Epitranus erythrogaster Cameron, 1888

Narendran, T. C. & van Achterberg, Cornelis, 2016, Revision of the family Chalcididae (Hymenoptera, Chalcidoidea) from Vietnam, with the description of 13 new species, ZooKeys 576, pp. 1-202 : 82-84

Taxon classification Animalia Hymenoptera Chalcididae

Epitranus erythrogaster Cameron, 1888 Figs 100-102, 103

Epitranus erythrogaster Cameron, 1888: 119 (♀, lectotype selected by Bouček (1982), Japan (Nagasaki) (BMNH) (examined)).

Anacryptus sculpturatus Crawford, 1910: 129 (♀, lectotype, Philippines (Manila) (USNM) (lectotype selection and synonymized with Epitranus erythrogaster Cameron by Bouček 1982)).

Anacryptus kankauensis Masi, 1933: 12-14 (♀, lectotype, Taiwan (Kankau) (DEI) (lectotype selection and synonymized with Epitranus erythrogaster Cameron by Bouček 1982)).

Arretoceroides ceylonensis Mani, 1936: 128-129 (♂, holotype, Sri Lanka (Peradeniya) (lost?) (synonymized with Epitranus erythrogaster Cameron by Bouček (1982) by implication)).

Anacryptus raoi Mani & Kurian, 1953: 4-5 ( “♂”, holotype, India (Uttar Pradesh, Agra) (lost?) (synonymized with Epitranus erythrogaster Cameron by Bouček (1982) by implication)).

Chalcitelloides devadatta W. Fernando, 1957: 212-213 (syntypes, Sri Lanka (Kalawewa) (lost?) (synonymized with Epitranus erythrogaster Cameron by Bouček (1982) by implication)).

Chalcitelloides ajatasattu W. Fernando. 1957: 241-242 (syntypes, Sri Lanka (Talawakele) (lost?) (synonymized with Epitranus erythrogaster Cameron by Bouček (1982) by implication)).

Pararretoceroides austini W. Fernando, 1957: 241-242 (syntypes, Sri Lanka (Talawakele) (lost?) (synonymized with Epitranus erythrogaster Cameron by Bouček (1982) by implication)).

Arretcera ambadevia Mani & Dubey (in Mani, Dubey, Kaul & Saraswat), 1973: 13-16 (♂, holotype, India (Borivile National Park nr. Mubai, Thana Hill (USNM) (synonymized with Epitranus erythrogaster Cameron by Bouček (1982)).

Arretocera nilamburense Mani & Dubey (in Mani, Dubey, Kaul & Saraswat), 1973: 16-17 (♀, holotype, India (Kerala, Nilambur) (USNM) (synonymized with Epitranus erythrogaster Cameron by Bouček (1982)).

Arretocera pallava Mani & Dubey (in Mani, Dubey, Kaul & Sarawat), 1973: 19-21 (♂, holotype, India (Tamil Nadu) (USNM) (synonymized with Epitranus erythrogaster Cameron by Bouček (1982)).

Arretocera tanjorensis Mani & Dubey (in Mani, Dubey, Kaul & Saraswat), 1973: 25-28 (♀, holotype, India (Andhra Pradesh) (USNM) (synonymized with Epitranus erythrogaster Cameron by Bouček (1982)).

Chalcitella nilamburensis Mani & Dubey (in Mani, Dubey, Kaul & Saraswat), 1974: 26-27 ( “♂” (= ♀), holotype, India (Nilambur) (USNM) (synonymized with Epitranus erythrogaster Cameron by Bouček (1982)).

Arretocera malabarensis Mani & Dubey (in Mani, Dubey, Kaul & Saraswat), 1974: 28-29 ( “♂” (= ♀), holotype, India (Kerala) (USNM) (synonymized with Epitranus erythrogaster Cameron by Bouček (1982)).

Epitranus acuminatus Husain & Agarwal, 1982c: 425 (♀, holotype, India (Aligarh) (ZDAMU) (examined) (synonymized with Epitranus erythrogaster Cameron by Narendran (1989)).

Material.

