Messatoporus albiaterartus 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 : 51-53

Messatoporus albiaterartus Santos , sp. nov.

( Figs 49 , 165 , 240 , 290 )

Female. Fore wing 9.1 mm. HEAD: Mandible densely covered with long hairs; MLW 2.19; MWW 0.35; dorsal tooth in front view projected upwards, much longer than ventral tooth; ventral tooth somewhat rhomboid. MSM 0.29. Clypeus basally convex, apically abruptly flattened, centrally concave; CHW 2.29; CWW 2.64; apical area medially convex, laterally with distinct triangular lobes, its margin very sharp, raised. Antenna with 24 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, impunctate, not striate near antennal sockets, ventrally and around ocelli slightly concave, with slight 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 moderately pilose, shiny, densely punctate, with moderate striation along posterior margin and collar; 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 moderately and uniformly convex, ovoid, 1.27 × as long as wide, densely covered with short hairs, shiny, densely punctulate; notaulus reaching about 0.68 of mesoscutum length, moderately impressed, surface over notaulus with weak and short transverse wrinkles; scuto-scutellar groove deep, with vestigial longitudinal wrinkles. Subalar ridge moderately projected; epicnemial carina reaching about 0.85 of distance to subalar ridge, almost straight; sternaulus moderately strong, wide and shallow at posterior 0.25, weakly sinuous, with weak vertical wrinkles; 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, distinctly arched forwards. Transverse sulcus at base of propodeum moderately wide, about 0.69 × as long as anterior area of propodeum, very weakly rugulose; metapleuron densely punctate, ventrally also rugulose, without transverse wrinkles, densely covered with very short hairs; 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 about their own diameter.

PROPODEUM: 1.31 × as long as wide, shiny, moderately pilose; anterior area moderately punctate; spiracle elongate, SWL 6.25; anterior transverse carina medially slightly arched backwards. Propodeal wrinkles anteriorly faint, posteriorly strong, moderately widely spaced, mostly incomplete and overlapped, with some disperse complete wrinkles, mostly slightly curved or somewhat sinuous; 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 irregular, 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 0.43 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 0.62, subquadratic, distinctly wider than high, AWH 1.28; 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 distinctly sinuous; 4-M spectral, slightly curved backwards. Hind wing vein 1-M forming distinctly obtuse angle with vein Cua; vein 2-Rs tubular, apically spectral, reaching wing margin; HW1C 0.99; vein Cub distinctly convex on posterior half, forming distinctly obtuse angle with vein Cua (basally curved); vein 2-1A reaching 0.83 of distance to posterior wing margin.

METASOMA: First tergite moderately long, about 0.37 × as long as T2–8, somewhat depressed, ventrolaterally rounded, dorsally glabrate, laterally sparsely pilose; T1LW 4.17; T1WW 1.87; spiracle on 0.53 of its length, slightly prominent; median depression elongate, distinct; median posterior depression absent; lateral depressions elongate, very shallow; ventrolateral carina absent, but traceable as limit between lateral and ventral portions. T2LW 1.6; T2WW 1.71; thyridium longer than wide, without small circular depression just behind it; T2–8 minutely coriarious, with small, shallow foveae, moderately and uniformly pilose except glabrate posterodorsal area in T2–3. Ovipositor moderately stout, slightly upcurved, basally cylindric, apically distinctly depressed; dorsal valve with four moderately strong ridges; ventral valve apex with 12 teeth, widely spaced; surface anterior to first tooth rugulose.

