Messatoporus elektor Santos & Aguiar 2013, sp. nov.
Creators: name: Santos, Bernardo F.
name: Aguiar, Alexandre P.
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Messatoporus
Messatoporus elektor

description: Messatoporus elektor Santos, sp. nov.   
(Figs 60, 143, 174, 323)  
 Female. Fore wing 6.9 mm. HEAD: Mandible densely covered with long hairs; MLW 2.3; MWW 0.52; dorsal tooth in front view projected upwards, much longer than ventral tooth; ventral tooth triangular. MSM 0.33. Clypeus basally evenly convex, apically gradually flattened, centrally concave; CHW 2.23; CWW 2.42; apical area medially straight, laterally with distinct triangular lobes, its margin regular, not raised. Antenna with 27 flagellomeres; flagellum uniform; apex of apical flagellomere much narrower than base, distinctly tapered. Supraantennal area shiny, scarcely punctate, not striate near antennal sockets, ventrally distinctly concave, with very weak, low median line. Occipital carina uniformly curved, fading out at distance shorter than basal width of mandible from the hypostomal carina. Temple and gena moderately wide, gena regular (as in Fig. 260).   
THORAX: Pronotum sparsely pilose, mat, finely and densely punctate, ventrally with strong wrinkles; epomia weak, complete, short, ending far from dorsal margin of pronotum, after diverging from pronotal collar approximately straight. Mesoscutum moderately and uniformly convex, subcircular, 1.19 × as long as wide, densely covered with short hairs, mat, densely punctulate; notaulus reaching about 0.71 of mesoscutum length, moderately impressed, surface over notaulus with weak and short transverse wrinkles; scuto-scutellar groove shallow, with distinct longitudinal wrinkles. Subalar ridge weakly projected; epicnemial carina reaching about 0.7 of distance to subalar ridge, more or less uniformly curved; sternaulus moderately strong, wide and shallow at posterior 0.25, strongly sinuous, smooth; scrobe very shallow; mesopleural suture with vestigial longitudinal wrinkles. Mesosternum medially without transverse wrinkles or depressions; median portion of posterior transverse carina of the mesothoracic venter short and almost indistinct, straight. Transverse sulcus at base of propodeum moderately wide, about 0.62 × as long as anterior area of propodeum, impunctate; metapleuron densely and finely punctulate, without transverse wrinkles, densely pilose; juxtacoxal carina represented by very short ridges. Fore tibia weakly swollen. Mesal lobe of t4 with 3–4 bristles. Hind coxa with weak punctures separated by about their own diameter.  
PROPODEUM: 1.15 × as long as wide, mat, moderately pilose; anterior area moderately punctate; spiracle elliptic, SWL 1.6; anterior transverse carina medially slightly arched forwards. Propodeal wrinkles moderately strong, closely spaced, mostly complete, anteriorly strongly curved, posteriorly somewhat irregular; posterior transverse carina entirely absent.  
WINGS: Fore wing vein 1-Rs+M distinctly sinuous, with bulla placed on basal 0.25; crossvein 1m-cu more or less uniformly curved, limit between 1m-cu and 1-Rs+M more or less traceable; vein 1M+Rs anteriorly straight, posteriorly curved; fore wing crossvein 1 cu-a basad of 1M+Rs by 0.21 of its own length; vein 2Cua 0.57 × as long as crossvein 2cu-a; bulla of crossvein 2m-cu placed on midlength; cell 1+2Rs small, APH 0.67, pentagonal, about as high as wide, AWH 0.91; crossvein 3r-m fully spectral, 2r-m and 3r-m distinctly convergent, about same length; vein 3-M about as long as 2-M; 4-Rs distinctly sinuous; 4-M tubular, slightly curved backwards. Hind wing vein 1- M forming straight angle with vein Cua; vein 2-Rs tubular, apically spectral, reaching wing margin; HW1C 1.34; vein Cub distinctly convex on posterior half, forming straight angle with Cua; vein 2-1A reaching 0.83 of distance to posterior wing margin.  