3 ♀ (RMNH, IEBR), "S. Vietnam: Dóng Nai, Cát Tiên N. P., Ficus trail, c. 100 m, 1-9.x.2005, Mal[aise] traps 1-8, C. v. Achterberg & R. de Vries, RMNH’05”; 2 ♂ (RMNH, IEBR), id., but 10-29.iv.2007; 1 ♀ (RMNH), id., but 9-26.iv.2007, Crocodile trail; 1 ♂ (RMNH), "C. Vietnam: Ha Tinh, Vu Quang N. P., 111 m, 18°19'40"N 105°26'29"E, 23.ix.-5.x.2009, Mal[aise] trap 23, R. de Vries, RMNH’09”; 4 ♀ (RMNH, IEBR), "S. Vietnam: Dak Lak, Chu Yang Sin N. P., n[ea]r dam, 500 m, Mal[aise] traps, 3-9.vi.2007, C. v. Achterberg & R. de Vries, RMNH’07”; 1 ♀ (RMNH), "N. Vietnam: Ninh Binh, Cuc Phuong N. P., n[ea]r entrance, c. 225 m, 1-15.v.2000, Malaise trap 2, Mai Phu Quy, RMNH’00”; 1 ♀ (IEBR), id., but near centre, 1.xi.-20.xii.2000; 3 ♂ (RMNH, IEBR) "S. Vietnam: Ninh Thuân, Núi Chúa N. P., northeast part, 90-150 m, 23-30.v.2007, Mal[aise] traps, C. v. Achterberg & R. de Vries, RMNH’07”; 151 ♀ + 120 ♂ (DZCU), "India, Kerala, T.C. Narendran & Party, 1984 –1989”; 2 ♀ (DZCU), "India, Kerala, Calicut University Campus, 1979, Bouček & Narendran".

Diagnosis.

This species comes near Epitranus crassicornis Bouček in the key to species by Bouček (1982) and Narendran (1989), but differs from it in having: 1) malar space setose (malar space with very few setae in Epitranus crassicornis ); 2) antenna not unusually short (in Epitranus crassicornis antenna unusually short and stout, pedicel and flagellum combined only 1.1 × width of head), and 3) mesosoma usually black (in Epitranus crassicornis mesosoma red).

Description.

♀♂, length of body 2.4-4.9 mm.

Colour. Body mostly black with reddish colour on legs beyond coxae and at least ventrally on metasoma.

Head. Scrobal area flat with cross striae merging with reticulations; antenna extremely variable in length. In ♀ combined length of pedicel and flagellum 1.0-1.2 × as long as wide; T7 1.3 × as long as broad, scape in ♀ 0.8-1.2 × as long as width of vertex, usually reaching lower margin of anterior ocellus but sometimes shorter. In ♂ flagellum 1.3-2.6 × breadth of head; F1 2.0-3.4 × as long as broad and 0.4-0.8 × length of scape.

Mesosoma. Punctures on pronotum and mesoscutum close, with interstices narrower than diameter of a puncture, mostly smooth, occasionally rugulose; punctures on scutellum deeper than punctures of mesoscutum, interstices smooth and shiny.

Wings. Fore wing 2.8-3.0 × as long as broad, pilosity fairly extensive including a distinct line of setae from the end of fore wing venation to the base of wing and a hair line ventrally of costal cell.

Legs. Hind coxa twice as long as wide, outer ventral margin with 7-12 teeth; hind tibia with subbasal hump often indistinct or indicated by suberect setae and concealed small denticles; tarsal sulcus usually confined to one-third above basal insertion.

Metasoma. Petiole in ♀ 3.8-5.6 x, in ♂ 4.6-6.8 × as long as broad. Petiole shorter than metasoma in both sexes, 0.6-0.7 × length of metasoma.

Variation.

Bouček (1982) stated that "extreme forms are connected by numerous transitional forms".

Host.

Corcyra cephalonica Stainton ( Lepidoptera : Pyralidae ) in rice storage in Kerala (India).

Distribution.

India, Nepal, Sri Lanka, Vietnam (Dai Lanh, Bian; Bam Me Thuot; Dalat), Thailand, Laos, Malaysia, Indonesia, Philippines, China (Taiwan), Japan ( Bouček 1982; Narendran 1989).