Messatoporus luizae, Lima & Camargo & Penteado-Dias, 2023

Lima, Thalita Da Silva, Camargo, Luiza Figueiredo & Penteado-Dias, Angélica Maria, 2023, New species of the Genus Messatoporus Cushman (Hymenoptera, Ichneumonidae, Cryptinae) from the Neotropical Region, Zootaxa 5346 (4), pp. 489-500 : 490-492

Messatoporus luizae sp. nov. Lima & Penteado-Dias, 2022

( Figs 1–2 )

Material Examined: Holotype: 1 ♁ (# DCBU 413032 ) “Angra dos Reis, RJ, Brasil, Ilha Grande – Pico do Papagaio , S 23 o 09’06” W 44 o 11’20”, armadilha Malaise 07 (666m), I.2018, L. Campello & eq. col.”

Description, Male ( Fig.1 ). Fore wing length, 7.58 mm.

Head. Mandible densely covered with long hairs; MLW 1.68; MWW 0.61; dorsal tooth in front view projected upwards, much longer than ventral tooth. MSM 0.31. Clypeus entirely flattened, centrally concave with a short mid longitudinal elevation near toruli; CHW 3.4; CWW 2.1; apical area laterally with distinct triangular lobes, its margin regular, not raised. Antenna with 28 flagellomeres; flagellum uniform; apex of apical flagellomere not distinctly tapered. Supra-antennal area shiny, sparsely pilose, scarcely punctate, with a curved median line arranged horizontally, weakly striate near antennal sockets, coronal suture distinct, ventrally and around ocelli distinctly concave. Occipital carina fading out before reaching the hypostomal carina, far from the mandible base. Temple and gena densely covered with long hairs, moderately wide, gena regular.

Mesosoma . Pronotum shiny, impunctate, sparsely pilose at dorsal margin, striated along posterior margin; epomia strong, complete, short, ending very close from dorsal margin of pronotum, after diverging from pronotal collar approximately straight. Mesoscutum 1.22 × as long as wide, sparsely pilose, impunctate; notaulus reaching about 0.70 of mesoscutum length, moderately impressed, microcrenulate; scuto-scutellar groove deep with vestigial longitudinal wrinkles. Mesopleuron punctate sparsely pilose, except the dorsal margin, hypoepimeron glabrous. Subalar ridge distinctly projected; epicnemial carina reaching about 0.85 of distance to subalar ridge; sternaulus strong, crenulate, sinuous; scrobe deep; mesopleural suture with longitudinal wrinkles. Mesosternum punctate, without transversal wrinkles. Transverse sulcus at base of propodeum wide, about 0.64× as long as anterior area of propodeum, with shorts wrinkles laterally; metapleuron punctate, without transverse wrinkles, sparsely pilose; juxtacoxal carina absent. Fore tibia is not distinctly swollen, fore femur moderately swollen. Mesal lobe of tarsomere 4 with a distinct cluster of stout bristles. Hind coxa punctate.

Propodeum. 1.06 × as long as wide, shiny, moderately pilose; anterior area laterally scarcely punctate; spiracle elongate, SWL 1.41; anterior transverse carina medially arched forwards. Propodeal wrinkles moderately strong, anteriorly very close, posteriorly more widely spaced and mostly slightly curved; posterior transverse carina absent.

Wings. Fore wing vein 1-Rs+M distinctly sinuous, with bulla placed around its midlength; crossvein 1m-cu less curved; vein 2Cua 0.45 × as long as crossvein 2cu-a; bulla of crossvein 2m-cu placed mostly on anterior half; cell 1+2Rs small, APH 0.20 pentagonal, AWH 1.09; crossvein 3r-m absent; vein 3-M longer than 2-M; 4-Rs distinctly sinuous, curved; 4-M slightly curved backwards. Hind wing vein 1-M forming a distinctly obtuse angle with vein Cua; vein 2-Rs straight, medially and apically weaker, reaching wing margin; HW1C 1.03; vein Cub almost straight, forming straight angle with Cua; vein 2-1A close but not reaching posterior wing margin.

