Chileana tricarinata Janšta & Křížková, 2013

Janšta, Petr, Křížková, Barbora, Vilímová, Jitka & Rasplus, Jean-Yves, 2013, Description of a new genus, Chileana (Hymenoptera: Chalcidoidea: Torymidae), with four new species, Zootaxa 3745 (1), pp. 49-63 : 58-60

Chileana tricarinata Janšta & Křížková , sp. nov.

Figs 19–25

Material examined. Holotype female labeled CHILE, Malleco, Cabreria, 1100m, Cord. Nahuelb., Jan. 1977, L. Peña. Paratype (1 female). CHILE, Alto de Caicupil, Cord. Nahuelbuta, 12–1300m, 1.I.1954, L. E. Peña. Type material deposited in CNC.

Etymology. The species name refers to the three carinae on the propodeum; tricarinata (Latinized, adjective) = genitive plural, feminine.

Diagnosis and identification: Scrobes smooth and shiny. Antennae low on head, nearly reaching imaginary line between ventral margins of eyes; scape reaching anterior ocellus; funicle with all segments elongate, longer than broad. Frenum finely alutaceous. Metapleuron completely covered with setae. Propodeum with three carinae, one medial and two submedian; area between spiracle and submedian carina with some irregular wrinkles. Fore wing slightly infumate, with speculum. Hind femur with one distinct long tooth in apical quarter. Ovipositor 0.6– 0.62× as long as the body.

Description: FEMALE. Holotype. Body length excluding ovipositor 4.6 mm; length of ovipositor 2.8 mm. Head, excluding vertex, scape, fore and mid coxae, part of hind coxae, femora, lateral panels of pronotum, tegulae, proximal part of lateral lobe of mesoscutum, mesepisternum, upper mesepimeron, ventral part of mesosoma and propodeum mostly blue-green. Vertex, pedicel, dorsal part of mesosoma, lower mesepimeron, metapleuron, upper part of hind coxae and metasoma with coppery reflections ( Fig. 19 ). Flagellum, tibiae medially, last tarsal segments and ovipositor brown. Tarsal segments (except last ones), tibiae except medially, and femora distally dark yellow. Fore wing slightly infumate, hind wing hyaline, wing venation and setae brown.

Head. 1.27× as broad as high; 2.07× as broad as long; as broad as mesonotum at its widest part in dorsal view; HTE:LTE 1.39; HTE:msp 1.89. Temples relatively long, 0.42× LTE. Head alutaceous except scrobes smooth and shiny, and with thin, short, pale setae. Clypeus with anterior margin slightly protruding and straight, ventral part of clypeus smooth ( Figs 20, 21 ). Mouth 1.79× msp. Antenna with scape 4.17× as long as broad at its widest part, reaching ventral margin of anterior ocellus; toruli inserted on line connecting ventral margins of eyes; relative measurements of segments = 50:14:7:18:20:22:19:17:16:13:27; pedicel 1.56×, anellus 0.78×, F1 1.64×, F2 1.82×, F3 2×, F4 1.73×, F5 1.55 ×, F6 1.45×, F7 1.18× and clava 2.25× as long as broad; F1 with one and F2–F7 with two or three rows of MPS. POL 1.71× OOL, OOL 1.56× OD.

Mesosoma. Mesosoma 1.73× as long as broad. Pronotum in dorsal view 1.8× as broad as long, mesoscutum 1.28× as broad as long. Pronotum, mesonotum and scutellum except for frenal area coarsely alutaceous, and with thin, short, erect pale setae ( Fig. 24 ). Scutellum 1.3× as broad as long with well delimited frenal area; frenal area very finely alutaceous, nearly smooth, and 0.36× as long as entire scutellum. Propodeum with one complete median carina and two submedian carinae that diverge posteriorly to form inverted V; area between spiracle and submedian carina with some irregular wrinkles ( Fig. 25 ). Upper mesepimeron completely smooth and shiny. Transepimeral sulcus complete, linear and delimit upper and lower mesepimeron. Metapleuron alutaceous and sparsely but completely covered with pale long setae. Hind leg with coxa relatively long, 2.25× as long as broad and 0.69× as long as femur; disc of hind coxa reticulate with rows of erect setae dorsally and ventrally; femur 4.06× as long as broad with single long tooth in distal quarter; tibia 7.78× as long as broad; longer spur of hind tibia 1.8× as long as shorter one and 0.36× as long as basitarsus; basitarsus 0.36× as long as tibia. Fore wing 2.75× as long as wide, transparent, but slightly infumate, with dense brown setae except basal cell and costal cell with only a few setae dorsally; speculum developed; marginal vein 3× as long as postmarginal vein and 5.63× as long as stigmal vein; stigmal vein 2× as long as broad at its broadest part; stigmal uncus long, as long as breadth of stigma and reaching mid-length of stigmal vein; venation pale brown ( Fig. 22 ).

Metasoma. About 1.19× as long as mesosoma; in lateral view oval, 1.66× as long as high; in dorsal view 0.76× as wide as mesosoma. Petiole short, dorsally transverse. Gaster smooth or at most with very shallow alutaceous sculpture; lateral panels of gastral segments with several long white setae; Gt1 deeply emarginate in the middle, Gt2 only slightly emarginate; hypopygium reaching to 0.93× of length of gaster. Ovipositor 1.33× as long as metasoma, ovipositor index 2.14.

MALE. Unknown.

Variation. The single paratype female coloration is nearly the same as the holotype except the scape is dark and coppery and the metasoma is brown laterally with some blue reflections proximally on each tergite. The length of the body is 4.2 mm and the length of the ovipositor is 2.6 mm (OI = 2.19). The paratype also varies in the following measurements: scape 4.78×, pedicel 1.67×, anellus 0.63×, F1 1.3×, F2 1.5×, F3 1.5×, F4 1.4×, F5 1.4×, F6 1.3×, F7 1.3× and clava 2.36× as long as broad; POL 1.91× OOL, OOL 1.29× OD; hind coxa longer, 2.79× as long as broad; hind femur 4.7× as long as broad; hind tibiae 8.14× as long as broad; longer spur of hind tibia 2× as long as shorter one.

Biology. Unknown.

Figures

FIGURES 19 – 23. Chileana tricarinata, female: 19, habitus, lateral view; 20, head, frontal view; 21, head, frontal view; 22, fore wing; 23, part of pedicel, anellus and F 1 – F 4, lateral view.

FIGURES 24 – 26. 24 – 25, Chileana tricarinata, female: 24, head and mesosoma, dorsal view; 25, scutellum, propodeum and base of metasoma, dorsal view. 26, Chileana penai, female: habitus, lateral view.