Macreupelmus laticlavius, Gibson, Gary A. P., 2016

Gibson, Gary A. P., 2016, Revision of the Neotropical genus Macreupelmus Ashmead (Hymenoptera: Chalcidoidea: Eupelmidae), Zootaxa 4161 (1), pp. 81-115: 107-109

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Macreupelmus laticlavius

n. sp.

Macreupelmus laticlavius   n. sp.

Figs 96–105 View FIGURES 96 – 105

Type material. Holotype ♀ (CNC). BOLIVIA: LaPaz , Chulumani | Apa-Apa, 16º22'S 67º30'W | 1–4.v.1997, 1800m | L. Masner, s.s. 2-09 / HOLOTYPE ♀ | Macreupelmus   | laticlavius   | Gibson GoogleMaps   . Holotype point-mounted by sternum; entire; uncontorted.

Paratype. BOLIVIA. Same data as holotype (1 CNC, CNC Photo 2016-15).  

Etymology. The Latin word laticlavius   (having a broad stripe) in reference to the pattern of the anterior hyaline region of the fore wing of females.

Description. FEMALE (habitus: Fig. 96 View FIGURES 96 – 105 ). Head ( Fig. 101 View FIGURES 96 – 105 ) with interantennal prominence, lower face ( Fig. 102 View FIGURES 96 – 105 ), lower parascrobal region and gena green or with limited blue to purple lusters under some angles of light; scrobal depression with scrobes extensively reddish-violaceous to blue or purple ventrally, but depression dorsally, upper parascrobal region and frons dark with variably distinct coppery to reddish-violaceous lusters ( Fig. 97 View FIGURES 96 – 105 ) to level of posterior margin of posterior ocelli; vertex partly green to blue or purple; vertex and temples with dark setae. Head with interorbital distance about 0.31× head width; OOL: POL: LOL: MPOD = 0.37–0.4: 1.2–1.3: 1.0– 1.1: 1.0; distance between anterior ocellus and inner orbit about 1.25–1.5× MAOD; anterior ocellus about 1.0× MAOD from dorsal extent of scrobal depression, with sulcus extending between ventral margin and depression, but not within depression; frons ( Fig. 97 View FIGURES 96 – 105 ) granular except narrowly punctulate-reticulate along inner orbit, and interocellar triangle much more coarsely punctate-reticulate similar to vertex. Antenna ( Fig. 102 View FIGURES 96 – 105 ) dark brown except scape dorsoapically for distance at most about equal to length of pedicel, and ventral surface of at least apical clavomere pale; scape robust-compressed, about 4.0–4.6× as long as medial width, and in lateral view about apical one-third of pedicel extending beyond ventral margin of scape when at right angle to scape ( Fig. 102 View FIGURES 96 – 105 ).

Mesoscutum carinate mediolongitudinally from apex of anteromedial lobe partly through posteromedial depressed region; scutellar-axillar complex with axillae meshlike reticulate and scutellum with similar but somewhat more longitudinally aligned reticulations. Front leg dark except tarsus sometimes lighter, more orangish. Middle leg dark except trochantellus dorsally and ventroapically, and knee narrowly pale to white, or sometimes extreme apex of tibia and tibial spur lighter, more orangish; femur uniformly setose over about apical half ( Fig. 104 View FIGURES 96 – 105 ); tibia with 6 pegs forming distinct patch ( Fig. 100 View FIGURES 96 – 105 ). Hind leg dark except apex of coxa, trochanter and trochantellus white, femur paler, more or less yellowish, dorsally for about apical two-thirds ( Fig. 103 View FIGURES 96 – 105 ), and tibia white basally. Fore wing ( Fig. 98 View FIGURES 96 – 105 ) with dark setae continuously through basal cell onto infuscate basal part of disc, without evident hairlike white setae on mediocubital fold beyond basal cell, but disc with hyaline region with white setae behind marginal vein extending as oblique band completely to mediocubital fold where posterior margin truncate along fold; hyaline region along posterior margin of wing with white setae ( Figs 98, 99 View FIGURES 96 – 105 ); costal cell dorsally entirely setose along length, with several rows basally becoming less apically. Propodeum (cf. Fig. 41 View FIGURES 34 – 41 ) medially elongate, anterior margin of plical region broadly, shallowly, V-like angulate and ∩-like incurved posterior margin distant from anterior margin, with surface minutely granular posteriorly but mostly reticulaterugose to obliquely strigose.

Gaster mostly brown dorsally with apical three tergites darker brown and penultimate tergum with at most slight purplish luster; Gt6 reticulate to reticulate-rugose or reticulate-imbricate ( Fig. 105 View FIGURES 96 – 105 ). Ovipositor sheaths shorter than metatibia ( Fig. 96 View FIGURES 96 – 105 ), about 0.7–0.8× metatibia length.

Distribution (Map 1C). Bolivia.

Remarks. As discussed under M. brasiliensis   , the species status of M. laticlavius   requires further confirmation through molecular evidence or additional specimens to determine whether the primary differentiating fore wing color and setal pattern is valid or simply represents regional variation in M. brasiliensis   . However, the two M. laticlavius   females also have a somewhat less compressed scape than M. brasiliensis   females, the relative length:width ratio of the scape being greater and when at a right angle to the scape about the apical third of the pedicel extending beyond the ventral limit of scape (cf. Figs 40 View FIGURES 34 – 41 , 102 View FIGURES 96 – 105 ).


Canadian National Collection of Insects, Arachnids, and Nematodes