Leucospis muru,

Lima, Alessandro Rodrigues & Dias, Priscila Guimarães, 2018, The New World species of Leucospis Fabricius, 1775 (Hymenoptera, Chalcidoidea, Leucospidae): an update of Bouček’s revision with description of two new species from Brazil, Zootaxa 4441 (1), pp. 1-45: 35-37

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Leucospis muru

sp. nov.

Leucospis muru  sp. nov.


( Fig. 22View FIGURE 22)

Type locality. Brazil, Minas Gerais, Brumadinho  

Diagnosis. Occipital carina conspicuous only behind ocellar triangle; POL about 1.1‒1.3× OOL; inner margin of the eye almost straight; dorsellum convex, its lateral margin not distinctly carinate; pronotum with small discal carina, premarginal carina slightly raised as an impunctate line; propodeum pilose, median carina present, plicae present; hind coxa uniformly punctate; upper edge evenly convex, posteriorly with a low translucent very small lobe; hind femur broad, 2.1‒2.2× as long as broad, teeth excluded; fore wing blackish, with apical quarter hyaline and apical process of stigmal vein very short, about 0.25× as long as uncus; in female, tergite I with deep median furrow; tergite VI with latero-posterior triangular, above spiracle level; ovipositor reaching propodeum.

Description (Holotype female, pinned). Head as broad as pronotum posteriorly, dorsally 2.3× as broad as long ( Fig. 22GView FIGURE 22); temple two thirds the greatest breadth of median ocellus. Occipital carina high at ocellar region, extending laterally to half distance between lateral ocellus and eye, in dorsal view ( Fig. 22GView FIGURE 22). POL about 1.13× OOL, ocellar triangle 2.4: 1 (length: height); lateral ocelli touching occipital carina. Vertex rather regularly punctate, with indication of rugae radiating from lateral ocellus laterally. Scrobes touching median ocellus; scrobal carina dorsally not raised ( Fig. 22GView FIGURE 22). Flagellum clavate ( Fig. 22AView FIGURE 22), f1 about 1.6, f5 1.05 and f8 0.9× as long as maximum width. Frontal view ( Fig. 22FView FIGURE 22), head 1.16× as broad as high; face finely vertically rugulose-punctate, with dense white pubescence. Malar space 0.45× eye height in lateral view; glabrous adjacent to eye, vertically aciculate, with few sparse hairs. Clypeus in frontal view 1.15× as high as broad, 0.5× as broad as mouth, slightly convex, pointed at middle ( Fig. 22FView FIGURE 22). Mandibles with slender tooth separated from upper edge by deep triangular notch ( Fig. 22FView FIGURE 22). Occiput in posterior view concentrically rugulose-punctate.

Mesosoma dorsally with short pubescence. Pronotum and mesoscutum punctate-reticulate ( Fig. 22GView FIGURE 22), with punctation very dense and transversally confluent, with a transverse microsculpture, which is more evident on mesoscutum; scutellum punctate, punctation closer centrally. Pronotum with discal carina centrally, straight, as long as POL; premarginal carina indicated by slightly raised impunctate line; posterior margin slightly concave, not carinate; lateral panel flat, its lower corner broadly rounded. Mesoscutum in lateral view bowed; notaulus 0.6× as long as its distance from lateral margin. Tegula broadly smooth, with pale yellowish pubescence. Scutellum evenly convex (lateral view), 0.65× as long as maximum breadth in dorsal view ( Fig. 22HView FIGURE 22). Dorsellum 3× as broad as long medially, not carinate, sparsely punctate, smooth along margin ( Fig. 22HView FIGURE 22). Propodeum medially 1.14× as long as dorsellum; punctate-reticulate, posterior margin alveolate; median carina low and wide posteriorly, plicae present ( Fig. 22HView FIGURE 22). Subalar area, mesepimeron and mesepisternum punctate, the latter with oblique microsculpture; mesopleural depression smooth, except the obliquely rugulose antero-dorsal region and the transversely striate postero-dorsal region, anterior border with sparse pilosity.

