Messatoporus ellipsicavus 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 ellipsicavus

description: Messatoporus ellipsicavus Santos, sp. nov.   
(Figs 84, 126, 206, 217, 259, 324)  
 Female. Fore wing 5.28 mm. HEAD: Mandible densely covered with long hairs; MLW 1.96; MWW 0.43; dorsal tooth in front view projected upwards, much longer than ventral tooth; ventral tooth triangular. MSM 0.21. Clypeus almost entirely flattened, centrally concave; CHW 1.86; CWW 1.86; apical area medially concave, laterally with distinct triangular lobes, its margin regular, not 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, 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 narrow, gena regular (as in Fig. 260).   
THORAX: Pronotum glabrous, shiny, minutely punctulate, with weak and short wrinkles along posterior margin of collar; epomia very weak, distinct only after diverging from pronotal collar, short, ending far from dorsal margin of pronotum, after diverging from pronotal collar approximately straight. Mesoscutum strongly and uniformly convex, ovoid, 1.22 × as long as wide, sparsely pilose, shiny, minutely punctulate; notaulus reaching about 0.68 of mesoscutum length, moderately impressed, surface over notaulus not wrinkled; scuto-scutellar groove shallow, without wrinkles. Subalar ridge weakly projected; epicnemial carina reaching about 0.6 of distance to subalar ridge, irregular; sternaulus complete but weak, weakly sinuous, smooth; scrobe moderately deep; mesopleural suture ventrally with strong longitudinal wrinkles, wrinkles dorsally weak. 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 0.7 × as long as anterior area of propodeum, very weakly rugulose; metapleuron with very fine and moderately dense punctures, with vestigial wrinkles, moderately pilose; juxtacoxal carina represented by very short ridges. Fore tibia distinctly swollen. Mesal lobe of t4 with 3–4 bristles. Hind coxa punctate-coriarious.  
PROPODEUM: 1.16 × as long as wide, shiny, moderately pilose; anterior area almost impunctate; spiracle elliptic, SWL 3.00; anterior transverse carina medially almost straight. Propodeal wrinkles weak, very closely spaced, anteriorly complete, posteriorly mostly incomplete and overlapped, 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 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 0.37 of its own length; vein 2Cua 0.38 × as long as crossvein 2cu-a; bulla of crossvein 2m-cu placed mostly on posterior half; cell 1+2Rs small, APH 0.64, pentagonal, about as high as wide, AWH 1.13; crossvein 3r-m absent; vein 3-M distinctly shorter than 2-M; 4-Rs very weakly sinuous; 4-M semi-spectral, straight. Hind wing vein 1-M forming distinctly obtuse angle with vein Cua; vein 2-Rs tubular, apically spectral, reaching wing margin; HW1C 1.36; vein Cub almost straight, very slightly convex, forming straight angle with Cua; vein 2-1A reaching 0.56 of distance to posterior wing margin.  
METASOMA: First tergite short, about 0.33 × as long as T2–8, strongly depressed, ventrolaterally angled, dorsally glabrate, laterally moderately pilose; T1LW 3.65; T1WW 1.48; spiracle on 0.46 of its length, slightly prominent; median depression elongate, very shallow; median posterior depression absent; lateral depressions elongate, very shallow; ventrolateral carina absent, but traceable as limit between lateral and ventral portions. T2LW 1.82; T2WW 1.66; thyridium much longer than wide, without small circular depression just behind it; T2–8 covered with small, shallow foveae, densely and uniformly pilose. OST 0.78; ovipositor moderately stout, straight, basally cylindric, apically distinctly depressed; dorsal valve with four moderately strong ridges; ventral valve apex with 7 teeth, apical teeth progressively more closely spaced; surface anterior to first tooth rugulose.  
 Color. Head dark brown and whitish, meso and metasoma orange, whitish and dark brown. Head: dark brown (098,082,067); clypeus, mandible except apex, malar space, supra-clypeal area, scape and pedicel ventrally and orbital band interrupted at temple, whitish (241,229,195); scape and pedicel dorsally and flagellum, brown (124,080,054); white band at flagellum starting at f10. Mesosoma: mostly bright orange (213,115,047); collar and dorsal margin of pronotum connected, subcircular spot on mesoscutum, scutellum except posterior 0.2, tegula, subalar ridge, ventral mark covering 0.3 of mesopleuron, mesosternum centrally, dorsal division of metapleuron, dorsal 0.5 of metapleuron and narrow posterior arc-shaped mark on propodeum, pale yellow (228,214,138) to whitish; posterior 0.6 of pronotum, most of central lobe of mesoscutum, scutellum posteriorly, axillar carinae centrally, postscutellum, mark over posterior apex of sternaulus, ventral 0.6 of mesepimeron, ventral mark on metapleuron, small spots at lateral propodeum and over anterior transverse carina medially and posterior subcircular mark on propodeum, dark brown; fore leg whitish, darker towards apex, t1–4 ferruginous and t5 blackish; fore femur with dorsal brown stripe, fore tibia with ventral brown stripe on basal 0.8; mid coxa and trochanters whitish, trochanters with dorsal brownish marks; mid femur pale orange, with weak dorsal brownish stripe; mid tibia whitish with ventral brown stripe on basal 0.8; mid tarsus dark brown; hind coxa anteriorly pale orange, posteriorly whitish, medially with large and somewhat S-shaped brown mark; hind trochanters whitish with dorsal brown marks; hind femur bright orange; basal 0.15 of hind tibia, apical 0.5 of t1, t2–4 and basal 0.5 of t5, whitish; median 0.65 of hind tibia light brown; apical 0.2, tibial spurs, basal 0.5 of t1 and apical 0.5 of t5, dark brown. Metasoma: mostly bright orange; T1 anterior 0.4 and posterior 0.2 whitish; T2–3 anterior 0.6 brown (except thyridium), T2 with posterior whitish stripe.   
