Messatoporus unimaculatus 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 : 200-201

Messatoporus unimaculatus Santos , sp. nov.

( Figs 98 , 189 , 372 )

Female. Fore wing 10.2 mm. HEAD: Mandible densely covered with long hairs; MLW 2.19; MWW 0.35; dorsal tooth in front view projected upwards, long, ventral tooth distinct only as a very short lobe. MSM 0.48. Clypeus basally convex, apically abruptly flattened, centrally concave; CHW 2.36; CWW 2.20; apical area medially concave, laterally with distinct triangular lobes, its margin very sharp, raised. Antenna with 27 flagellomeres; flagellum uniform; apex of apical flagellomere much narrower than base, distinctly tapered. Supra-antennal area mat, coriarious-punctate, distinctly striate near antennal sockets, ventrally and around ocelli distinctly concave, median line distinguishable only as a weakly smoother area. Occipital carina uniformly curved, fading out at distance about as long as basal width of mandible from the hypostomal carina. Temple and gena moderately wide, gena regular (as in Fig. 260 ).

THORAX: Pronotum sparsely pilose, shiny, densely punctate, ventrally with strong wrinkles; epomia moderately strong, complete, moderately long, ending close to dorsal margin of pronotum, after diverging from pronotal collar distinctly curved. Mesoscutum moderately and uniformly convex, ovoid, 1.27 × as long as wide, densely covered with short hairs, shiny, densely punctate; notaulus reaching about 0.79 of mesoscutum length, moderately impressed, surface over notaulus with weak and short transverse wrinkles; scuto-scutellar groove moderately deep, with distinct longitudinal wrinkles. Subalar ridge moderately projected; epicnemial carina reaching about 0.85 of distance to subalar ridge, almost straight; sternaulus moderately strong, wider on posterior apex, strongly sinuous, with weak vertical wrinkles; scrobe moderately deep; mesopleural suture with strong longitudinal wrinkles along entire length. Mesosternum medially with short transverse wrinkles; median portion of posterior transverse carina of the mesothoracic venter short, slightly arched forwards. Transverse sulcus at base of propodeum very wide, about 0,78 × as long as anterior area of propodeum, with strong longitudinal wrinkles; metapleuron punctate-rugulose, covered with the same wrinkling of propodeum, however less regular, sparsely pilose; juxtacoxal carina represented by very short ridges. Fore tibia distinctly swollen. Mesal lobe of t4 with 3–4 bristles. Hind coxa entirely coriarious.

PROPODEUM: 1.07 × as long as wide, shiny, moderately pilose; anterior area scarcely punctate, medially coriarious; spiracle elongate, SWL 3.80; anterior transverse carina medially slightly arched forwards. Propodeal wrinkles anteriorly weak, posteriorly strong, closely spaced, mostly complete, anteriorly curved, posteriorly somewhat irregular; posterior transverse carina distinct as moderately strong crests.

WINGS: Fore wing vein 1-Rs+M distinctly sinuous, with bulla placed on basal 0.4; crossvein 1m-cu more or less uniformly curved, limit between 1m-cu and 1-Rs+M clearly traceable; vein 1M+Rs anteriorly straight, posteriorly slightly curved; fore wing crossvein 1 cu-a basad of 1M+Rs by 0.29 of its own length; vein 2Cua 0.54 × as long as crossvein 2cu-a; bulla of crossvein 2m-cu placed mostly on posterior half; cell 1+2Rs small, APH 0.71, pentagonal, about as high as wide, AWH 1.13; crossvein 3r-m fully spectral, 2r-m and 3r-m distinctly convergent, about same length; vein 3-M distinctly shorter than 2-M; 4-Rs very weakly sinuous; 4-M semi-spectral, weakly sinuous. Hind wing vein 1-M forming distinctly obtuse angle with vein Cua; vein 2-Rs tubular, apically nebulous, reaching wing margin; HW1C 1.91; vein Cub distinctly convex on posterior half, forming distinctly obtuse angle with vein Cua (basally curved); vein 2-1A reaching 0.94 of distance to posterior wing margin.

