Corresponding author: Zhong-Qi Yang (
Academic editor: Michael Ohl
A new species of
Li T, Yang Z-Q, Sun S-P, Wang R (2017) A new species of
The species of
The life history and biological characteristics of
For the morphological terminology used in this paper, see
The holotype, most paratypes of the new species and hosts are deposited in the Insect Museum of the General Station of Forest Pest Management (
Body color usually metallic blue-green to blue-black (only few species black and with or without metallic reflections). Head rounded, subtriangular or subrectangular, wider than high; antenna with 2 annelli, 3–4 funicle segments and 2–3 club segments; mandible subquadrate, usually with a strongly developed acute upper tooth and 4 rounded lower teeth. Pronotum campanulate to subrectangular; scutellum with 2 or 3 pairs of bristles; propodeum with strongly developed median carina, anterior 1/3 with tongue-like projection or without projection, plicae and costulae present or absent, sometimes with additional costulae either complete or incomplete; propodeal spiracle rounded to subovate. Fore wing usually hyaline, veins developed. Metasoma elongate-ovate to narrow and long (
1 | Costulae of propodeum absent (Fig. |
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– | Costulae of propodeum present and reaching median carina |
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2 | Axilla reticulate; fore wing length 2.3 × width, costal cell length 8.0 × width; hind leg (female) black except coxa with blue-green with purple metallic tinge |
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– | Axilla weakly sculptured; fore wing (Fig. |
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3 | Scape white; posterior margin of mesoscutum with three pairs of stout bristles; propodeal disc laterally reticulate; fore wing length 2.1 × width, costal cell length 3.6 × width; hind leg white, coxa smooth dorsally |
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– | Scape blue-green with purple metallic tinge; posterior margin of mesoscutum with one pair of stout bristles (Fig. |
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4 | Costula meeting anterior margin of propodeum or anterior part of median carina |
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– | Costula meeting median portion of median carina |
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5 | Costula reaching anterior margin of propodeum or anterior part of median carina; mesoscutum with micro-reticulate sculpture |
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– | Costula reaching anterior 2/5 of median carina; mesoscutum with reticulate |
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6 | Gaster of female 1.4–1.8 times as long as broad, usually shorter than mesosoma |
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– | Gaster of female twice as long as broad, longer than mesosoma |
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7 | Hind tarsus of female with all segments from pale testaceous to fuscous, never white; inner face of mid-coxa with some setae |
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– | Hind tarsus of female with one to three basal segments whitish; inner face of mid-coxa without setae |
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8 | Legs of female with femora and tibiae predominantly pale yellow, only slightly fuscous; in male the dark coloration is more extensive; mesosoma green; wings hyaline |
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– | Legs of female reddish-testaceous, blackish, or often a combination of the two colors, never pale yellow; mesosoma bronze-green or blue-green to almost black; fore wing of female usually with yellowish or greyish tinge |
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The specific name is derived from the host’s generic name
Holotype, ♀, (
Body (Fig.
The variation of specimens is mainly focus on the body color, size, and costulae absent or present. The body color green with metallic tinge (26♀♀ 13♂♂) to blue-green with purple metallic tinge (76♀♀ 47♂♂); tarsi 1–3 of fore leg yellowish (72♀♀, others pale brown); apical portion of mid tibia brown (68♀♀); costula weak (79♀♀, Fig.
Parasitoid eggs were deposited on the surface of the host’s cuticle (Fig.
The prepupa (Fig.
Northwestern China (Qinghai Province)
The new species is similar to
The preimaginal stages of
The authors grateful acknowledge Dr. Hou-Hun Li (Nankai University, Tianjin, China) for identifying the parasitoid’s host species,