Messatoporus pleuriflavus 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 : 173-174

Messatoporus pleuriflavus Santos , sp. nov.

( Figs 58 , 357 )

Female. Fore wing 8.06 mm. HEAD: Mandible densely covered with long hairs; MLW 1.81; MWW 0.31; dorsal tooth in front view projected upwards, much longer than ventral tooth; ventral tooth triangular. MSM 0.16. Clypeus basally convex, apically abruptly flattened, centrally straight; CHW 2.21; CWW 2.29; apical area medially concave, laterally slightly projected, its margin very sharp, raised. Supra-antennal area shiny, scarcely punctate, distinctly 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 narrow, gena regular (as in Fig. 260 ).

THORAX: Pronotum sparsely pilose, shiny, finely punctate, 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 distinctly curved. Mesoscutum moderately and uniformly convex, subcircular, 1.2 × as long as wide, densely covered with short hairs, shiny, densely punctulate; notaulus reaching about 0.78 of mesoscutum length, moderately impressed, surface over notaulus with weak and short transverse wrinkles; scuto-scutellar groove moderately deep, without wrinkles. Subalar ridge moderately projected; epicnemial carina reaching about 0.7 of distance to subalar ridge, irregular; sternaulus complete but weak, weakly 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 short and almost indistinct, straight. Transverse sulcus at base of propodeum very wide, about 0.92 × as long as anterior area of propodeum, posteriorly with longitudinal wrinkles; metapleuron minutely rugulose, without transverse wrinkles, densely pilose; juxtacoxal carina absent. Fore tibia distinctly swollen. Mesal lobe of t4 with a distinct cluster of stout bristles. Hind coxa with weak punctures separated by more than their own diameter.

PROPODEUM: Mat, sparsely pilose; anterior area densely punctate; spiracle elongate, SWL 4.29; anterior transverse carina medially slightly arched forwards. Propodeal wrinkles weak, closely spaced, mostly complete but sometimes medially irregular, distinctly curved backwards; 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 0.33 of its own length; vein 2Cua 0.51 × as long as crossvein 2cu-a; bulla of crossvein 2m-cu placed on midlength; cell 1+2Rs small, APH 0.59, pentagonal, about as high as wide, AWH 1.05; crossvein 3r-m fully spectral, 2r-m and 3r-m subparallel, 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 straight angle with vein Cua; vein 2-Rs tubular, apically spectral, reaching wing margin; HW1C 1.62; vein Cub distinctly convex on posterior half, forming distinctly obtuse angle with vein Cua (basally curved); vein 2-1A reaching 0.92 of distance to posterior wing margin.

METASOMA: First tergite moderately long, about 0.44 × as long as T2–8, somewhat depressed, ventrolaterally rounded, dorsally glabrate, laterally moderately pilose; T1LW 3.41; T1WW 1.86; spiracle on 0.47 of its length, slightly 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 1.12; T2WW 2.08; thyridium longer than wide, without small circular depression just behind it; T2–8 covered with small, shallow foveae, densely and uniformly pilose. OST 0.88; ovipositor moderately stout, straight, 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, meso and metasoma black and light orange. Head: black; clypeus, mouthparts, supra-clypeal area, ventral spot at scape and complete orbital band, light yellow (234,216,116); scape and pedicel dorsally dark brown; f7–12 entirely white, f6 and f13 mostly white. Mesosoma: mostly light yellow; pronotum except collar, mesoscutum except subcircular spot, scuto-scutellar groove, base of scutellum, axillar carinae medially, postscutellum, epicnemium, area on mesopleuron just ventral subalar ridge, small spot at scrobe and propodeum except arc-shaped mark, dark brown (050,042,039); fore leg light yellow, darker apically; mid leg light yellow, tarsus progressively darker, t2–4 fuscous; hind coxa, trochanters and femur light orange, tibia bright yellow, tarsus whitish. Metasoma: dark brown; T1 anterior 0.4 and posterior 0.2 light yellow; T2–8 with posterior light yellow stripe; S1–6 light yellow.

Male. Unknown.

Comments. Somewhat similar to M. atlancitus sp. nov., but readily differentiated from that species by the mid and hind coxae entirely orange (vs. yellowish and black); second trochanter and femur bright orange (vs. dark brown); orbital band complete (vs. shortly interrupted at dorsal margin of eye); propodeal wrinkles weak, distinctly curved backwards (vs. moderately strong to strong, mostly slightly curved or somewhat sinuous); epomia distinct only after diverging from collar (vs. distinct); and ovipositor dorsal valve with four moderately strong ridges (vs. five).

Biology. Unknown.

Etymology. From the Latin words flavus, meaning “yellow”, and pleura; from the almost entirely yellow meso- and metapleuron.

Material examined. Holotype ♀ from BOLIVIA, Coroico ( ZMHB). Pinned; pin bent on midlength. Both antennae missing; otherwise in good shape.

Distribution. Recorded only from the type locality, in western Bolivia ( Fig. 357 ).

Figures

FIGURES 56–60. Lateral view. 56, M. tenuiorbis*. 57, M. maculiscus*. 58, M. pleuriflavus*. 59, M. nigriangularus*. 60, M. elektor*.

FIGURES 353–360. Distribution maps for species of Messatoporus. 353, M. pallidus. 354, M. paradoxus. 355, M. paraguayensis. 356, M. paralissonotus. 357, M. pleuriflavus. 358, M. propodeator. 359, M. rufator. 360, M. semialbiventris.

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.