METASOMA: First tergite moderately long, about 0.41 × as long as T2–8, approximately cylindrical, ventrolaterally rounded, dorsally glabrate, laterally moderately pilose; T1LW 4.20; T1WW 1.51; spiracle on 0.49 of its length, slightly prominent; median depression absent; lateral and median posterior depressions absent; ventrolateral carina absent, but traceable as limit between lateral and ventral portions. T2LW 1.32; T2WW 2.32; thyridium longer than wide, without small circular depression just behind it; T2–8 coriarious, densely and uniformly pilose. OST 0.60; 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 very weakly rugulose.

Color. Head, mesosoma and metasoma black and pale to bright yellow. Head: black; clypeus, basal half of mandible, mouthparts, supra-clypeal area and complete orbital band, light yellow (222,194,116); f8–12 entirely whitish, f7 and f13 partially whitish. Mesosoma: black; collar, posterior 0.8 of dorsal margin of propodeum, Ushaped mark at mesoscutum, scutellar carina, scutellum, subalar ridge, medially narrow central mark on mesopleuron, dorsal division of metapleuron, posterior 0.6 of metapleuron and almost connected ovoid lateral marks on propodeum, light yellow; fore and mid coxae and trochanters pale yellow, trochanters with basal brown marks; fore and mid femora and tibiae deep yellow, femora with dorsal brown stripe, tibiae with ventral brown stripe on basal 0.4; fore and mid tarsi changing from dark yellow basally to fuscous apically; hind coxa anteriorly black, posteriorly pale yellow; first hind trochanter basally black, apically pale yellow, second one almost entirely blackish; hind femur light orange (215,116,052), basal and apical 0.25 (dorsally basal mark reaching 0.3) blackish; extreme base and apex of hind tibia blackish; remainder of hind tibia deep yellow, hind tarsus changing from deep yellow basally to whitish apically. Metasoma: black; anterior 0.25 of T1 dorsally pale yellow; T1–8 and S1–7 with posterior pale to bright yellow stripes.

Male. Unknown.

Comments. Very similar to M. bimaculatus sp. nov., from which it can be differentiated by having supraclypeal area entirely yellow (vs. female with blackish marks); mesopleuron with a single central yellow mark, though medially narrower (vs. with two separate marks); transverse sulcus of propodeum medially with distinct longitudinal wrinkles (vs. medially asperous, without wrinkles); posterior transverse carina of propodeum distinct as moderately strong sublateral crests (vs. entirely absent); black marks at hind femur extending on basal 0.3 and apical 0.2 (vs. restricted to extreme base and apex) hind tibia except extreme base and apex bright yellow; (vs. mostly blackish, whitish at subapical 0.25).

Biology. Unknown.

Etymology. From the Latin macula, meaning “ spot ”, added to the prefix uni-, meaning “one”; in reference to the single central mark on mesopleuron, as opposed to the very close species M. bimaculatus .

Material examined. Holotype ♀ from COSTA RICA, San Vito de C.B., Las Cruces, 17.VIII–12.IX.1982, 1200 m, BGill ( AEIC). Pinned. In good shape.

Distribution. Recorded only from the type locality in Costa Rica ( Fig. 372 ).

Figures

FIGURES 96–100. Lateral view. 96, M. bennetti*. 97, M. bimaculatus*. 98, M. unimaculatus*. 99, M. tenuissimus*. 100, M. disidens*.

FIGURES 189–197. Propodeum, dorsal view. 189, M. bimaculatus. 190, M. unidentatus*. 191, M. semiaurantigaster. 192, M. occidentalis. 193, M. tibiator. 194, M. dominicanus*. 195, M. jalapa. 196, M. allomeros*. 197, M. mesonotator.

FIGURES 369–376. Distribution maps for species of Messatoporus. 369 M. townesi. 370, M. transversostriatus. 371, M. unidentatus. 372, M. unimaculatus. 373, M. variegatus. 374, M. versicolor. 375, M. xanthogaster. 376, M. zonatus.

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.