Messatoporus igneus Santos & Aguiar 2013, sp. nov.
Creators: name: Santos, Bernardo F.
name: Aguiar, Alexandre P.
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Messatoporus
Messatoporus igneus

description: Messatoporus igneus Santos, sp. nov.   
(Figs 119, 329)  
 Female. Unknown.   
 Male. Fore wing 4.69 mm. HEAD: Mandible with moderately sparse and long hairs; MLW 1.92; MWW 0.35; dorsal tooth in front view projected upwards, much longer than ventral tooth; ventral tooth triangular. MSM 0.15. Clypeus basally evenly convex, apically gradually flattened, centrally straight; CHW 1.91; CWW 1.91; apical area medially concave, laterally slightly projected, its margin regular, not raised. Antenna with 23 flagellomeres; flagellum uniform. Supra-antennal area shiny, scarcely punctate, not striate near antennal sockets, ventrally very weakly 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 moderately wide, gena regular (as in Fig. 260).   
THORAX: Pronotum glabrous, shiny, impunctate, not distinctly wrinkled; epomia very weak, complete, short, ending far from dorsal margin of pronotum, after diverging from pronotal collar distinctly curved. Mesoscutum strongly and uniformly convex, ovoid, 1.26 × as long as wide, sparsely pilose, shiny, impunctate; notaulus reaching about 0.66 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 without wrinkles. Mesosternum medially with short transverse wrinkles; median portion of posterior transverse carina of the mesothoracic venter moderately long, arched backwards. Transverse sulcus at base of propodeum very wide, about 1.22 × as long as anterior area of propodeum, very weakly rugulose; metapleuron sparsely and finely punctate, without transverse wrinkles, dorsally sparsely pilose, ventrally moderately pilose; juxtacoxal carina absent. Hind coxa with moderately strong punctures separated by more than their own diameter, dorsally rugulose.  
PROPODEUM: 1.22 × as long as wide, shiny, sparsely pilose; anterior area scarcely punctate, medially strigulate; spiracle elliptic, SWL 3.00; 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 0.4; crossvein 1m-cu irregular, limit between 1m-cu and 1-Rs+M clearly traceable; vein 1M+Rs anteriorly straight, posteriorly weakly curved; fore wing crossvein 1 cu-a basad of 1M+Rs by 0.26 of its own length; vein 2Cua 0.28 × as long as crossvein 2cu-a; bulla of crossvein 2m-cu placed mostly on posterior half; cell 1+2Rs small, APH 0.73, pentagonal, distinctly higher than wide, AWH 0.83; 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 somewhat irregular, apically slightly upcurved; 4-M tubular, irregular. Hind wing vein 1-M forming distinctly obtuse angle with vein Cua; vein 2-Rs tubular, apically spectral, not reaching wing margin; HW1C 0.63; vein Cub almost straight, very slightly convex, forming distinctly obtuse angle with vein Cua (not curved); vein 2-1A reaching 0.84 of distance to posterior wing margin.  
METASOMA: First tergite short, about 0.33 × as long as T2–8, somewhat depressed, ventrolaterally rounded, uniformly, moderately pilose; T1LW 4.7; T1WW 1.33; spiracle on 0.49 of its length, slightly prominent; median depression subcircular, distinct; lateral and median posterior depressions absent; ventrolateral carina absent. T2LW 2.5; T2WW 1.87; thyridium longer than wide, without small circular depression just behind it; T2–8 smooth between punctures, densely and uniformly pilose.  
 Color. Head black, mesosoma orange, black and whitish; metasoma brown and whitish. Head: black; clypeus, mandible except apex, mouthparts, supra-clypeal area, scape and pedicel ventrally and orbital band at ventral half of supra-antennal area, whitish (246,231,199); scape and pedicel dorsally brown; f11–13 entirely white, f14 dorsally white, f10 and f15 dorsally white at about half of their length. Mesosoma: orange (207,093,019); pronotum whitish, except semicircular mark at posterior margin, anteriorly dark brown, posteriorly orange; central lobe of mesoscutum, very weak median stripe on scutellum, ventral 0.4 of prepectus, mesopleuron along sternaulus, posterior half of mesosternum centrally, metasternum, ventral margin of metapleuron, anterior area of propodeum and small mark at transverse sulcus, dark brown (071,051,036); lateral portions of mesosternum and apex of metapleuron, whitish; fore and mid coxa and fore trochanters, whitish; fore femur and tibia dorsally brown, ventrally whitish; fore tarsus light fuscous; mid first trochanter whitish with apical brown mark; mid second trochanter and femur light brown, lighter anteriorly; mid tibia anteriorly whitish, posteriorly light brown; mid and hind tibial spurs and mid tarsus dark brown; hind coxa outer face dark brown, inner face light brown, with posterior whitish mark on apical 0.6; hind trochanters dark brown; hind femur deep orange, brown at base and apex; basal 0.05 and apical 0.7 of tibia dark brown, elsewhere whitish; basal 0.8 of hind t1 dark brown, remainder of tarsus white. Metasoma: brown (085,044,018), lighter towards posterior tergites; anterior 0.25 of T1 whitish; T1–4 with posterior whitish stripe, almost indistinct at T4.   
