Messatoporus latissulcus 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 : 137-138

Messatoporus latissulcus Santos , sp. nov.

( Figs 47 , 335 )

Female. Fore wing 8.72 mm. HEAD: Mandible with moderately sparse and long hairs; MLW 1.64; MWW 0.42; dorsal tooth in front view projected upwards, much longer than ventral tooth; ventral tooth triangular. MSM 0.25. Clypeus basally strongly convex, emarginated in its mid-length, more or less triangular, centrally concave; CHW 2.2; CWW 2.5; apical area medially concave, laterally slightly projected, its margin regular, not raised. Antenna with 24 flagellomeres; flagellum uniform; apex of apical flagellomere about as wide as base, not distinctly tapered. Supra-antennal area shiny, impunctate, not striate near antennal sockets, ventrally distinctly concave, without 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, not distinctly wrinkled; epomia almost indistinct, distinct only after diverging from pronotal collar, short, ending far from dorsal margin of pronotum, after diverging from pronotal collar approximately straight. Mesoscutum moderately and uniformly convex, ovoid, 1.22 × as long as wide, glabrate, shiny, impunctate; notaulus reaching about 0.83 of mesoscutum length, moderately impressed, surface over notaulus not wrinkled; scuto-scutellar groove moderately deep, without wrinkles. Subalar ridge weakly projected; epicnemial carina reaching about 0.6 of distance to subalar ridge, distinctly sinuous; sternaulus complete but weak, strongly sinuous, smooth; scrobe very shallow; mesopleural suture with vestigial longitudinal wrinkles. Mesosternum medially with short transverse wrinkles; median portion of posterior transverse carina of the mesothoracic venter moderately long, slightly arched forwards. Transverse sulcus at base of propodeum very wide, about 0.81 × as long as anterior area of propodeum, impunctate; metapleuron entirely coriarious, without transverse wrinkles, sparsely pilose; juxtacoxal carina absent. Fore tibia weakly swollen. Mesal lobe of t4 with a distinct cluster of stout bristles. Hind coxa punctate-coriarious.

PROPODEUM: 1.16 × as long as wide, shiny, glabrate; anterior area almost impunctate; spiracle elongate, SWL 5.14; anterior transverse carina medially straight. Propodeal wrinkles weak, 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 curved; fore wing crossvein 1 cu-a basad of 1M+Rs by 0.42 of its own length; vein 2Cua 0.32 × as long as crossvein 2cu-a; bulla of crossvein 2m-cu placed on midlength; cell 1+2Rs small, APH 0.72, pentagonal, about as high as wide, AWH 0.99; crossvein 3r-m absent; vein 3-M distinctly longer than 2-M; 4-Rs distinctly sinuous; 4- M semi-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 1.07; vein Cub almost straight, very slightly convex, forming distinctly obtuse angle with vein Cua (not curved); vein 2-1A reaching 0.86 of distance to posterior wing margin.

METASOMA: First tergite moderately long, about 0.4 × as long as T2–8, strongly depressed, ventrolaterally angled, dorsally glabrate, laterally sparsely pilose; T1LW 3.87; T1WW 1.77; spiracle on 0.5 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 1.45; T2WW 2.3; thyridium longer than wide, without small circular depression just behind it; T2–8 covered with small, shallow foveae, densely and uniformly pilose. OST 1.45; ovipositor slender, straight, basally cylindric, apically slightly depressed; dorsal valve with three moderately strong ridges; ventral valve apex with 7 teeth, 1st, 2nd and 3th widely spaced; surface anterior to first tooth rugulose.

Color. Head black, mesosoma orange, metasoma orange, black and whitish. Head: black; f6–12 entirely white, 5 and 13 partially white; scape ventrally, clypeus, mandible borders, palpi, orbital band distinct only at supraantennal area, whitish. Mesosoma: orange (216,113,044); fore and mid legs gradually lighter towards apex; hind tibia yellow; hind tarsus whitish. Metasoma: T1 orange, posteriorly marked with small blackish spot; anterior 0.25 of T2 orange, posterior 0.1 whitish, medially black; T3–6 black with posterior whitish stripe; T7–8 entirely black.

Male. Unknown.

Comments. More similar to M. convexus sp. nov., from which it can be isolated mainly by having pronotum, mesoscutum and postscutellum entirely bright orange (vs. mostly black); scutellar carina, scutellum, tegula and subalar ridge orange (vs. mostly or entirely whitish); mesoscutum moderately convex (vs. strongly convex); sternaulus complete (vs. medially indistinct); and median portion of posterior transverse carina of the mesothoracic venter moderately long (vs. indistinct).

Biology. Unknown.

Etymology. From the Latin words latus, meaning “wide”, and sulcus, meaning “furrow”, “groove”; in reference to the very long transverse sulcus at base of propodeum.

Material examined. Holotype ♀ from PERU, Pozuzo , SBHoffmans ( ZMHB). Pinned. Both mid t5 and hind t3–5 missing; otherwise in good shape.

Distribution. Recorded only from the type locality, in central Peru ( Fig. 335 ).

Figures

FIGURES 46–50. Lateral view. 46, M. paralissonotus. 47, M. latissulcus*. 48, M. convexus*. 49, M. albiaterartus*. 50, M. nigriscutus.

FIGURES 329–336. Distribution maps for species of Messatoporus. 329, M. igneus. 330, M. interceptus. 331, M. jalapa. 332, M. keraiopetalus. 333, M. kerzhneri. 334, M. laevilatus. 335, M. latissulcus. 336, M. lissonotus.

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.