METASOMA: First tergite moderately long, about 0.41 × as long as T2–8, approximately cylindrical, ventrolaterally rounded, dorsally sparsely pilose, laterally moderately pilose; T1LW 0.27; T1WW 1.61; spiracle on 0.51 of its length, slightly prominent; median depression elongate, very shallow; lateral and median posterior depressions absent; ventrolateral carina absent. T2LW 1.37; T2WW 2.56; thyridium longer than wide, without small circular depression just behind it; T2–8 covered with small, shallow foveae, densely and uniformly pilose. OST 0.68; ovipositor slender, straight, basally cylindric, apically slightly depressed; dorsal valve without ridges; ventral valve apex with 11 teeth, apical teeth progressively more closely spaced; surface anterior to first tooth rugulose.  
 Color. Head black, mesosoma mostly yellow and blackish metasoma brown and pale yellow. Head: black; clypeus, mandible except apex, mouthparts, malar space, supra-clypeal area, scape ventrally and complete orbital band, pale yellow (223,198,101); scape dorsally, pedicel and flagellum, dark brown; f10–15 entirely white, f9 and f16 partially white. Mesosoma: mostly yellow, turning from light yellow (233,218,150) dorsally to pale orange (220,151,057) ventrally; postero-ventral mark covering 0.3 of pronotum, posterior corner of mesopleuron, most of epicnemium ventrally, anterior portion of mesopleuron just dorsal to sternaulus, transverse sulcus laterally and area over anterior transverse carina of propodeum, black; mesoscutum mostly black with sparse brownish areas, central subcircular yellow spot and yellow horizontal dashes at lateral margin; axillar carinae and axillary through, brownish; anterior area of propodeum brown (115,075,050); anterior 0.2 of posterior area and apical subcircular mark on propodeum, bright orange; fore leg pale yellow, turning to light fuscous at tarsus; mid coxa, tibia and tarsus pale yellow; mid trochanters and femur bright orange; hind coxa, trochanters and femur bright orange, apically darker; posterior spot at hind coxa yellow; apical 0.7 of hind tibia and basal 0.3 of t1, whitish; remainder of tibia and tarsus, blackish. Metasoma: brown; anterior 0.5 of T1, light yellow; T1–8 and S2–6 with posterior whitish stripes, progressively wider towards posterior tergites.   
 Male. Unknown.   
 Comments. Similar to M. nigriangulatus sp. nov., from which it can be differentiated by having pronotum with distinct posterior blackish mark (vs. entirely yellowish); anterior area of propodeum mostly blackish (vs. entirely orange); transverse sulcus of propodeum moderately wide, 0.62 × as long as anterior area (vs. very wide, 1.20 × as long as anterior area); hind femur entirely orange, though apically darker (vs. blackish on apical 0.4); and fore wing veins 2r-m and 3r-m distinctly convergent (vs. subparallel).   
 Biology. Reared from a nest of unidentified Pompilidae (labeled as “ Psammocharidae ”).   
 Etymology. From the Greek elektor, meaning “the beaming sun”; in reference to the somewhat golden-orange color tones of the mesosoma.   
 Material examined. Holotype ♀ from BRAZIL, Minas Gerais, Belo Horizonte, Estação Ecológica UFMG, 21.VIII.1992, HRPimenta, “67-A(26.VI.1992) // ex. Psammocharidae ” (UFES). Pinned. Tip of left antenna, both mid t5 and right hind t2–5 missing; otherwise in good shape.   
 Distribution. Recorded only from the type locality, in southeastern Brazil (Fig. 323).
description: Published as part of Santos, Bernardo F. & Aguiar, Alexandre P., 2013,  Phylogeny and revision of  Messatoporus  Cushman (Hymenoptera, Ichneumonidae, Cryptinae), with descriptions of sixty five new species , pp. 1-284 in Zootaxa 3634 (1) on pages 116-117, DOI: 10.11646/zootaxa.3634.1.1, http://zenodo.org/record/5262081