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First Record of the Genus Acropimpla Townes, 1960 (Hymenoptera: Ichneumonidae: Pimplinae) from Thailand, with Descriptions of Three New Species

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First Record of the Genus Acropimpla Townes, 1960 (Hymenoptera: Ichneumonidae: Pimplinae) from Thailand, with Descriptions of Three New Species Zootaxa 4013 (4): 556–570 ISSN 1175-5326 (print edition) www.mapress.com/zootaxa/ Article ZOOTAXA Copyright © 2015 Magnolia Press ISSN 1175-5334 (online edition) http://dx.doi.org/10.11646/zootaxa.4013.4.6 http://zoobank.org/urn:lsid:zoobank.org:pub:F8FFABC5-229D-4CF1-AA66-2189DA15D8CC First record of the genus Acropimpla Townes, 1960 (Hymenoptera: Ichneumonidae: Pimplinae) from Thailand, with descriptions of three new species OLEKSANDR VARGA1 & ALEXEY RESHCHIKOV2 1Schmalhausen Institute of Zoology, National Academy of Sciences, Ukraine. E-mail:[email protected] 2Department of Zoology, Swedish Museum of Natural History, Box 50007, 104 05 Stockholm, Sweden. E-mail: [email protected] Abstract Nine species of Acropimpla Townes, 1960 are recorded from Thailand with three species described as new: A. leoni sp.n., A. natae sp.n., A. patellalutea sp.n. Six species, A. aspera Gupta & Tikar, 1976, A. hapaliae (Rao, 1953), A. leucostoma (Cameron, 1907), A. nakula Gupta & Tikar, 1976, A. taishunensis Liu, He & Chen, 2010, and A. uchidai (Cushman, 1933) are recorded from Thailand for the first time. A key to the females of Acropimpla species in South East Asia is also pro- vided. Key words: Ephialtini, taxonomy, new records Introduction Acropimpla Townes, 1960 is a moderately large genus of the subfamily Pimplinae, with 41 known species, 34 of which occur in the Oriental region (Yu et al. 2012). Recent investigations in this region have revealed a high percentage of undescribed species, indicating that the Oriental fauna is still relatively poorly known (Liu et al. 2010; Pham et al. 2011). Based on recent collections of Ichneumonidae from Thailand, we provide the first record of Acropimpla species for this country, with descriptions of three new species and records of six further species. Material and methods This work is based on material collected by the TIGER project, a collaborative effort between staff at the Queen Sirikit Botanic Garden (QSBG), the Thai Forestry Group, the Hymenoptera Institute of the University of Kentucky, and the Natural History Museum of Los Angeles County. Morphological terminology follows that of Gauld (1991). Images were taken at the Alexandru Ioan Cuza University of Iasi (UAIC) (Romania) using a Leica stereomicroscope 205A with DFC 500 camera, combined with Zerene® software and with a Canon Digital Camera 5D, combined with Zerene® software at the Swedish Museum of Natural History (NHRS). Key to the females of Acropimpla species found in South East Asia 1. Propodeum with or without median longitudinal carina (present at most on anterior 0.2). Propodeum dorsally weakly punctate or almost impunctate (Figs 5d, 7d, 11c) . 2 -. Propodeum with median longitudinal carina present and distinct (e.g. 9d) . 5 2. Face black with two small yellow marks below the antennal sockets. Metasomal tergites black, each with two yellow apicolat- eral marks. Ovipositor about 2.8 × the length of the hind tibia. A. lampei Pham, Broad & Wagele 556 Accepted by J. Jennings: 13 Aug 2015; published: 10 Sept. 2015 -. Face yellow or black centrally . 3 3. Mesosoma without red marks. Face with median black mark, clypeus yellow (Fig. 5b). Metasoma banded with yellow and black (Fig. 5a). Ovipositor about 2.3 × the length of the hind tibia . A. leucostoma (Cameron) -. Mesosoma marked with red . 4 4. Face with a wide black mark connecting with clypeus which is black basally (Fig. 11a). Metasoma reddish with black apical bands (Fig. 11b). Ovipositor about 1.8 × the length of the hind tibia . A. uchidai (Cushman) -. Face with a narrow black mark, if this mark connects to the clypeus then the clypeus is yellow basally (Fig. 7a). Metasoma banded with black and yellow (Figs 6b, 7b). Ovipositor between 2.2 and 2.6 × the length of the hind tibia . .A. natae sp.n. 5. Propodeum finely punctate dorsally and usually almost impunctate on its anterior 0.2 (Fig. 4d, 8d, 10d) . 6 -. Propodeum coarsely and densely punctate dorsally (Figs 2d, 3d, 9d) . 8 6. Propodeum with dorsal longitudinal carinae short and not apically diverging (Fig. 4d). Face yellow with abundant black color- ation (Fig. 4b). Metasoma red with apicolateral black marks on tergites 2–3 (Fig. 4f). Ovipositor about 1.65 × the length of the hind tibia . A. leoni sp.n. -. Propodeum with dorsal longitudinal carinae long and apically diverging (Figs 8d, 10d) . 7 7. Face with a wide black mark connecting to yellow clypeus (Fig. 10b). Mesosoma without red marks (Fig. 10a). Ovipositor about two × the length of the hind tibia . A. taishunensis Liu, He & Chen -. Face black (Fig. 8b). Mesosoma with red marks (Fig. 8a). Ovipositor about 4.3 × the length of the hind tibia . A. nakula Gupta & Tikar 8. Ovipositor without a distinct constriction subapically. Face with a small triangular black mark connecting to black clypeus. Metasoma reddish with narrow black bands basally on the first tergite, and apically on second and third tergites. Ovipositor about 3.1 × the length of the hind tibia . A. mucronis Pham, Broad & Wagele -. Ovipositor with a distinct subapical constriction (Figs 2c, 3c, 9e) . 