.8 times as long as its apical width (2.0 times in D. angusticorne and 1.8 times in D. disstrae ).

According to the key by Peris-Felipo et al. (2014b), this new species is similar to D. occipitale (Fischer, 1973) and D. paramicum Munk & Peris–Felipo, 2013 . Dinotrema teutoniaense sp. nov. differs from D. occipitale in having the face 1.2 times as wide as high (1.5 times in D. occipitale ), mandible 1.3 times as long as its maximum width (1.5 times in D. occipitale ), first flagellar segment 5.5 times as long as its maximum width (3.25 times in D. occipitale ), and hind femur 5.0 times as long as its maximum width (4.0 times in D. occipitale ). On the other hand, the new species differs from D. paramicum in having the face 1.2 times as wide as high (1.6 times in D. paramicum ), first flagellar segment 5.5 times as long as its maximum width (3.0 times in D. paramicum ), and hind femur 5.0 times as long as its maximum width (4.15–4.20 times in D. paramicum ).

Figures

Fig. 8. Dinotrema teutoniaense Peris-Felipo sp. nov. (♀). A. Habitus, lateral view. B. Head, lateral view. C. Face and mandible, frontal view. D. Antenna. E. Head, dorsal view. F. Mesosoma, lateral view.

Fig. 9. Dinotrema teutoniaense Peris-Felipo sp. nov. (♀). A. Mesonotum, dorsal view. B. Propodeum, dorsal view. C. First metasomal tergite. D. Metasoma, hind leg and ovipositor, lateral view. E. Fore and hind wings.