Microchelonus shenefelti ( McComb, 1968 )

Papp, Jenő, 2016, First Survey Of The Neotropical Species Of Microchelonus Szépligeti With Descriptions Of Twenty-Five New Species (Hymenoptera: Braconidae: Cheloninae), Acta Zoologica Academiae Scientiarum Hungaricae 62 (3), pp. 217-344 : 300-302

Microchelonus shenefelti ( McComb, 1968)

(Figs 411–418)

Chelonus (Microchelonus) shenefelti McComb, 1968: 10 (inkey) and 116 (description) fm, type locality: USA, Wisconsin, PortAngeles, femaleholotype (fivefemale + onemalepara- types) inShenefeltCollection, DepartmentofEntomology, UniversityofWisconsin, Madison ( USA); twofemaleparatypesexamined (malenotseen).

Microchelonusshenefelti (McComb): ShENEfElt 1973: 903 (typelocality: “PortAngeles, Washington ” emendation, comb. n., literatureupto 1968).

Materialexamined (twofemaleparatypes) – “PortAngeles, Washingtonstate”, Mt.

Pleasentdistrict, sweeping Lathyrustorreyi, 18 July 1945, leg. R. D. Shenefelt .

Additional features to the original description (McComb l.c.) – f. Body 3.4–3.5 mm long. Antennaaboutthree- fourthsaslongasbodyandwith 16 antennomeres. Headindorsal view 1.9–2 timesasbroadaslong, eyeaslongastemple, templerounded (Fig. 414). Ocelli faintlyelliptic, small, POLslightlyshorterthanOOL (9–12-13). Eyeinlateralviewtwice ashighaswide, genabeyondeyejustlesswide (15:16) thaneye (Fig. 415 seearrows). Clypeuslesswide, 1.6–1.7 timesaswidebelowashighmedially (Fig. 411). Headabove transverselysubstriolate, subshiny. Facemoreorlesstransverselysubrugulose, subshiny. Clypeushairpunctate, shiny.

Mesosomainlateralviewstout, 1.2 timesaslongashigh, rugosetoscabrous, mesoscutummediallyrugulose- punctate. Scutellumrugose (Fig. 412). Propodealcarinadistinct, lateralpairofdenticulesgreaterthanmiddlepair (Fig. 413). Hindfemur 3.3 timesaslong asbroadmedially (cf. Fig. 268). Hindtibiadistallysomewhatlessbroadthanfemur. Hind basitarsusaslongastarsomeres 2–4 combined.

Figs 414–427. 414–418. Microchelonus shenefelti ( McComb, 1968) (f, paratype): 414 = head in dorsalview, 415 = headinlateralviewwithindicationofitssculpture, 416 = distalpartof rightforewing, 417 = carapaceindorsalviewwithindicationofitssculpture, 418 = cara- paceinlateralview. 419–427. Microchelonussubplanus Papp, 1999 (f, holotype: 419–425; m, paratype: 426–427): 419 = ultimatefiveflagellomeres, 420 = headindorsalviewwith indicationofitssculpture, 421 = clypeus, 422 = scutellum, 423 = distalpartofrightfore wing, 424 = carapaceindorsalviewwithindicationofitssculpture, 425 = apicalforamenof carapace, 426 = posteriorendofcarapaceinlateralview, 427 = apicalforamenofcarapace.

Forewingone- fourthshorterthanbody (2.5–2.6 mmlong). Pterostigmanarrow, twiceaslongaswide, issuing r clearlydistallyfromitsmiddle. 1–R1 somewhatshorter than pterostigma (35:40), 3–SR just shorter than r (Fig. 416 see arrows).

Carapaceindorsalviewbelly, 1.6 timesaslongasbroadposteriorly, fairlydense- lystriated, interstriationscrenulated, apicallyrugulose- rugose. Carapaceinlateralview 2.6–2.7 timesaslongashighposteriorly (Fig. 418 seearrows). Carapaceapico-ventrally somewhatincurved.

Groundcolourofbodyblack. Antennablack. Palpibrownishyellow. Teguladark browntobrownish. Carapaceanteriorlylemonyellow, laterallyextendingtoposteriorly (Fig. 417). Legsblackish, yellow: femurapically, tibiae 1–3 andforetarsus, tarsi 2–3 dark fumous. Wingshyaline, pterostigmaopaquebrown, veinsproximo-distallyyellowtolight brownish.

m (featuresafterMcCombl.c.) – Body 3.4 mmlong. Antennaaslongasbodyand with 22 antennomeres. Apicalforamenofcarapacesmall, oval, twicewiderthanhigh, i.e. itswidthtwo-thirdsofthehindbasitarsus.

Hostunknown.

Distribution – USA (Washington),? Mexico.

Taxonomic position – In the original description (McComb l.c.) Microchelonus shenefelti isrelatedto M. fulgidus (McComb) . Inthekeytothefemale Microchelonus species it runs to M. flavicoxa sp. n., see couplets 130 (125) – 132 (131).