Acmopolynema orientale ( Narayanan, Subba Rao & Kaur 1960 )

TRIAPITSYN, SERGUEI V. & BEREZOVSKIY, VLADIMIR V., 2007, Review of the Oriental and Australasian species of Acmopolynema, with taxonomic notes on Palaeoneura and Xenopolynema stat. rev. and description of a new genus (Hymenoptera: Mymaridae), Zootaxa 1455 (1), pp. 1-68 : 26-27

Acmopolynema orientale ( Narayanan, Subba Rao & Kaur 1960)

( Figs 41 –46)

Maidliella orientalis Narayanan, Subba Rao & Kaur 1960: 888–889 . Type locality: Delhi, India (holotype female [IARI,?lost; data on the presumed holotype given by Hayat & Anis (1999)], not examined).

Polynema (Maidliella) orientalis (Narayanan, Subba Rao & Kaur) : Narayanan & Subba Rao 1961: 667.

Polynema orientalis (Narayanan, Subba Rao & Kaur) : Subba Rao & Hayat 1983: 139.

Acmopolynema maculata Subba Rao 1989: 155 . Type locality: Mandi–Nerchowk , Himachal Pradesh, India (holotype female [BMNH]). Syn. n.

Acmopolynema nixoni Subba Rao 1989: 156 . Type locality: Mudigere , Karnataka, India (holotype female [BMNH]). Syn. n.

Acmopolynema dravida Subba Rao 1989: 157 . Type locality: Coimbatore, Tamil Nadu, India (holotype female [BMNH]). Synonymized under A. maculatum by Hayat & Anis 1999: 306.

Acmopolynema orientalis (Narayanan, Subba Rao & Kaur) : Hayat 1992: 85.

Neonarayanella orientalis (Narayanan, Subba Rao & Kaur) : Husain & Farooqi 1996: 83.

Acmopolynema orientale (Narayanan, Subba Rao & Kaur) : Hayat & Anis 1999: 303–304 ( A. nixoni ), 304–306 ( A. orientale ), 306–307 ( A. maculatum ); Xu & Lin 2002: 145–147.

Type material examined

Paratype female of A. maculata (on slide, BMNH): INDIA, Himachal Pradesh, Mandi–Nerchowk , 8.x.1979, Z. Bouček .

Paratype female of A. nixoni (on slide, BMNH): INDIA, Kerala, Periyar Animal Sanctuary , 5–15.x.1979, J.S. Noyes .

Paratype female of A. dravida (on slide, BMNH): INDIA, Tamil Nadu, Coimbatore , 25.ix–1.x.1979, J.S. Noyes .

Additional material examined

CHINA: Fujian, Fuzhou, Jinshan , 28.viii.1988, N.-q. Lin [1 female, BCRI] . Hainan Island, Dan Xian , 11.v.1983, Z. Bouček [1 female, BMNH] . INDIA: New Delhi, IARI area, 26.x.1979, Z. Bouček [1 male, BMNH] . Karnataka, Bannerghatta National Park , 5.ix.1979, Z. Bouček, J.S. Noyes [3 males, BMNH] . Kerala, Periyar Animal Sanctuary , 5–15.x.1979, J.S. Noyes [1 male, BMNH] . West Bengal, Calcutta , xi.1958, N.L. Krauss [1 female, CNCI] . SRI LANKA, Central Province, Kandy District, Victoria –Randenigala–Rantembe Sanctuary, 07°13'N, 80°57'E, 23–30.viii.1999, M. & J. Washbauer [4 females, 1 male, UCDC] . THAILAND, Chiang Mai, 20–23.iv.1989, G.T. Baker [1 female, CNCI] .

FIGURES 44–46. Acmopolynema orientale (male, India). 44. Antenna. 45. Forewing. 46. Genitalia.

Redescription

MALE. "Exactly similar to female except in antennae" according to the original description ( Narayanan et al. 1960, p. 889), but that statement is incorrect because all known males of A. orientale , as redescribed herein, usually have a hyaline forewing (a very small infumate spot may be occasionally present on the disc, Fig. 45), with its chaetotaxy also being sexually dimorphic. The single male paratype of this species is missing from IARI ( Hayat & Anis 1999; J.M. Heraty, personal communication). However, both the aforementioned male specimen from the IARI area in New Delhi, which is a type locality of Maidliella orientalis , and another male from Sri Lanka definitely belong to A. orientale . They have a hyaline forewing, without dark bands, and with discal setae different from those on the female forewing. The Sri Lankan male has females from the same series, which we identified as A. orientale . Antenna (Fig. 44) with scape very short; genitalia (Fig. 46) elongate, as typical for Acmopolynema .

Diagnosis

Member of the orientale species group. The female of this species was adequately redescribed and illustrated by Hayat & Anis (1999) and Xu & Lin (2002). The body length, the size of the dark bands on the female forewing (particularly of the apical one), and to the lesser degree the lengths of funicle segments vary in this species [hence the above synonymies of A. maculata Subba Rao and A. nixoni Subba Rao , which are within the range of A. orientale ], that led to its unnecessary oversplitting into four taxa by Subba Rao (1989). The important features for recognition of A. orientale are as follows: female antenna with all funicle segments light brown ( Fig. 41 ); propodeum with wide submedial carinae reaching or almost reaching its anterior margin ( Fig. 42 ); metacoxa and metafemur reticulate; female forewing ( Fig. 43 ) with characteristic markings and chaetotaxy; male forewing usually hyaline or at most with a very small infumate spot on the disc.

Distribution China, India, Sri Lanka [new record], and Thailand [new record].

Figures

FIGURES 41–43. Acmopolynema orientale (female, China). 41. Antenna. 42. Propodeum. 43. Forewing.