Myosoma errans (SZÉPLIGETI)

Papp, J., 2012, A Taxonomic Study Of The Myosoma Genus-Group With Description Of Amyosoma Cavei Sp. N. From Honduras (Hymenoptera: Braconidae: Braconinae: Braconini), Acta Zoologica Academiae Scientiarum Hungaricae 58 (1), pp. 1-29 : 15-16

Myosoma errans (SZÉPLIGETI)

( Figs 48–56 )

Bracon errans SZÉPLIGETI, 1902: 42 (1 ♀), type locality: “ Brasilien: Fonteboa”, female holotype (designated by J. PAPP 1969 in QUICKE 1991: 172) in Magyar Természettudományi Múzeum, Budapest; examined. – SZÉPLIGETI 1904: 187 (in key).

Myosoma errans (SZÉPLIGETI) : SZÉPLIGETI 1906: 588 (comb. n.). SHENEFELT 1978: 1707 (as valid species, literature up to 1906). QUICKE 1991: 172 (type depository).

Designation of the female holotype of Bracon errans – (First label, handwriting) “Fonteboa / Brasil ”; (second label) “ Br. errans ” (Szépligeti’s handwriting) / “det Szépligeti” (printed); third label is the holotype card, fourth label is with the inventory number “1247”; fifth label is with the actual name, Myosoma errans , given by Szépligeti (in 1906). – Holotype is in fairly good condition: (1) pinned by the mesosoma; (2) left flagellum deficient (a piece of flagellum glued on a separate card), right antenna missing; (3) a small part of right fore wing (proximal from pterostigma) missing; (4) missing: tarsomeres 3–5 of right hind leg.

Redescription of the female holotype of Bracon errans – Body 9 mm long. Scape in outer-lateral view cubic-form: as long dorsally as broad apically ( Fig. 48 ). Left flagellum deficient: present first fifteen flagellomeres. – Head in dorsal view transverse ( Fig. 49 ), 1.7 times as broad as long, eye somewhat protruding and 1.6 times longer than temple, temple rather receded. Ocelli small, almost round, OOL nearly three times longer than POL. Eye in lateral view 1.3 times as high as wide, temple beyond eye narrowing ventrally and eye 1.7 times wider than temple ( Fig. 50 , see arrows). Horizontal diameter of oral opening twice longer than shortest distance between opening and eye. Head polished, hairy.

Mesosoma in lateral view 1.6 times as long as high, polished. Notaulix faintly distinct anteriorly. – Hind femur thick, three times as long as broad medially ( Fig. 51 ), together with hind tibia with long hairs. Hind basitarsus as long as tarsomeres 2–3 and half of 4th tarsomere combined. Basal lobe of claw deep as in Fig. 52 .

Fore wing somewhat longer than body. Pterostigma ( Fig. 53 ) 3.3 times as long as wide and issuing r somewhat proximally from its middle; r shorter than width of pterostigma, second submarginal cell long, 3–SR 2.4 times as long as 2–SR; SR1 bent, almost 1.3 times longer than 3–SR and reaching tip of wing. First discal cell long and narrow, 1–SR–M S-form and 1.7 times as long as 1–M ( Fig. 54 ). – Hind wing: 1r–m curved as in Fig. 55 .

First tergite ( Fig. 56 ) long and narrow, almost five times as long as broad behind; scutum distinctly narrow, laterally from scutum margin just distinct, together with further tergites polished. Second tergite transverse, 3.9 times as broad behind as long medially, laterally less narrowing; third tergite nearly 1.25 times longer than second tergite medially, suture between tergites 2–3 straight and fairly deep. Ovipositor sheath as long as hind tibia + basitarsus combined.

Antenna, head, mesosoma, legs and last three tergites black; metasoma testaceous. Head and mesosoma with weak rusty tint. Palpi black, mandible dark rusty; cheek brownish yellow. Wings light brownish fumous. Pterostigma dark brown, veins proximo-distally brownish yellow to brown.

Male and host unknown.

Distribution – Brazil.

Taxonomic position – Myosoma errans is nearest to M. brullei , for their distinction see the key-couplets 12 (13)–13 (12).

Figures

Figs 48–56. Myosoma errans (SZÉPLIGETI), female holotype: 48 = scape, pedicel and first flagellomere in outer-lateral view, 49 = head in dorsal view, 50 = head in lateral view, 51 = hind femur with indication of its hairs, 52 = claw, 53 = distal part of right fore wing, 54 = first discal cell of right fore wing, 55 = vein 1r–m of hind wing, 56 = tergites 1–3