Metasoma. First tergite long, about 0.88 × as long as T2, smooth, shiny, sparsely pilose laterally; T1LW 4.41; T1WW 1.45; T1 spiracle at middle; median depression absent; ventro lateral carina absent; thyridium longer than wide; T2 almost as long as T1; T2–T8 moderately pilose with small punctures; T2LW 4.03; T2WW 1.25.

Color. Mostly black with whitish spots and blue reflections. Head black, clypeus, mandible (except its apex), labial and maxillary palpus, supra-clypeal area, scape ventrally, orbital band (interrupted at the dorsal margin of the eyes) whitish; flagellum black, pedicel dark brown, flagellomeres 13–17 entirely whitish, flagellomeres 18 and 19 with small white spot only dorsally. Mesosoma black; mesoscutum and dorsal division of metapleuron with bluish reflections; pronotal collar, propleuron (except for the margins and centrally), subcircular spot on mesoscutum, scutellar carina (except anterior margins), scutellum, tegula, subalar ridge, mark at dorsal region of mesopleuron and another one at mesosternum that extends to the ventral region ( Fig. 2 ), dorsal division of mesopleuron, lateral and apical marks on propodeum, whitish; ventral region of hind coxa with a large spot, mid coxa mostly whitish with small brown spot apically, hind tibia whitish basally, fore femur with a brown stripe dorsally, mid femur brownish and mid tibia with whitish stripe, apically brownish, fore and mid trochanter, whitish, hind trochanter black. Metasoma: T1 whitish until at median dorsally area; T1–4 with posterior white stripes; all sternites white.

Female. Unknown.

Distribution. Angra dos Reis, RJ, Brazil.

Host. Unknown.

Etymology. Named in honor of the Brazilian hymenopterist Luiza Figueiredo Camargo, in acknowledgement of her valuable help all these years.

Comments. Mostly closer to M. semialbiventris Santos, 2013 from which it can be differentiated from the male species, by: apical flagellomere not distinctly tapered (vs. apex of apical flagellomere much narrower than base, distinctly tapered); supra-antennal area shiny (vs. mat) and scarcely punctate (vs. moderately dense punctation); weakly striate near antennal sockets (vs. distinctly striate); epomia ending very close to dorsal margin of pronotum (vs. ending far from dorsal margin of pronotum) and approximately straight (vs. distinctly curved); subalar ridge distinctly projected (vs. weakly projected); juxtacoxal carina absent (vs. juxtacoxal carina represented by very shorts ridges); SWL 1.41 (vs. SWL 4.00); anterior transverse carina medially arched forwards (vs. anterior transverse carina medially straight); fore wing vein 1-Rs+M with bulla placed around its midlength (vs. bulla placed on basal length); vein 3-M longer than 2-M (vs. vein 3-M about as long as 2-M); hind wing vein 1-M forming distinctly obtuse angle with vein Cua (vs. Hind wing vein 1-M forming straight angle with the vein); first tergite long, about 0.88 × as long as T2 (vs. first tergite short, about 0.45 × as long as T2); T2LW 4.03 (vs. T2LW 2.02); blue reflections on body (vs. without blue reflections); pronotum with whitish marks (vs. pronotum entirely black); subalar ridge entirely whitish (vs. subalar ridge with very small whitish mark); scutellum entirely whitish (vs. whitish only laterally); dorsal division of metapleuron with a wide white mark (vs. white mark at dorsal division of metapleuron restricted to anterior portion); noticiable whitish marks at metapleuron and propodeum (vs. whitish marks on metapleuron and propodeum very small); ventral region of hind coxa with large whitish spot (vs. whitish mark at hind coxa small); T1-4 with posterior white stripes (vs. posterior whitish stripes on T1–4 almost indistinct.). In addition, Santos & Aguiar (2013) cited “the yellow or whitish mark at the mesosternum of some males” of M. semialbiventris , which could be confused with the marks of M. luizae , however, M. luizae has two large white marks: one on its mesosternum,that extends to the ventral region and another on its mesopleuron ( Fig. 2 ).

Figures

FIGURE 1. Messatoporus luizae sp. nov. Holotype male, habitus.

FIGURE 2. Messatoporus luizae sp. nov. Holotype, male. Head, mesosoma and propodeum, lateral view.