9 9. Mesosoma marked with red . 10 -. Mesosoma without red marks . 11 10. Face and clypeus yellow. Ovipositor about 2.9 × the length of the hind tibia . .A. phongdienensis Pham, Broad & Wagele -. Face and clypeus with black or brown marks (Fig. 9b). Ovipositor about 1.95 × the length of the hind tibia. A. patellalutea sp.n. 11. Face yellow with the clypeus black (Fig. 3b). Metasoma banded with yellow and black (Fig. 3a). Ovipositor about 2.8 × the length of the hind tibia . .A. hapaliae (Rao) -. Face yellow with a small central black mark (Fig. 2b). Metasoma red with tergites 1–3 marked with black (Fig. 2a). Ovipositor about 2.1 × the length of the hind tibia . A. aspera Gupta & Tikar Acropimpla aspera Gupta & Tikar, 1976 (Fig. 2) Material examined. Female, THAILAND, Phetchabun, Thung Salaeng Luang National Park, Gang Wang Nam Yen, 16°36.587'N 100°53.395'E, 753 m, 17–24.v.2007, Malaise trap, leg. Pongpitak Pranee & Sathit, T2080, QSBG. Diagnosis. This species is characterized by the black with yellow marks on head and mesosoma (Fig. 2a), the yellow face with a black triangular central spot (Fig. 2b), the punctate epicnemium, the propodeum which is weakly convex, coarsely and densely punctate, with dorsal longitudinal carinae on its anterior 0.45 (Fig. 2d), the closely punctate and almost entirely red metasoma, and the ovipositor which is around 2.1 × the length of the hind tibia, with a distinct constriction near its tip (Fig. 2c). According to Gupta & Tikar (1976) this species has the first metasomal tergite centrally black and the second tergite with a black basal band. However, a recently examined Thai female specimen differs in having the first metasomal tergite red, with only a central brownish spot and tergites 2–3 with small apicolateral black marks. Distribution. China (Liu, He & Chen, 2010), India, Myanmar (Gupta & Tikar, 1976), Thailand: Thung Salaeng Luang National Park (Fig. 1). Acropimpla hapaliae (Rao, 1953) (Fig. 3) Material examined. Female, THAILAND, Loei, Phu Kradueng National Park, Mixed deciduous forest/S Na Noy office, 16°49.01'N 101°47.62'E, 276 m, 28.v–3.vi.2008, Malaise trap, leg. Thonghuay Phatai, T 5016, QSBG; Chiang Mai, Doi Inthanon National Park, Vachiratharn Falls, 18°32.311'N 98°36.048'E, 700 m, 2–9.viii.2006, Malaise trap, leg. Y. Areeluck, T122, QSBG. FIRST RECORD OF THE GENUS ACROPIMPLA Zootaxa 4013 (4) © 2015 Magnolia Press · 557 FIGURE 1. Thai Acropimpla distribution map. 558 · Zootaxa 4013 (4) © 2015 Magnolia Press VARGA & RESHCHIKOV FIGURE 2. Acropimpla aspera, female: a) lateral view of habitus; b) frontal view of head; c) lateral view of ovipositor tip; d) dorsal view of propodeum. Diagnosis. This species is characterized by a yellow face, and black clypeus (Fig. 3b), black and yellow marks on the head and mesosoma (Fig. 3a), the weakly convex, coarsely densely punctate propodeum which has weak dorsal longitudinal carinae on its anterior 0.35 (Fig. 3d), the closely punctate metasoma which is banded with black and yellow, and the ovipositor which is about 2.8 × the length of the hind tibia, and with a weak constriction near its tip (Fig. 3c). Distribution. China (Liu, He & Chen, 2010), India, Myanmar (Gupta & Tikar, 1976), Vietnam (Pham, Broad & Wägele, 2011), Thailand: Phu Kradueng and Doi Inthanon National Parks (Fig. 1). Acropimpla leoni Varga & Reshchikov, sp.n. (Fig. 4) Material examined. Holotype: female, THAILAND, Chiang Mai, Doi Phahompok National Park, Mae Fang Hotspring, 19°57.961'N 99°9.355'E, 569 m, 21–28.viii.2007, Malaise trap, leg. P.Wongchai, T6146, QSBG. Other material. Female, THAILAND, Mae Hong Son, Namtok Mae Surin National Park, Nature trail, 19°20.616'N 97°59.3'E, 334 m, 15–22.vii.2007, Malaise trap, leg. Jittrakorn Kaewmanee, T5844, QSBG (this female not designated as a paratype due to the absence of an ovipositor). Diagnosis. This species is similar to A. aspera and A. phongdienensis in having a distinct constriction near the ovipositor tip (Fig. 4e). The ground colour is similar to A. aspera and A. mucronis, but the face and scape has more abundant black coloration (Fig. 4b). Acropimpla leoni also has shorter antenna, with 20 flagellomeres (23 in A. FIRST RECORD OF THE GENUS ACROPIMPLA Zootaxa 4013 (4) © 2015 Magnolia Press · 559 mucronis and 25 in A. aspera), an impunctate epicnemium (punctate in A. aspera), densely punctate propodeum (Fig. 4d), and a shorter ovipositor, which is about 1.65 times × the length of the hind tibia (3.1 × the length of the hind tibia in A. mucronis and 2.1 × the length of the hind tibia in A. aspera). FIGURE 3. Acropimpla hapaliae, female: a) lateral view of habitus; b) frontal view of head; c) lateral view of ovipositor tip; d) dorsal view of propodeum.
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