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
Author
Lima, Alessandro Rodrigues
Author
Dias, Priscila Guimarães
text
Zootaxa
2018
2018-06-26
4441
1
1
45
journal article
29829
10.11646/zootaxa.4441.1.1
384caabe-ae5b-4c40-b147-ecb1e0c7af84
1175-5326
1297969
8E7CD7D8-650B-4430-956F-53045F5FD65A
Leucospis opalescens
Weld, 1922
(
Figs 18
,
19
)
Leucospis opalescens
Weld 1922
: 15
–17, fig. 9. Holotype ♀: Brazil, Chapada (USNM);
Burks 1961
: 540
(compared
L. xylocopae
);
Bouček 1974a
: 77
; figs 75, 81–86;
De Santis 1980
: 273
(catalog);
Noyes 2017
(
online
catalog).
Diagnosis.
Mesoscutum and scutellum posteriorly with yellow bands, pronotum often with anterior band weakly indicated in middle. POL about 1.3‒1.4× OOL; inner margin of the eyes emarginate; clypeus apically bilobate, without a conspicuous median tooth; pronotum without premarginal carina; dorsellum convex, margin carinate, moderately pilose; propodeum pilose, median carina present, plicae absent; hind coxal depression uniformly punctate, with a conspicuous translucent lobe dorso-laterally; hind femur about 2.2× as long as broad, teeth excluded; fore wing with apical fifth infuscate and apical process of stigmal vein about 0.8× as long as uncus; in female, tergite I with median ridge and diverging broad furrows; tergite VI with spiniform projection at posterior margin, below spiracle level; ovipositor reaching the dorsellum; in male, gaster petiolate, tergite I with yellow band, and two more narrow yellow bands on the carapace in dorsal view; in lateral view, tergite VI oblique relative to tergite V.
Description
(Male, pinned).
Head
as broad as pronotum posteriorly, dorsally 2.5× as broad as long; temples half the longest breadth of median ocellus. Occipital carina high at ocellar region, dorsally complete, extending laterally to apical third of eyes height in lateral view. POL about 1.34× OOL, ocellar triangle 2.85: 1 (length: height); lateral ocelli touching occipital carina. Vertex densely punctate-reticulate, except for a smooth depression from posterior margin of median ocellus to scrobes. Scrobes not touching median ocellus; scrobal carina dorsally slightly raised. Frontal view, head 1.38× as broad as high; face finely vertically rugulose-punctate, with sparse white pubescence. Malar space 0.26× eye height in lateral view; glabrous adjacent to eye, vertically aciculate, with few sparse hairs. Clypeus in frontal view 0.85× as high as broad, 0.5 as broad as mouth, apically bilobate, without a median tooth. Mandibles with slender tooth separated from the upper border by narrow and shallow triangular notch. Occiput in posterior view concentrically rugulose-punctate.
FIGURE 18.
Leucospis opalescens
♀
A
. Habitus
, lateral view.
B
. Habitus, dorsal view.
C
. Forewing.
D
. Forewing, stigma region in detail.
E
. Hind wing.
F
. Head, frontal view.
G
. Head and mesossoma, dorsal view.
H
. Scutellum, dorsellum and propodeum, postero-dorsal view.
I
. Hind leg, lateral view.
J
. Posterior region of metasoma, lateral view. Arrow shows a spiniform projection on sixth tergite. Scale bar = 1 mm. UFMG–IHY–1305651
FIGURE 19
.
Leucospis opalescens
♂
A
. Habitus
, lateral view.
B
. Habitus, dorsal view.
C
. Metasoma, ventral view.
D
. Head and mesosoma, dorsal view.