Color. Head black, mesosoma black and bright orange, metasoma black and whitish. Head: black; mandible dark brown; palpi ferruginous; clypeus, labrum, supraclypeal area and complete orbital band, whitish (230,219,178); f7–10 entirely white, f6 and 11 partially white. Mesosoma: bright orange (195,082,041); pronotum mostly black, pronotal collar and narrow dorsal margin connected, buff (215,188,123); propleuron laterally whitish; mesoscutum and scutellum centrally, black; scutellar carina, scutellum laterally, axillar carina, tegula, subalar ridge and epicnemium dorsally, whitish; fore and mid legs light orange towards apex, fore t5 and mid t3–5 brownish; hind second trochanter medially black; hind femur black except extreme base; hind tibia black, dorsally white on basal 0.6; basal 0.4 of hind t1 black, t2–5 white. Metasoma: black; T1 laterally orange, dorsally orange at anterior margin, gradually changing to black at anterior 0.4; T1–7 with posterior whitish stripes, expanding laterally at T2–7, T–8 only with lateral whitish marks; S2–6 whitish with lateral blackish marks.

Male. Fore wing 12.18 mm long. Similar to female, except for the following: mandible whitish except apex; yellowish marks on pronotum slightly more extensive; dark area of pronotum brownish instead of black; postscutellum whitish; metapleuron dorsally covered with the same wrinkling of propodeum, however less regular; juxtacoxal carina slightly stouter; cell 1+2Rs much wider than high, AWH 1.37, veins 2-M and 3-M about same length; blackish dorsal area of T1 almost reaching anterior margin.

Variation. Epicnemium and part of mesosternum sometimes pale yellow. Color tones varying from dark (153,064,044) to light orange (218,149,059), and from light yellow (221,199,131) to brownish (170,125,081).

Comments. Similar to M. nigriscutus sp. nov., from which it can be isolated mainly by having propodeum entirely orange (vs. anterior area and part of posterior area black); collar pale yellow or whitish (vs. pronotum entirely black); mesopleuron dorsally orange (vs. black); orbital band complete (vs. widely interrupted near dorsal margin of eye); and hind tibia mostly blackish, with whitish marks (vs. entirely bright yellow). Also somewhat similar to M. convexus sp. nov., from which it can be differentiated mainly by the orbital band complete (vs. widely interrupted at gena); propodeal wrinkles moderately widely spaced (vs. very closely spaced); posterior transverse carina of propodeum distinct as moderately strong sublateral crests (vs. entirely absent); hind femur and tibia mostly blackish (vs. hind femur orange, hind tibia deep yellow).

Biology. Unknown.

Etymology. From the Latin words albus, meaning “white”, ater, meaning “black” and artus, meaning “limb”; in reference to the mostly black and whitish hind leg.

Material examined. 2 ♀, 5 ♂♂. Holotype ♀ from COSTA RICA, Alajuela, Peñas Blancas , 700 m, V.1987, E.Cruz. Pinned. In good shape.

Paratypes: 1 ♀ from COSTA RICA, Alajuela, Peñas Blancas , 700 m, VI.1987 , E.Cruz; 1 ♂, same data except 7.VII.1987 . 1 ♂ from COSTA Rica, Escazú 22.V.1987 , Townes & Townes; 1 ♂, same data except 23.V.1987 ; 1 ♂, same data except 25.V.1987 ; 1 ♂, same data except 26.V.1987 ( AEIC) .

Distribution. Recorded from two localities in Costa Rica ( Fig. 290 ).

Figures

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

FIGURES 162–170. Propodeum, dorsal view. 162, M. advenus*. 163, M. paradoxus*. 164, M. badius*. 165, M. albiaterartus*. 166, M. longicaudis*. 167, M. amarelus. 168, M. apertus. 169, M. convexus*. 170, M. laevilatus.

FIGURES 236–241. Hind leg. 236, M. mesonotator. 237, M. arcuatus. 238, M. keraiopetalus. 239, M. mesosternalis. 240, M. albiaterartus*. 241, M. versicolor*.

FIGURES 289–296. Distribution maps for species of Messatoporus. 289, M. advenus. 290, M. albiaterartus. 291, M. allomeros. 292, M. amarelos. 293, M. amazonensis. 294, M. amplithorax. 295, M. andinus. 296, M. anepomius.

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.