Alaptus plih Triapitsyn

Serguei V. Triapitsyn, 2017, Revision of Alaptus (Hymenoptera: Mymaridae) in the Holarctic region, with taxonomic notes on some extralimital species, Zootaxa 4279 (1), pp. 1-92 : 63-65

Alaptus plih Triapitsyn , sp. n.

( Figs 130–133 )

Type material. Holotype female [ CAS] on slide ( Fig. 133 ) labeled: 1. “ RUSSIA: Sakhalin Island ca. 6 km E Sokol , nr. Belaya R. 47°14.56’N, 142°46.56’E (MT) 31.vii.2001, D. J. Bennett & T. Anderson, SK-01-DJB-028B”, 2. “ CAS Mounted at UCR /ERM by V. V. Berezovskiy 2007 in Canada balsam ”, 3. [magenta] “ Alaptus plih Triapitsyn HOLOTYPE ♀ ”; 4. “ Det. by S. V. Triapitsyn 2006”. The holotype ( Fig. 131 ) is in good condition, mounted dorsoventrally, with a pair of wings detached and mounted under a separate coverslip; missing are a clava of one antenna and a pair of wings . Paratype: same locality and collectors as the holotype except collected 16.vii.2001 (code SK-01-DJB-028C) [1 ♀ on slide, CAS]. The type locality is in Sakhalinskaya oblast’ of Russia .

Description. FEMALE (holotype). Head and gaster dark brown, mesosoma yellowish to light brown; appendages light brown except metacoxa brown.

Antenna ( Fig. 130 ) shorter than body; scape (including radicle) 5.2× as long as wide, almost smooth; F1 shorter than pedicel and the shortest funicle segment, F2 the longest funicle segment and about 4× as long as wide, F3–F5 subequal in length, F4 and F5 the widest funicle segments; clava 3.8× as long as wide, apparently with 4 mps, as long as combined length of F3–F5.

Fore wing ( Fig. 132 ) 9.3× as long as wide; disc slightly infumate and bare except the admarginal rows; longest marginal seta 4.0× maximum wing width. Hind wing ( Fig. 132 ) about 17× as long as wide; disc a little more strongly infumate, with 1 row of setae closer to posterior margin; longest marginal seta 6.2× maximum wing width.

Gaster ( Fig. 131 ) longer than mesosoma. Ovipositor short, not exserted beyond apex of gaster, occupying about 0.4× its length, and a little more than 0.6× length of metatibia.

Measurements of the holotype (µm). Body 466; head 112; mesosoma 173; gaster 215; ovipositor 188. Antenna: scape (including radicle) 79; pedicel 42; F1 30; F2 39; F3 33; F4 33; F5 33; clava 106. Fore wing 427:46; longest marginal seta 182. Hind wing 421:25; longest marginal seta 155.

Variation (paratype). Body length 488 µm; fore wing 9.1× as long as wide, longest marginal seta 4.1× maximum wing width; hind wing about 18× as long as wide, longest marginal seta 6.6× maximum wing width; ovipositor a little less than 0.7× length of metatibia.

MALE. Unknown.

Diagnosis. Alaptus plih is most similar to A. pallidicornis and A. sp. near pallidicornis , from which it differs in the consistent body color patterns, as indicated in the key.

Etymology. The species name is a noun in apposition and a combination of letters without any meaning.

Hosts. Unknown.

Comments. I also examined one specimen which could belong to this species: RUSSIA: PRIMORSKIY KRAY, Ussuriyskiy rayon, Gornotayozhnoye , 24.ix–5.x.1999, M.V. Michailovskaya [1 ♀, UCRC] .

Figures

FIGURES 130 – 133. Alaptus plih sp. n. ♀ (holotype). 130, antenna; 131, body; 132, fore and hind wings; 133, slide.