Messatoporus mesosternalis Kasparyan & Ruíz 2005, 2008

Santos, Bernardo F. & Aguiar, Alexandre P., 2013, <strong> Phylogeny and revision of <em> Messatoporus </ em> Cushman (Hymenoptera, Ichneumonidae, Cryptinae), with descriptions of sixty five new species </ strong>, Zootaxa 3634 (1), pp. 1-284 : 152-154

publication ID	https://doi.org/ 10.11646/zootaxa.3634.1.1
publication LSID	lsid:zoobank.org:pub:81906FA2-FB3C-4F02-9AF9-449BC73F3BEE
persistent identifier	https://treatment.plazi.org/id/3629866A-FF09-2EDE-B8BF-FA41FCEFB7DD
treatment provided by	Felipe
scientific name	Messatoporus mesosternalis Kasparyan & Ruíz 2005
status

Treatment

Messatoporus mesosternalis Kasparyan & Ruíz 2005 View in CoL

( Figs 103 View FIGURES 101–105 , 239 View FIGURES 236–241 , 345 View FIGURES 345–352 )

* Messatoporus mesosternalis Kasparyan & Ruíz 2005: 105 View in CoL , 118. Description, distribution, keyed. Holotype ♀ (UATM, not examined). Type data: México, Tamaulipas, Gómes Farías, Alta Cima , 900 m, Malaise trap, 7–14.X.2000, D.R. Kasparyan.

Messatoporus mesosternalis: Kasparyan & Ruíz 2008: 308 View in CoL , 330–331, 373. Description, distribution, figure, keyed.

Female. Fore wing 7.92 mm. HEAD: Mandible densely covered with long hairs; MLW 1.66; MWW 0.34; dorsal tooth in front view projected upwards, much longer than ventral tooth; ventral tooth somewhat rhomboid. MSM 0.23. Clypeus almost entirely flattened, centrally concave; CHW 2.21; CWW 2.34; apical area medially concave, laterally slightly projected, its margin very sharp, raised. Antenna with 21 flagellomeres; flagellum strongly flattened and compressed on apical 0.3; apex of apical flagellomere about as wide as base, not distinctly tapered. Supra-antennal area shiny, scarcely punctate, not striate near antennal sockets, ventrally and around ocelli slightly concave, medially with a distinct depression but without a distinct line. Occipital carina dorsally acuminate, 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 View FIGURES 260–271. 260–261 ).

THORAX: Pronotum glabrous, shiny, impunctate, with weak and short wrinkles at ventral half of posterior margin; epomia weak, distinct only after diverging from pronotal collar, short, ending far from dorsal margin of pronotum, after diverging from pronotal collar approximately straight. Mesoscutum strongly and uniformly convex, subcircular, 1.11 × as long as wide, glabrate, shiny, impunctate; notaulus reaching about 0.69 of mesoscutum length, weakly impressed, surface over notaulus not wrinkled; scuto-scutellar groove moderately deep, without wrinkles. Subalar ridge moderately 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 moderately deep; mesopleural suture with weak longitudinal wrinkles along entire length. Mesosternum medially with short transverse wrinkles; median portion of posterior transverse carina of the mesothoracic venter short and almost indistinct, distinctly arched forwards. Transverse sulcus at base of propodeum moderately wide, about 0.56 × as long as anterior area of propodeum, impunctate; metapleuron scarcely punctate, without transverse wrinkles, dorsally moderately pilose, ventrally densely pilose; juxtacoxal carina represented by very short ridges. Fore tibia distinctly swollen. Mesal lobe of t4 with a distinct cluster of stout bristles. Hind coxa with moderately strong punctures separated by more than their own diameter.

PROPODEUM: 1.11 × as long as wide, shiny, sparsely pilose; anterior area almost impunctate; spiracle elliptic, SWL 2.83; anterior transverse carina medially straight. Propodeal wrinkles anteriorly faint, posteriorly moderately strong, closely spaced, mostly incomplete and overlapped, with some disperse complete wrinkles, mostly slightly curved or somewhat sinuous; 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 clearly traceable; vein 1M+Rs anteriorly straight, posteriorly curved; fore wing crossvein 1 cu-a basad of 1M+Rs by 0.49 of its own length; vein 2Cua 0.52 × as long as crossvein 2cu-a; bulla of crossvein 2m-cu placed on midlength; cell 1+2Rs small, APH 0.63, subquadratic, distinctly higher than wide, AWH 0.79; crossvein 3r-m fully spectral, 2r-m and 3r-m subparallel, about same length; vein 3-M distinctly longer than 2-M; 4-Rs straight, apically slightly upcurved; 4-M spectral, slightly curved backwards. Hind wing vein 1-M forming straight angle with vein Cua; vein 2-Rs tubular, apically spectral, reaching wing margin; HW1C 1.53; vein Cub distinctly convex on posterior half, forming straight angle with Cua; vein 2-1A reaching 0.87 of distance to posterior wing margin.

METASOMA: First tergite short, about 0.31 × as long as T2–8, somewhat depressed, ventrolaterally angled, dorsally sparsely pilose, laterally moderately pilose; T1LW 3.45; T1WW 1.66; spiracle on 0.55 of its length, distinctly prominent; median depression elongate, very shallow; lateral and median posterior depressions absent; ventrolateral carina absent. T2LW 1.18; T2WW 1.92; thyridium about as long as wide, without small circular depression just behind it; T2–8 smooth between punctures, laterally moderately pilose, dorsally T2–3 and 8 glabrate, T4–7 sparsely to moderately pilose. OST 1.32; ovipositor moderately stout, straight, basally cylindric, apically slightly depressed; dorsal valve with four weak ridges; ventral valve apex with 9 teeth, apical teeth progressively more closely spaced; surface anterior to first tooth rugulose.

