Messatoporus amarelus 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 amarelus

description: Messatoporus amarelus Santos, sp. nov.   
(Figs 39, 167, 211, 276, 292)  
 Female. Fore wing 5.58 mm. HEAD: Mandible with moderately sparse and long hairs; MLW 2.12; MWW 0.5; dorsal tooth in front view projected upwards, much longer than ventral tooth; ventral tooth triangular. MSM 0.29. Clypeus basally evenly convex, apically gradually flattened or basally convex, apically abruptly flattened, centrally concave; CHW 2.2; CWW 2.44; apical area medially concave, laterally slightly projected, its margin very sharp, raised. Antenna with 21 flagellomeres; flagellum uniform; apex of apical flagellomere much narrower than base, distinctly tapered. Supra-antennal area shiny, scarcely punctate, not striate near antennal sockets, ventrally very weakly concave, medially with a distinct depression but without a distinct line. Occipital carina uniformly curved, fading out at distance distinctly longer than 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 very weak, complete, short, ending far from dorsal margin of pronotum, after diverging from pronotal collar approximately straight. Mesoscutum strongly and uniformly convex, subcircular, 1.14 × as long as wide, glabrate, shiny, impunctate; notaulus reaching about 0.65 of mesoscutum length, weakly impressed (apically faint), surface over notaulus not wrinkled; scuto-scutellar groove moderately deep, without wrinkles. Subalar ridge weakly projected; epicnemial carina complete, reaching subalar ridge, distinctly sinuous; sternaulus complete but weak, strongly sinuous, smooth; scrobe very shallow; mesopleural suture without wrinkles. Mesosternum medially with short transverse wrinkles (very weak); median portion of posterior transverse carina of the mesothoracic venter indistinct. Transverse sulcus at base of propodeum very wide, about 0.74 × as long as anterior area of propodeum, impunctate; metapleuron sparsely and finely punctate, without transverse wrinkles, sparsely pilose; juxtacoxal carina absent. Fore tibia distinctly swollen. Mesal lobe of t4 with a distinct cluster of stout bristles. Hind coxa with moderately strong punctures separated by more than their own diameter.  
PROPODEUM: 1.03 × as long as wide, shiny, sparsely pilose; anterior area scarcely punctate; spiracle elliptic, SWL 2.00; anterior transverse carina medially slightly arched forwards. Propodeal wrinkles weak, very closely spaced, central wrinkles complete, anterior and posterior ones medially faint, 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 0.38 of its own length; vein 2Cua 0.29 × as long as crossvein 2cu-a; bulla of crossvein 2m-cu placed mostly on posterior half; cell 1+2Rs small, APH 0.58, pentagonal, about as high as wide, AWH 0.88; crossvein 3r-m absent; vein 3-M about as long as 2-M; 4-Rs straight, apically slightly upcurved; 4-M semi-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 0.85; vein Cub distinctly convex on posterior half, forming distinctly obtuse angle with vein Cua (basally curved); vein 2-1A reaching 0.86 of distance to posterior wing margin.  
METASOMA: First tergite short, about 0.35 × as long as T2–8, somewhat depressed, ventrolaterally angled, dorsally glabrate, laterally densely pilose; T1LW 3.7; T1WW 1.38; spiracle on 0.52 of its length, slightly prominent; median depression elongate, very shallow; lateral and median posterior depressions absent; ventrolateral carina absent. T2LW 1.42; T2WW 2.19; thyridium about as long as wide, without small circular depression just behind it; T2–8 smooth between punctures, densely and uniformly pilose. OST 1.25; ovipositor moderately stout, straight, basally cylindric, apically distinctly depressed; dorsal valve with three moderately strong ridges; ventral valve apex with 6 teeth, apical teeth progressively more closely spaced; surface anterior to first tooth rugulose.  
 Color. Head black, mesosoma mostly orange, metasoma fuscous and ferruginous. Head: black; f10–13 entirely white, 9 and 14 partially white; scape and pedicel ventrally ferruginous; clypeus, mandible except apex, palpi, supra-clypeal area and orbital band broadly interrupted at temple, whitish. Mesosoma: bright orange (212,119,052); collar whitish; central lobe of mesoscutum and anterior area of propodeum light brown (142,076,048); fore and mid tibiae yellow, tarsi fuscous; hind tibia basal 0.8 yellow, changing to blackish on apical 0.2; hind tarsus white except basal 0.6 of T1 and most of t5, blackish. Metasoma: ferruginous and T1 ferruginous, medially fuscous; T2–8 anteriorly fuscous, posteriorly yellow (235,203,056), posterior tergites almost entirely fuscous.   
 Male. Fore wing 4.75–5.35 mm long. Similar to female, except for the following: tones of orange at mesoscutum and propodeum generally darker (165,079,045); scape ventrally whitish; antenna with 23–24 flagellomeres; orbital band extending at most of gena; pronotum sparsely marked with blackish; central lobe of mesoscutum, scutellum posteriorly, postscutellum, anterior area of propodeum and median 0.5 of T1 dorsally, dark brown; mid first trochanter with dorsal blackish mark.   
 Variation. Second female with fore wing 6.09 mm long; flagellomere 9 entirely white, 8 partially white; scape and pedicel ventrally whitish; brown marks at mesosoma very weak.   
 Comments. Similar to M. apertus, from which it can be differentiated mainly by having generally smaller size, fore wing 4.75–5.58 mm (vs. 7.28–10.50); T2–8 with distinct basal dark brown marks (vs. entirely orange or with weak fuscous or blackish marks); cluster of bristles at mesal lobe of hind t4 small, reduced to 3–4 bristles (vs. distinct, represented by numerous bristles); and fore wing crossvein absent (vs. present, though spectral). It does also resembles M. aurantius sp. nov., from which it can be separated by the ovipositor straight (vs. slightly upcurved); hind tibia apically blackish (vs. entirely yellowish); and epomia epicnemial carina complete (vs. epomia distinct only after diverging from collar and epicnemial carina reaching about 0.6 of distance to subtegular ridge).   
 Biology. Unknown.   
 Etymology. Latinized form of the Portuguese word amarelo, meaning “yellow”; in reference to the partially yellow metasoma, and also to the type locality name, Pau Amarelo (yellow wood).   
 Material examined. 2 ♀, 6 ♂♂. Holotype ♀ from BRAZIL, Espírito Santo, Cariacica, Reserva Biológica de Duas Bocas, Pau Amarelo, Pt. 19, 23–25.X.2005, yellow pans, APAguiar et al (UFES). Mounted on triangle point. Right mid leg apicad to coxa missing; otherwise in good shape.   
 Paratypes: 1 ♀ from BRAZIL, Espírito Santo, Cariacica, Reserva Biológica de Duas Bocas, Pau Amarelo, Pt. 13, 23–25.X.2005, yellow pans, APAguiar et al. (UFES). 1 ♂ from BRAZIL, Paraná, Colombo, Embrapa Br 476 km 20, 23.III.1987, Malaise trap, PROFAUPAR; 1 ♂, same data except Guarapuava, Estação de águas Santa Clara, 10.XI.1986; 1 ♂, same data except 16.III.1986; 1 ♂, same data except 17.III.1986; 1 ♂, same data except 3.XI.1986; 1 ♂, same data except 8.XII.1986 (DZUP).   
 Distribution. Atlantic Forest in southern and southeastern Brazil (Fig. 292).
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 55-56, DOI: 10.11646/zootaxa.3634.1.1, http://zenodo.org/record/5262081