E
. Hind leg, lateral view. Scale bar = 1 mm. UFMG–IHY–1305653
Mesosoma
dorsally with short pubescence. Pronotum and mesoscutum punctate-reticulate, with punctation very dense and transversely confluent, with transverse microsculpture, which is more evident on mesoscutum; scutellum punctate-reticulate, with very subtle longitudinal microsculpture. Pronotum without discal and premarginal carinae; posterior margin slightly concave, carinate centrally; lateral panel concave, its lower corner broadly rounded. Mesoscutum, in lateral view, bowed; notaulus absent. Tegula broadly smooth, with pale yellowish pubescence. Scutellum evenly convex in lateral view, 0.8× as long as maximum breadth in dorsal view. Dorsellum 3× as broad as long medially, margined with narrow upturned carina, alveolate along margin. Propodeum medially 2.24× as long as dorsellum; punctate-reticulate, posterior margin alveolate; median carina raised and thin, plicae present only anteriorly. Mesepisternum rugulose-punctate; subalar area and mesepimeron punctate, the latter with oblique microsculpture; mesopleural depression smooth, except for punctate antero-ventral region; anterior border with sparse pilosity.
Legs.
Upper edges of fore femur and tibia strongly carinate. Hind coxa uniformly punctate; upper edge evenly convex, posteriorly with a large triangular translucent lobe; with dense white pilosity directed to meso-external edge. Hind femur 2.17× 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 11 other teeth (
Fig. 19E
). Hind tibia densely finely punctate, apically oblique with a long sharp outer spur.
Wings
. Fore wing hyaline; slightly infumate along anterior and apical borders; uniformly pilose; veins light brown. Stigmal vein almost straight, forming an angle about 42° to R1; about as long as marginal vein. Uncus straight, directed towards apex of R1. Apical process of stigmal vein as long as uncus (
Fig. 18D
), rounded. Hind wing hyaline, sparsely pilose with glabrous regions basally; veins light brown.
Gaster
2.5× as long as maximum width in dorsal view; punctation sparse on sternites and almost inconspicuous on tergite II. All tergites distinct, though third to sixth fused into a carapace, but indicated by much sparser punctation at posterior margins. Tergite I 0.8× as broad as long; 0.4× as broad as maximum breadth of metasoma; dorsally with deep small triangular basal fovea. Epipygium sligthly convex in lateral view, with distal margin convex; densely punctate; no longitudinal keels. Last two sternites shallowly depressed in the midline; last one apically rounded.
Color.
Body extensively black. Light brown on: scape, tegula, legs except tarsomeres. Yellow on: pronotum with tiny central spot and narrow transverse band posteriorly, interrupted centrally; posterior margin of mesoscutum; posterior margin of scutellum; entire dorsellum; posterior half of mesepisternum; dorsal edge and postero-ventral maculae on hind coxa; hind femur dorsal edge externally, ventral edge external and internally; posterior half of tergite I; entire sternite II; two lateral spots on sternite III; two yellow bands on carapace, at middle of tergites IV and V; two lateral spots on tergite VI, above the level of spiracle; green purple metallic shine scattered over entire body, although more evident in the face, mesopleuron and propodeum.
Measurements.
See table I.
Distribution.
Brazil
(
Pará
,
Mato Grosso
,
Mato Grosso do Sul
,
Minas Gerais
)
Comments.
Leucospis opalescens
is an endemic Brazilian species, which was previously recorded from the Amazon and Pantanal. The new records presented here extends its distribution southwestward to the Brazilian Savannah (
Figs 25
,
26
). The presence of the lateral posterior projection of tergite VI in
L. opalescens
females (
Fig. 18J
) is a valuable character for differentiating it from females of
L. signifera
, a separation that was previously difficult (
Bouček, 1974a
).
Biology.
Unknown.
Material
examined.
(
1♀
,
1♂
)
Brasil
,
Minas Gerais
,
Paraopeba
,
Estação Florestal de Experimentação
,
19°20'S
,
44°20'W
,
734m
‒
750m
,
14.x.1993
, H.R. Pimenta
leg.
[1♀ UFMG–IHY–1305651; 1♂, UFMG–IHY– 1305653].