Microchelonus vissas, Papp, Jenő, 2016

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 : 311-312

Microchelonus vissas sp. n.

( Figs 476 –483)

Materialexamined – Femaleholotype: CostaRica, SanJosé, Escazu, 25–29 July 1988, leg. F. D. Parker. – Holotypeisingoodcondition: (1) glueddirectlytothepinbyitsright mesopleuron, (2) rightantennadeficient: presentscape, pedicelandflagellomeres 1–2. Holotype is deposited in HNHM, Hym. Typ. No. 12247.

Etymology – Thenewspeciesreceivedthelatinizedphantasyname “vissas”.

Description of the female holotype – Body 3 mm long. Antenna shorter than body (2.5 mmlong) andwith 16 antennomeres. Scapethriceaslongasbroad ( Fig. 476 ). Firstflagellomeresixtimesandpenultimateflagellomeretwiceaslongasbroad (cf. Fig. 301). – Head indorsalviewtransverse, twiceasbroadaslong (60:29), eye 2.2 timeslongerthantemple, templereceded (cf. Fig. 460). OOL = POL. Eyeinlateralview 1.8 timesashighaswide, genabeyondeyelessbroadeningventrally, 0.8 timesaswideaseye, substriolate- rugulose andsubshiny ( Fig. 477 seearrows ). Clypeustwiceaswidebelowashighmedially, its lowermargintruncate ( Fig. 478 ), subrugulose, dull. Facemoreorlesstransverselysubrugulose (slightlystrongerthanthatofclypeus). Vertexandocciputtransverselysubstriolate, subshiny. Clypeusandfacewithsilverypubescent.

Mesosomainlateralviewstout, 1.2 timesaslongashigh, scabrous, notaulixdistinct. Scutellumroughlyrugose (cf. Fig. 82 ). Hindfemur 2.9 timesaslongasbroadmedially; hindtibiaalmostfourtimeslongerthanbroaddistallyandjustlessbroad (16:17) thanfe- mur ( Fig. 479 seearrows ). Hindbasitarsusaslongastarsomeres 2–4 combined.

Forewingshorterthanbody (2.7 mmlong). Pterostigmawide, 2.1 timesaslongas wideandissuing r fromitsmiddle, faintlybentandsomewhatlonger (8:6-7) than 3–SR, SR1 feeblyS-form, 1–R1 aslongaspterostigma ( Fig. 480 seearrows ).

Carapaceindorsalviewsomewhatglobose, 1.7 timesaslongasbroadposteriorly, longitudinallyandfinelystriatedwithfewanastomoses, apicallyrounded (Fig. 483). Cara- paceinlateralview 3.2 timesaslongashighposteriorly, apicallydeclivous ( Fig. 481 see arrows). Carapaceapico-ventrallyweaklyincurved ( Fig. 482 ). Carapaceapicallywithout foramen. Ovipositorsheathshort, concealed.

Bodyblack, carapaceantero-mediallywithayellowmacula. Scapeandpedicellight brownishwithdarkeningsuffusion. Flagellumblackish. Palpidark. Teguladarkbrown, parategulabrown. Legs 1–2 yellowwithlessdarkpattern. Leg 3 blacktoblackish, yellow: trochanters, baseoffemurandtibia. Tarsi 2–3 darkfumous. Wingssubhyaline, pterostigma brown, veinsyellowtolightbrown.

Maleandhostunknown.

Distribution – Costa Rica.

Taxonomic position – The new species, Microchelonus vissas , is close to M. aperon sp. n. viewingtheirsimilarforewingvenation ( Figs 32 , 480 ), shortcorporallengthandyellowcolouredlegswithmuchdarkpattern; thetwospe- ciesaredifferentiatedbythefollowingfeatures:

Figures

Figs 470–482. 470–475. Microchelonus turgoclarus Papp, 2010 (f, holotype): 470 = head in dorsalviewwithindicationofitssculpture, 471 = headinlateralviewwithindicationof itssculpture, 472 = headinfrontalview, 473 = distalpartofrightforewing, 474 = carapace indorsalviewwithindicationofitssculpture, 475 = posteriorthirdofcarapaceinventral view. 476–482. Microchelonusvissas sp. n. (f, holotype): 476 = scapeandpedicalinlateral view, 477 = headinlateralviewwithindicationofitssculpture, 478 = clypeus, 479 = hind femur + tibia, 480 = distalpartofrightforewing, 481 = carapaceinlateralview, 482 = pos-

Figs 75–87. 75–76. Microchelonus brasiliensis (Brues, 1912): 75 = distal part of right fore wing (fm), 76 = carapaceinlateralview. 77–87. Microchelonusbuscki (Viereck, 1912) (femaleholotype: 78, 81, 84, 85; female: 77, 79; female + male: 80, 82, 83, 86; male: 87): 77 = scape, pedicel andproximal / distalpartsofflagellomeres, 78 = headindorsalviewwithindicationofits sculpture, 79 = headindorsalview, 80 = clypeus, 81 = headinlateralviewwithindication of its sculpture, 82 = scutellum, 83 = distal part of right fore wing, 84 = hind femur, 85 = carapaceindorsalviewwithindicationofitssculpture, 86 = carapaceindorsalview, 87 =

Figs 32–45. 32–34. Microchelonus aperon sp. n. (f, holotype): 32 = distal part of right fore wing, 33 = carapaceindorsalviewwithindicationofitssculpture, 34 = carapaceinlateral view. 35–44. Microchelonusavron sp. n. (m, holotype): 35 = headindorsalviewwithindica- tionofitssculpture, 36 = clypeus, 37 = headinlateralviewwithindicationofitssculpture, 38 = propodealcarinaindorsalview, 39 = hindfemur + tibia, 40 = distalpartofrightfore wing, 41 = carapaceindorsalviewwithindicationofitssculpture, 42 = carapaceinlateral view, 43 = apicalforamenofcarapace, 44 = posteriorthirdofcarapaceinventralview. 45. Microchelonusbermus sp. n. (m, holotype): 45 = capaceinlateralview.