Messatoporus aurantius Santos, 2013

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 : 76-77

Messatoporus aurantius Santos , sp. nov.

( Figs 37 , 304 )

Female. Fore wing 8.53 mm. HEAD: Mandible densely covered with long hairs; MLW 1.86; MWW 0.48; dorsal tooth in front view projected upwards, much longer than ventral tooth; ventral tooth triangular. MSM 0.18. Clypeus basally convex, apically abruptly flattened, centrally concave; CHW 2.43; CWW 1.87; apical area medially straight, laterally with distinct triangular lobes, its margin very sharp, raised. Antenna with 23 flagellomeres; flagellum uniform; apex of apical flagellomere much narrower than base, distinctly tapered. Supra-antennal area shiny, scarcely punctate, not striate near antennal sockets, ventrally very weakly concave, with slight median line. Occipital carina uniformly curved, fading out at distance about as long as basal width of mandible from the hypostomal carina. Temple and gena narrow, gena regular (as in Fig. 260 ).

THORAX: Pronotum glabrous, shiny, impunctate, wrinkles at posterior margin vestigial; epomia very 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, 1.21 × as long as wide, sparsely pilose, shiny, impunctate; notaulus reaching about 0.76 of mesoscutum length, weakly impressed, surface over notaulus not wrinkled; scuto-scutellar groove shallow, without wrinkles. Subalar ridge weakly projected; epicnemial carina reaching about 0.6 of distance to subalar ridge, distinctly sinuous; sternaulus complete but weak, medially indistinct, strongly sinuous, with vestigial vertical wrinkles; scrobe moderately deep; mesopleural suture ventrally with weak longitudinal wrinkles, wrinkles dorsally vestigial. Mesosternum medially with short transverse wrinkles; median portion of posterior transverse carina of the mesothoracic venter indistinct. Transverse sulcus at base of propodeum very wide, about 0.82 × as long as anterior area of propodeum, medially with very weak transverse striation; metapleuron moderately punctate, without transverse wrinkles, dorsally sparsely pilose, ventrally moderately 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 weak punctures separated by about their own diameter.

PROPODEUM: 1.25 × as long as wide, shiny, sparsely pilose; anterior area almost impunctate; spiracle elongate, SWL 4.00; anterior transverse carina medially slightly arched forwards. Propodeal wrinkles moderately strong, very closely spaced, mostly complete, 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 more or less traceable; vein 1M+Rs anteriorly straight, posteriorly weakly curved; fore wing crossvein 1 cu-a basad of 1M+Rs by 0.5 of its own length; vein 2Cua 0.26 × as long as crossvein 2cu-a; bulla of crossvein 2m-cu placed on midlength; cell 1+2Rs small, APH 0.66, pentagonal, about as high as wide, AWH 0.88; crossvein 3r-m fully spectral (check), 2r-m and 3r-m distinctly convergent, about same length; vein 3-M about as long as 2-M; 4-Rs straight, apically slightly upcurved; 4-M semi-spectral, irregular. Hind wing vein 1-M forming distinctly obtuse angle with vein Cua; vein 2-Rs tubular, apically spectral, reaching wing margin; HW1C 1.16; vein Cub distinctly convex on posterior half, forming distinctly obtuse angle with vein Cua (basally curved); vein 2-1A reaching 0.93 of distance to posterior wing margin.

METASOMA: First tergite moderately long, about 0.38 × as long as T2–8, strongly depressed, ventrolaterally rounded, dorsally glabrate, laterally densely pilose; T1LW 3.54; T1WW 1.58; spiracle on 0.52 of its length, distinctly prominent; median depression elongate, very shallow; lateral and median posterior depressions absent; ventrolateral carina absent, but traceable as limit between lateral and ventral portions. T2LW 1.66; T2WW 1.44; thyridium longer than wide, without small circular depression just behind it; T2–8 covered with small, shallow foveae, densely and uniformly pilose. OST 1.2; ovipositor moderately stout, slightly upcurved, basally cylindric, apically distinctly depressed; dorsal valve with four moderately strong ridges; ventral valve apex with 10 teeth, apical teeth progressively more closely spaced; surface anterior to first tooth rugulose.

Color. Head black, meso and metasoma orange. Head: black; f8–12 entirely white, 13 partially white; scape ventrally ferruginous; clypeus, mandible except apex, palpi, supra-clypeal area, orbital band distinct only at supraantennal area and near base of mandible, whitish (218,191,109). Mesosoma: orange (194,100,050); fore and mid legs gradually lighter towards apex; hind tibia yellow; hind tarsus whitish. Metasoma: orange, T3 marked with fuscous at median portion.

Male. Unknown.

Comments. Similar to M. longicaudis sp. nov., from which it can be differentiated mainly by having shorter ovipositor, 1.20 × as long as hind tibia (vs, 2.50), fore tibia distinctly swollen (vs, not swollen), propodeum in lateral view rounded, subspherical (vs. somewhat flattened), with very closely spaced wrinkles (vs. moderately closely spaced), fore wing crossveins 2r-m and 3r-m subparallel (vs. distinctly convergent), and vein 3-M about as long as 2-M (vs. distinctly longer). It is also similar to M. apertus and M. amarelus , from which it can be isolated by the ovipositor slightly upcurved (vs. straight), hind tibia entirely yellowish (vs. apically blackish), epomia distinct only after diverging from collar (vs. complete) and epicnemial carina reaching about 0.6 of distance to subtegular ridge (vs. complete).

Biology. Unknown.

Etymology. From the Latin aurantium, meaning “citrus” or “orange”; in reference to its almost entirely orange body.

Material examined. Holotype ♀ from BRAZIL, Paraná, Guarapuava, Estação de águas Santa Clara , 10.XI.1986, Malaise trap, PROFAUPAR ( DZUP). Pinned. In good shape.

Distribution. Recorded only from the type locality, in southern Brazil ( Fig. 304 ).

Figures

FIGURES 36–40. Lateral view. 36, M. apertus. 37, M. aurantius*. 38, M. longicaudis*. 39, M. amarelus. 40, M. longitergus*.

FIGURES 297–304. Distribution maps for species of Messatoporus. 297, M. antennator 298, M. apertus. 299, M. apiopharkis. 300, M. arcuatus. 301, M. argentinus. 302, M. atlanticus. 303, M. atrifoveus. 304, M. aurantius.

FIGURES 260–271. 260–261, Gena, lateral. 260, M. longicaudis*. 261, M. compressicornis. 262–264, Antenna. 262, M. tibiator. 263, M. compresscornis. 264, M. antennator, male. 265–266, Hind t4. 265, M. paeneater*. 266, M. nigriscutus*. 267–271, Metasoma and ovipositor. 267, M. opacus*. 268, M. discoidalis. 269, M. longicaudis*. 270, M. convexus. 271, M. townesi.