Legs. Upper edges of fore femur and tibia not carinate. Hind coxa uniformly punctate; upper edge evenly convex, posteriorly with a low translucent very small lobe; with dense white pilosity directed to meso-external edge ( Fig. 22IView FIGURE 22). Hind femur 2.2× as long as broad, excluding teeth; densely regularly punctate, with short dense white pubescence directed to ventral edge which has a basal tooth (basally broader than long) and 10/11 other teeth ( Fig. 22JView FIGURE 22). Hind tibia densely finely punctate, apically produced into long spine with sharp outer spur on top ( Fig. 22JView FIGURE 22).

Wings ( Figs 22C ‒EView FIGURE 22). Fore wing blackish; apical quarter hyaline; uniformly pilose. Stigmal vein almost straight, forming an angle about 55° to R1; as long as marginal vein. Uncus straight, directed towards apex of R1. Apical process of stigmal vein short, rounded, about 0.25× as long as uncus. Hind wing blackish, pilose with glabrous regions basally.

Gaster 2.6× as long as maximum width in dorsal view ( Fig. 22BView FIGURE 22); punctate-reticulate, except tergite I laterally which is sparsely punctate. Tergite I dorsally with deep and rather smooth narrow parallel sided groove that reaches basal fovea ( Fig. 22BView FIGURE 22). Tergite II not visible. Tergite IV medially with a very narrow groove; densely covered with white posteriorly directed hairs. Tergite V medially with a very narrow groove. Tergite VI with a latero-posterior triangular projection, above spiracle level ( Fig. 22KView FIGURE 22). Ovipositor virtually straight, reaching propodeum ( Fig. 22AView FIGURE 22).

Color. Body extensively black. Light brown on: mandible, tegula, tibia and tarsomeres, hind coxa and trochanter, ovipositor sheath. Dark brown on: femur, fore coxa. Propodeum light to dark brown. Yellow on: external side of scape; apex of antennal clava; pronotum with narrow subparallel band centrally interrupted on anterior margin and narrow band on premarginal carina; lateral margins of mesoscutum, not reaching anterior margin; subparallel band centrally interrupted on posterior margin of scutellum; two marks sublatero-posteriorly on dorsellum; posterior half of metapleuron; dorsal edge and postero-ventral maculae on hind coxa; external dorsal edge, external and internal ventral edge on hind femur; in dorsal view, two divergent stripes on antero-dorsal region from base of dorsal groove towards posterior margin on tergite I; in dorsal view, two dull maculae on posterodorsal region of tergite V; oblique stripe subparallel to posterior margin of epipygium, below level of tergite VI spiracle. Fore wing light brown, except apical third hyaline. Hind wing lighter than fore wing, uniformly light brown.

Variation. Head dorsally 2.48× as broad as long. POL about 1.29× OOL, ocellar triangle 2.5: 1 (length: height). Flagellum clavate, f1 about 1.48, f5 1.02 and f8 0.86× as long as maximum width. Clypeus (frontal view) 0.96× as high as broad. Dorsellum 2.62× as broad as long medially. Propodeum medially as long as dorsellum. Hind femur 2.1× as long as broad, excluding teeth; 9/9 other teeth. Ovipositor reaching base of dorsellum. Yellow narrow band medially on tergite IV.

Male. unknown.

Holotype condition. In good condition, left wings inside a gelatin capsule vial, pinned with specimen.

Etymology. From Brazilian Tupi murú  (spine), in reference to the latero-posterior triangular spine on tergite VI.

Measurements. See Table I.

Comments. Leucospis muru  resembles L. propinqua  and L. leucotelus  but these species can be differentiated by the characters in the key and additionally by: the median carina and plicae on the propodeum inconspicuous in L. propinqua  and L. leucotelus  versus conspicuous in L. muru  ; the hind coxa in L. propinqua  and L. leucotelus  has a glabrous area on the posterior depression ( Fig. 21IView FIGURE 21) while in L. muru  the hind coxa is uniformely punctate ( Fig. 22IView FIGURE 22); and tergite VI of female with a latero-posterior triangular projection above spiracle level in L. muru  , absent in the other two species.

Biology. Unknown. The two specimens were collected in a bee's nest but there is no information about the bee species or type of nest where they were collected.

Material examined. (2♀) Holotype. Brazil, Minas Gerais, Brumadinho, Serra da Moeda. Em ninho 16.viii.1998, E.A.B. Almeida leg. [ UFMG ‒IHY ‒1317252]. Paratype. Same data as Holotype [ UFMG ‒IHY ‒ 1317245].


Universidade Federal de Minas Gerais