Dinotrema (Synaldis) verae sp. nov.

Figs 95–105

Type material.

Holotype: Chile • ♀ (MNNC); Osorno, Parque Nacional Puyehue, Antillanca; 40 ° 44 ' 06 " S, 72 ° 18 ' 47 " W; alt. 528 m; 14 Jan. – 3 Feb. 2017; D. Amorim and V. Silva leg.; flight intercept . Paratypes: Chile • 1 ♂ (MNNC); same data as for holotype, except 40 ° 44 ' S, 72 ° 19 ' W; alt. 440 m; pan trap • 1 ♀ (DCBU 387214); same data as for holotype, except 40 ° 44 ' S, 72 ° 19 ' W; alt. 440 m; sweeping .

Diagnosis.

This species differs from other New World species of Synaldis by the combination of the following characteristics: in lateral view, eye as wide as or slightly wider than temple (Fig. 96); paraclypeal fovea middle size (Fig. 97); mandible with three relatively large teeth, diagonal carina present, mandibular apex wider than base (Fig. 98); F 1 2.7–3.1 × as long as wide (Fig. 100); mesoscutal pit present, conspicuous (Fig. 99); propodeum with areola, median longitudinal carina incomplete to complete, transverse carinae complete (Fig. 103); fore wing vein cu-a postfurcal, 1 - CU 1 shorter than cu-a (Fig. 101); hind tibia 8.6–8.8 × as long as wide (Fig. 105); T 1 rugose – foveolate (Fig. 104).

Dinotrema (S.) verae sp. nov. is related to D. (S.) brunneum sp. nov. and D. (S.) chilense sp. nov. Their differences are given in the diagnosis of D. (S.) brunneum sp. nov. and D. (S.) chilense sp. nov.

Description.

♀. Length. Body: 2.5–2.7 mm. Fore wing: 2.5–2.8 mm. Hind wing: 2.1 mm.

Head: in dorsal view, 1.6–1.8 × as wide as long, 1.3 × as wide as mesosoma, slightly wider at temples than eyes. Frons smooth or with weak mid groove. POL 1.2–1.3 × as OD, OOL 2.3–2.5 × as OD. In lateral view (Fig. 96), eye 1.4–1.5 × as high as wide, 1.0–1.1 × as wide as temple. Face 1.45–1.60 × as wide as high (Fig. 97), 1.9 × as wide as clypeus, smooth. Clypeus 1.9 × as wide as high, slightly concave ventrally. Malar space 0.6 × as clypeus height. Paraclypeal fovea middle size. Mandible 1.2–1.3 × as long as wide (Fig. 98), diagonal carina present. Mandibular apex 1.2–1.4 × wide as base. Upper tooth rounded. Middle tooth acute, longer than other teeth. Lower tooth rounded, as long as upper tooth. Upper tooth ca as wide as lower, wider than middle tooth. Antenna with 19–20 segments (Fig. 100), 0.8–0.9 × as long as body. Scape 2.0 × as long as pedicel. F 1 2.7–2.8 × as long as wide, 1.2 × as long as F 2. F 2 1.8–2.1 × as long as wide. F 3 1.7–1.8 × as long as wide. AF 1.9 × as long as wide. Maxillary palp 1.1 × as long as head height.

Mesosoma: 1.3 × as long as high (Fig. 102), 2.0–2.2 × as long as wide. Mesoscutum as long as wide, notauli absent on horizontal surface of mesoscutum (Fig. 99). Mesoscutal pit present, oval – elongate, occupying 0.2 × of mesoscutal length. Prescutellar depression 2.3–2.4 × as long as wide, with median carina complete, smooth laterally. Side of pronotum crenulate. Precoxal sulcus crenulate medially, not reaching anterior and / or posterior margins of mesopleuron (Fig. 102). Posterior mesopleural furrow smooth. Propodeum rugulose to rugose (Fig. 103), with areola 0.8–0.9 × as high as wide; median longitudinal carina incomplete (not extending inside areola) to complete; transverse carinae complete. Propodeum with weak protuberance in lateral view. Propodeal spiracle small to middle (Fig. 102), 0.3–0.4 × distance from spiracle to base of propodeum.

Wings: fore wing 2.8 × as long as wide, vein 1 - SR present, (r + 3 - SR) 5.1 × as long as r-m, SR 1 2.1 × as long as (r + 3 - SR); cu-a postfurcal, 1 - CU 1 0.55–0.70 × as long as cu-a. Marginal cell 4.5 × as long as wide, submarginal cell 2.0–2.2 × as long as wide, first subdiscal cell 3.1–3.3 × as long as wide (Figs 95, 101). Hind wing 5.2 × as long as wide, vein 1 - M 0.5 × as long as M + CU, 1.2 × as long as 1 r-m; m-cu absent.

Legs: Hind femur 4.2–4.3 × as long as wide. Hind tibia 8.6–8.8 × as long as wide, 1.2 × as long as hind tarsus. First segment of hind tarsus 2.0 × as long as second segment (Fig. 105).

Metasoma: 1.5 × as long, and as wide as mesosoma (Fig. 95). T 1 rugose – foveolate (Fig. 104), 1.9–2.0 × as long as wide, apex 1.5 × as wide as base. Ovipositor 0.4 × as long as metasoma, 1.45 × as long as T 1, 0.9–1.0 × as long as hind femur. Ovipositor sheath with some delicate setae (except on 1 / 3 apical almost glabrous), 0.3–0.4 × as long as metasoma, 1.10–1.45 × as long as T 1 (Figs 95, 105).

Color: Head dorsally dark brown to brown. Face and clypeus brown to yellowish. Mandibles, antennae, and legs yellow. Mesosoma entirely yellow or parascutellar area and metanotum brown. Metasoma brown to light brown, except T 1 brown to yellow and ovipositor yellow. Wings hyaline, veins brown.

Male. Body length 2.8 mm. Head 1.45 × as wide as mesosoma. Face 1.8 × as wide as clypeus. Clypeus 2.0 × as wide as high. F 1 3.1 × as long as wide. F 3 2.05 × as long as wide. Prescutellar depression with lateral carinae complete, weak. Fore wing vein (r + 3 - SR) 4.8 × as long as r-m, SR 1 1.9 × as long as (r + 3 - SR), marginal cell 4.2 × as long as wide, first subdiscal cell 2.9 × as long as wide. Hind tibia 8.9 × as long as wide. Metasoma 2.0 × as long as mesosoma. Head brown, except mandibles yellow; mesosoma and metasoma light brown.

Etymology.

The species name verae is a genitive noun, named after Vera Cristina Silva, one of the collectors of the type material for this species.

Distribution.

Chile.