Anaphes quinquearticulatus Huber & Triapitsyn

Huber, John T. & Triapitsyn, Serguei V., 2017, Two genera of Mymaridae (Hymenoptera) new to Africa, a remarkable new species of Anaphes and new generic synonymy, ZooKeys 658, pp. 39-61 : 43

Anaphes quinquearticulatus Huber & Triapitsyn sp. n. Figs 7-8, 9, 10, 11-13, 14-16

Type material.

Holotype female (UCRC) on slide (Fig. 16) labelled: 1. " Anaphes quinquearticulatus Huber & Triapitsyn ♀ dorsal Holotype". 2. "Rep. Congo: Pool Abio, Lesio-Louna Park, 3°6'1"S, 15°31'26"E 29.vii.2008 Sharkey MT". 3."Univ. Calif. Riverside Ent. Res. Museum UCRC Ent. 264592". 4. "Mounted at UCR/ERM by V.V. Berezovskiy 2008 in Canada balsam". Paratypes: 3 females. REPUBLIC OF THE CONGO. Pool. Lesio-Louna Wildlife Reserve, Abio, 330 m, 3°06.020'S, 15°31.440'E, 29.vii.2008, M. Sharkey & Y. Braet, MT (1 female, UCRC); Iboubikro, 3°16'11"S, 15°28'16"E, 23.vii.2008, M. Sharkey, MT (2 females, CNC, UCRC).

Diagnosis.

Female. Funicle 5-segmented (Figs 8, 15), with 1 mps on fl1-fl4 and 2 mps on fl5 (Fig. 8), the mps unusually wide (Figs 7, 8). Mandible with 5 teeth (Figs 9, 10).

This species is unique among Anaphes in having only five funicle segments, instead of six as in all other described species. Otherwise, Anaphes quinquearticulatus has all the diagnostic features (listed above) of Anaphes . Because fl1 bears a distinct mps and is as long as any of the remaining segments it is almost certain that the first funicle segment in Anaphes quinquearticulatus , not some other segment, was lost, i.e., fl1 in this species is equivalent to fl2 in any other Anaphes species. This is because fl1 in females of all other Anaphes never have mps and is almost always distinctly shorter than fl2 or any other segment. The fore wing almost devoid of surface microtrichia is also unique; the single line of microtrichia present represents the line that separates the marginal from the medial spaces in any other Anaphes species. The narrow evenly curved fore wing is also interesting; it is most similar to undescribed Anaphes species found near water in the Oriental region.

Description.

Female. Body length 255-358 (n=4, slide specimens) (dry length of one paratype before slide mounting 264). Dark brown (presumably), appendages apparently lighter in colour (cleared specimens so colour not really known). Fore wing margin in apical half narrowly but distinctly margined with brown, otherwise with faint uniform brown suffusion over most of surface except partly behind venation.

Head. Head width 123-135 (n=3). Face with 7 setae on each side (Fig. 9) and with faint reticulate sculpture. Mouthparts (Figs 9, 10) with mandible about as long as maxilla and with 5 teeth, the two ventral ones large, the 3 dorsal ones small and in one specimen a small tooth between the large ventral ones (Figs 9, 10). Occiput with vertexal suture (= supraorbital suture extension onto occiput) long and in line with supraorbital trabecula, only weakly diverging from posterior eye margin.

Antenna. Scape on inner surface and pedicel with longitudinally reticulate sculpture; funicle 5-segmented, with 1 mps on fl1-fl4 and 2 mps on fl5 (Fig. 8, 15), the mps unusually wide (Figs 7, 8); clava with 6 mps. Measurements (length/width, n = 3 or 4) of antennal segments: scape 53 –60/12– 16, pedicel 29 –34/20– 22, fl1 35 –37/11– 12, fl2 33 –35/10– 12, fl3 32 –34/10– 11, fl4 33 –35/10– 12, fl5 38 –42/13– 16, clava 79 –86/19– 23. Length/width ratios of antennal segments: scape 3.29-4.26, pedicel 1.52-1.66, fl1 3.10-3.41, fl2 3.19-3.63, fl3 3.04-3.44, fl4 3.04-3.48, fl5 2.60-2.79, clava ≈3.69-4.55 (clava not always oriented in perfect lateral view).

Mesosoma. Mesoscutum width 82-90 (n=3), with coarse reticulate sculpture, the cells irregularly shaped but more longitudinally stretched on midlobe, more isodiametric anteriorly on lateral lobe (Fig. 7); scutellum with coarse reticulate sculpture, the cells smaller on anterior scutellum, larger and more transversally stretched on frenum (Fig. 7); dorsellum apparently smooth (Figs 11, 12; propodeum with sculpture as on frenum (Figs 11, 12). Mesoscutal midlobe and axilla with relatively long setae.

Wings. Fore wing narrow, beyond level of venation with evenly concave posterior margin and surface with one row of about 10 microtrichia extending from stigmal vein almost to wing apex and a second row extending proximally from socketed seta at apex of frenal fold to just past base of parastigma (Fig. 13). Hind wing without microtrichia on surface between the usual anterior and posterior rows. Fore wing length (n=4) 394-428, width 30-33, length/width 13.0-13.5, longest marginal setae ≈106-127. Hind wing length 376-414, width 13-15, longest marginal setae 86-94.

Legs. Metatarsomere 1 0.78-0.92 × as long as metatarsomere 2 (Fig. 14).

Metasoma. Ovipositor length 124-129 (n=4), 1.13-1.20 × as long as metatibia length (104-114) and extending slightly forward of junction between mesosoma and metasoma (Fig. 14, gaster slightly crushed and poorly oriented).

Male. Unknown.

Derivation of species name.

Latin for five + articulated; an adjective referring to the unique 5-segmented funicle, the first Anaphes to be described with this reduced antennal segmentation.