 Variation. Fore wing 4.20–5.49 mm long. Flagellum light brown to black; median stripe on scutellum sometimes distinct; mesosternum sometimes almost entirely whitish; transverse sulcus sometimes with weak brownish mark; anterior face of hind leg sometimes dark brown; brown areas at mesosoma sometimes weak, light, or almost indistinct, sometimes very dark, blackish; metasoma sometimes dark brown (177,077,228) or blackish at anterior tergites. Specimens from Caruaru with orange areas at mesosoma ferruginous (221,156,066) and propodeal wrinkles weak.   
 Comments. Messatoporus igneus is one of the few species of Messatoporus with orange mesoscutum in which the mesosoma have blackish marks. For that reason, it can be mistaken as the male of M. copiosus sp. nov., or, more likely, of M. ellipsicavus sp. nov. Specimens of M. igneus can be distinguished from males of both species by having pronotum with distinct blackish mark (vs. entirely whitish); mesopleuron and mesosternum mostly orange with blackish marks (vs. mostly whitish with dorsal orange marks); metapleuron orange (vs. mostly whitish); orbital band widely interrupted at gena (vs. complete or only shortly interrupted at dorsal margin of eye); and central lobe of mesoscutum dark brown, without subcircular spot (vs. mesoscutum orange or dark brown with subcircular yellow spot).   
 Biology. Unknown.   
 Etymology. From the Latin igneus, meaning “on fire”; in reference to the mostly bright orange body.   
 Material examined. 16 ♂♂. Holotype ♀ from BRAZIL, Espírito Santo, Santa Maria de Jetibá, Fazenda Paulo Seick, Pt. B 3, 29.XI–6.XII.2002, MTTavares, COAzevedo et al. (UFES). Mounted on triangle point. Most of right flagellum broken and re-glued to specimen; otherwise in good shape.   
 Paratypes: 2 ♂♂ from BRAZIL, Pernambuco, Caruaru, 900 m, V.1972, JLima (AEIC); 1, same data except IV.1972, MAlvarenga (CNCI). 1 ♂ from BRAZIL, Espírito Santo, Conceição do Castelo, Ribeirão do Meio, próx. cafezal (inclinado), 17–24.III.2007, Malaise trap, APAguiar et al.; 1 ♂, same data except Santa Maria de Jetibá, Fazenda Paulo Seick, Pt. T 4, 29.XI–6.XII.2002, MTTavares, COAzevedo et al .; 1 ♂, same data except Santa Teresa, Propriedade rural, Pt. 4, 19–26.VIII.2007, FGRampinelli et al. (UFES). 1 ♂ from BRAZIL, SP, Águas Vermelhas, 800 m, XII.1983, MAlvarenga; 6 ♂♂, same data except São José dos Barreiros, Serra da Bocaina, 1650 m, XI.1968, Alvarenga & Seabra. 1 ♂ from BRAZIL, Santa Catarina, Nova Teutônia, 300–500 m, 11.IV.1952, FPlaumann; 1 ♂, same data except 16.X.1952 (AEIC).   
 Distribution. Southern to northeastern Brazil. Most records are from Atlantic Forest, but the northernmost, Caruaru, correspond to a transitional area between rainforest and semi-arid, xeromorphic vegetation (Fig. 329).
description: Published as part of Santos, Bernardo F. & Aguiar, Alexandre P., 2013,  Phylogeny and revision of  Messatoporus  Cushman (Hymenoptera, Ichneumonidae, Cryptinae), with descriptions of sixty five new species , pp. 1-284 in Zootaxa 3634 (1) on pages 127-128, DOI: 10.11646/zootaxa.3634.1.1, http://zenodo.org/record/5262081