 Male. Fore wing 5.89 mm long. Very similar to female, except for the following: antenna with 21–26 flagellomeres; brown mark on propodeum very small; ventral 0.7 of mesopleuron (including hypoepimeron) and mesosternum entirely, whitish; metapleural triangle dark brown; transverse sulcus medially usually blackish; metapleuron almost entirely whitish; propodeum almost entirely dark brown, except lateral triangular marks; brownish marks at fore and mid legs very weak or absent; T2–7 dark brown, lighter towards apical tergites, T2–6 with posterior whitish stripe.   
 Variation. Fore wing 5.46–8.03 mm long. Orbital band interruption sometimes reaching gena; antenna with 20–28 flagellomeres; dark brown mark on pronotum sometimes reduced or absent, its borders sometimes bright orange; central lobe of mesoscutum sometimes light brown, only slightly darker than lateral lobes; epicnemium and area over sternaulus sometimes dark brown; whitish marks at meso and metapleuron sometimes reduced, sometimes almost indistinct; whitish mark on metapleuron sometimes not restricted to dorsal portion, occupying as much as 0.6 of its surface; longitudinal mark at hind coxa ferruginous to black, hind coxa sometimes almost entirely brown; basal and apical tips of hind femur sometimes blackish; t5 sometimes entirely blackish; T1 sometimes with median 0.8 orange or dark brown. All whitish tones sometimes turning to buff (225,197,092).   
 Comments. Similar to M. copiosus sp. nov.: these are the only species with orange mesoscutum in which the rest of the mesosoma is not entirely orange or almost so. These two species can be isolated by many features; mainly by M. ellipsicavus having orbital band widely interrupted at gena (vs. complete); mesopleuron and mesosternum almost entirely bright orange (vs. almost entirely whitish); metapleuron orange in 0.6 of its area (vs. entirely whitish); epomia distinct only after diverging from collar (vs. complete); hind wing vein Cub almost straight, very slightly convex (vs. distinctly convex on posterior half); and ovipositor dorsal valve with four moderately strong ridges (vs. five). The males of both species are also very similar, particularly because males of M. ellipsicavus have mesosternum, mesopleuron and metapleuron extensively whitish; males of both species tend to have whitish mark on propodeum medially interrupted, forming two subcircular lateral spots; and also because the epomia in males of both species is so reduced it is difficult to distinguish whether it is complete or not. Thus, males of M. ellipsicavus can be recognized by the orbital band incomplete; hind wing vein Cub almost straight; and transverse sulcus of propodeum orange or brown (vs. whitish).   
 Biology. Unknown.   
 Etymology. From the Latin words ellipsis, meaning “omission”, but also “ellipse”, and cavus, meaning “hole”; in reference to the elliptic propodeal spiracle.   
 Material examined. 20 ♀ 6 ♂♂. Holotype ♀ from BRAZIL, Rio Grande do Sul, Arroio Grande, 21.III.2003, Malaise trap, RFKrüger (UFES). Mounted on triangle point. Tip of both antennae missing; otherwise in good shape.   
Paratypes: 1 ♀ from BRAZIL, Paraná, Ponta Grossa, Reserva IAPAR Br 376, 22.XII.1986, Malaise trap, PROFAUPAR; 1 ♀, same data except 29.IX.1986; 2 ♀, same data except 6.X.1986 (DZUP). 1 ♀ from BRAZIL, Santa Catarina, FHoffmann (NRMS). 1 ♀, same data except Nova Teutônia, 300–500 m, 15.IX.1946, FPlaumann; 1 ♀, same data except 3.IV.1941 (AEIC); 1 ♂, same data except 27.IV.1948; 1 ♂, same data except 27.XI.1957; 1 ♀, same data except 16.IV.1958; 1 ♂, same data except 2.II.1959; 1 ♂, same data except 21.XII.1959; 1 ♂, same data except 28.I.1959; 1 ♂, same data except 1.II.1960; 1 ♀, same data except 14.III.1960; 1 ♀, same data except 23.II.1960; 1 ♀, same data except 29.III.1960; 1 ♀, same data except 3.III.1960; 1 ♀, same data except 8.II.1960; 1 ♀, same data except 8.III.1960; 2 ♀, same data except 1.IV.1961; 1 ♀, same data except 20.II.1961; 1 ♀, same data except 3.II.1961; 1 ♀, same data except 16.II.1962 (CNCI).  
 Distribution. Atlantic Forest in southern Brazil (Fig. 324).
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 118-119, DOI: 10.11646/zootaxa.3634.1.1, http://zenodo.org/record/5262081