Color. Head, mesosoma and metasoma black and yellow. Head: black; clypeus, mandible except apex and borders, mouthparts, supraclypeal area except small lateral marks and complete orbital band, pale yellow (228,220,141); f5–9 entirely white; f10 almost entirely white, f11–12 partially white. Mesosoma: black; pronotal collar, propleuron ventrally, subcircular spot on mesoscutum, scutellum, axillar carinae, postscutellum, tegula, subalar ridge, central mark on mesopleuron, dorsal division of metapleuron, posterior 0.5 of metapleuron and large trapezoidal marks at posterior area of propodeum, pale yellow; mesal face of fore and mid coxae with large blackish mark, mid coxa with small apical brown spot; all legs apically to first trochanter bright yellow, whitish towards apex; fore and mid femora with longitudinal blackish stripes at posterior face; fore and mid t5 dark brown; hind coxa anteriorly black, posteriorly pale yellow with narrow lateral blackish line; first trochanter ventrally black, second trochanter almost entirely blackish; ventral face and apical 0.15 of dorsal face of hind femur black; extreme base of hind tibia marked with blackish. Metasoma: black; T1–8 with posterior pale yellow stripes, expanding laterally at T2–8; S2–6 brown on basal 0.5, posteriorly pale yellow.

Male. Not examined. According to Kasparyan and Ruíz (2008), similar to female, except for the following: fore wing 5.00–6.00 mm long; antenna with 23–24 flagellomeres; propleuron, fore and mid coxae and trochanters completely whitish; whitish central spot on mesopleuron connected with whitish color at fore coxa; mesepimeron whitish; black portion at posterior area of propodeum weak, not connected with anterior black portion; fore and mid femora not ventrally black; hind femur reddish, with apical 0.2 black; hind tibia yellowish with apical 0.35 blackish; tibial spurs and basal 0.4 of t1 blackish; T2 about 3.0 × as long as maximum width.

Variation. Fore wing 7.92–9.53 mm long. Specimen from Fortín de las Flores with yellowish spots on mesosternum ventrally to sternaulus and median anterior portion of transverse sulcus of propodeum, without narrow blackish stripe at hind coxa, and with ventrolateral yellowish mark on apical 0.4 of T1. Specimen from Puntarenas with longitudinal black mark on propodeum very narrow anteriorly. posterior face of hind coxa sometimes without narrow blackish stripe.

Comments. Messatoporus mesosternalis is part of a group of five very close species, all very similar although not forming a strictly monophyletic group (see Analysis 2). Along with the recovered synapomorphies, species of that group are generally similar in size and share features like body very shiny and scarcely punctate to almost impunctate; pronotum mostly black, yellow or whitish only at collar, but not at dorsal margin (which is unusual; species with yellow collar usually do also have the dorsal margin of pronotum marked with yellowish); mesosternum entirely black; hind tibia entirely bright yellow or blackish only on apical 0.2; T1 short, 0.31–0.38 × as long as T2–8, with posterior yellow or whitish stripe, anteriorly entirely black except in M. basiflavus sp. nov.; and ovipositor dorsal valve with four ridges. Most body proportions are also similar.

Among these species, M. mesosternalis can be readily identified by its unique color pattern at hind femur, which is mostly black, dorsally bright yellow on basal 0.7. Messatoporus occidentalis sp. nov. and M. basiflavus can be readily differentiated from M. mesosternalis by the mostly or entirely orange hind coxa, trochanters and femur, and by having the yellow mark on propodeum distinctly arc-shaped (vs. posterior area of propodeum with distinctly separated yellow marks, black area T-shaped). In M. semiaurantigaster , the yellow mark on the propodeum is arc-shaped, but very narrow medially; it can be promptly isolated from M. mesosternalis by the T4–8 entirely bright orange, orbital band shortly interrupted at dorsal margin of eye and hind tibia blackish on apical 0.2. Messatoporus orientalis sp. nov. is the most similar to M. mesosternalis , from which it can be separated by having orbital band incomplete, hind femur entirely dark brown or blackish; crossvein 3r-m absent (vs. present, though spectral); T2 with circular depressions just posteriorly to thyridium (vs. without depressions); thyridium longer than wide (vs. about as wide as high); and yellow marks on propodeum smaller.

Biology. Unknown.

Material examined. 3 ♀. 1 ♀ from MEXICO, Veracruz, Fortin de las Flores, Sumidero , Planta de la Cerveceria, Ing. Daniel Rabago Res, 760–915 m, 12.VII.1968, Malaise trap, HVWeens Jr . 1 ♀ from COSTA RICA, Puntarenas, Prov. Piedras Blancas, 23–26.VII.1981, HVWeens Jr. & GBEdwards ( FSCA) . 1 ♀ from COSTA RICA, Alajuela, Pena Blanca, 700 m, 7.VII.1987, ECruz ( AEIC) .

Distribution. Northeastern Mexico to Costa Rica ( Fig. 345 View FIGURES 345–352 ).