A taxonomic revision of the Colombian species of Urosigalphus Ashmead (Hymenoptera: Braconidae)
Author
Carolina, Diana
Author
B, James
text
Zootaxa
2012
3411
1
54
journal article
44585
10.5281/zenodo.210433
1630ec11-dcec-4f11-b99d-903b27b206c5
1175-5326
210433
Urosigalphus colordissimilis
Arias-Penna
,
n. sp.
Figs. 6
A–G
Female.—
Body length 3.0 mm.
Body color (
Fig. 6
A): mainly black. Flagellomeres dark brown. Scape, pedicel (
Figs. 6
B–C), annellus, labrum and mandible yellow-brown. Labial and maxillary palps light yellow. Fore and mid legs yellow; hind legs brown but throchanter, trochantellus, and apex of tibia yellow-brown. Fore wing (
Fig. 6
G): basally C+Sc+R vein darker than apically, tegula dark brown with a central brown spot; stigma light brown. Membrane of both fore and hind wings light brown and brown microtrichiae.
Head
(
Figs. 6
A–C).—Subtriangular. Antenna with 14 flagellomeres; first three flagellomeres longer than wide (0.18:0.05; 0.17:0.05; 0.15:
0.05 mm
); last five, except the last one, as long as wide (0.07:0.07; 0.08:0.07; 0.08:0.07; 0.08:0.07; 0.09:
0.07 mm
); apical flagellomere longer than penultimate segment (0.07:016 mm) (
Fig. 6
A); scape smaller than first flagellomere (0.16:
0.18 mm
), and wider than pedicel and first flagellomere (0.08:0.06:
0.05 mm
); pedicel half as long as scape (0.08:
0.16 mm
). Torulus located at midline of the eye (
Fig. 6
B). Frons with a longitudinal median carina, which arises from ventral margin of toruli (
Fig. 6
C), crosses the frons and does not reach the ventral margin of median ocellus; longitudinal median carina higher dorsally than ventrally; frons also with a large and shiny depression below median ocellus which is crossed by longitudinal median carina; each side of longitudinal median carina with several transverse carinae alternatingly distributed, two of them closer to deep depression and surround it partially (
Fig. 6
C); laterally frons with dense and small punctures of different sizes which decrease in size and more separated when closer to vertex. Scrobes deep, width, not surrounded by a carina, smooth, shiny; scrobes reach the vertex. Lower face strongly convex (
Fig. 6
B), with a central, weak protuberance below longitudinal median carina; lower face with small and dense punctures distributed homogeneously; interspaces shiny and smooth. Fronto-clypeal suture strongly impressed, round, with small and dense punctures. Anterior tentorial pit not embedded within a strong depression. Clypeus convex at different level than lower face; clypeus with small and sparse punctures, interspaces width smooth and shiny; medioapical margin of clypeus slightly concave, apical part reflexed narrow, smooth with a defined edge but without carina. Labrum with small and dense punctures. Mandible long and slender, with carinate-rugose; mandible set with two smooth, shiny teeth; superior teeth longer than inferior, teeth long and slender, with sharp apex. Maxillary palps much longer than labial. Ocelli round (circular); lateral ocelli without carina, distant from each other, separated by more than diameter of lateral ocellus (0.008:
0.005 mm
); stemmaticum slightly higher than vertex (
Fig. 6
B), forming a projection like a plateau, highest point with a weak crack; mostly smooth, but some small and sparse punctures; interspaces wide and shiny. Eyes without preorbital carina. Vertex with sparse and very small punctures, without longitudinal median carina, pubescence long and scarce; area close to occiput sloped. Occiput concave, smooth and shiny. Occipital carina present laterally, absent dorsally. Temple and gena with small and sparse punctures distributed homogeneously; interspaces wide, smooth and shiny.
FIGURE 6
.
Urosigalphus colordissimilis
n. sp.
(A) habitus; (B) head, frontal view; (C) head, dorsal view; (D) mesosoma, dorsal view; (E) mesosoma, lateral view; (F) mesosternum; and (G) fore wing.
Mesosoma
(
Figs. 6
D–F).
—
Projection of propleuron blunt. Pronotum (
Fig. 6
E), antero-dorso ventrally with small, homogeneous and sparse punctures although curvature of pronotum with deep and semicircular foveae; central area smooth and shiny (
Fig. 6
A); dorsally with small and dense punctures. Pronotal lobe sloped toward tegula with a deep depression; point of inflection carinated; apex rounded. Mesoscutum uneven (
Fig. 6
D) with small, sparse punctures; wavy interspaces in anterior median mesonotal lobe; lateral mesonotal lobes anteriorly sloped and posteriorly convex and lateral edges with foveae of similar sizes throughout; median mesonotal lobe much higher than lateral lobes with a longitudinal median (
Fig. 6
D) wave and discontinuous carina more than half as long as mesonotal lobe; this carina posteriorly ends with one fovea; area of convergence of notauli with large, deep and irregular areolae of different sizes. Notauli complete, strongly impressed with elongate foveae along entire length; notauli near edge of transscutal articulation and without additional row of foveae throughout. Scutellum slightly convex, triangular, on same plane as mesoscutum (
Fig. 6
A) and with large, deep and irregular foveae but near scutellar sulcus shiny and with scarce small punctures; posteriorly on same vertical plane as posterior scutellar depression; scutellar sulcus with four deep and heterogeneous foveae; posterior scutellar depression with two elongate and large foveae that fill great part of smooth area; middle part of metanotum below posterior scutellar depression with a conspicuous projection in lateral view (
Fig. 6
E). Propodeum anteroposteriorly short (
Fig. 6
D), asymmetrical; MLC short without anterior projection (spine); ATC with a strong invagination and later reaching the same length as MLC; AMA irregular-shaped (
Fig. 6
D); LLC inclined; posterior wall of propodeum flat and with dense, large areolae with well delimited edge, interspaces narrow. Metapleuron with large, dense, irregular areolae. Mesopleuron lacks epicnemial carina and sternaulus (
Fig. 6
E); mesopleuron convex; shiny central area with small, sparse punctures; dorsally with a semicircular dent which forms a prominent edge that bears foveae and a deep transverse groove below the tegula; ventrally with a dent that forms a prominent edge and bears deep, large foveae throughout, edge inclined; anteriorly with elongate, narrow, flat area that bears small, dense punctures throughout the edge; posteriorly scrobiculate. Mesosternum flat with small and sparse punctures, with a complete central row of foveae of similar size and shape although the first anterior fovea, the largest of all, foveae surrounded by carinae; lateral parts with high carinae that bear small and homogeneous foveae throughout; mesosternum next to fore coxa with a sharp edge of the same height throughout that intercepts the lateral carina; mesosternum next to mid coxa with a carinated, triangle-shaped area above each mid coxa (
Fig. 6
F), lateral carina also intercepts it in the vertex of the triangle.
Wings
(
Figs. 6
A,G).
—
Fore wing (
Fig. 6
G): vein M+CU markedly curved (sinuate); vein 3RSb tubular, distant from stigma (
0.43 mm
); subbasal cell as long as basal (0.93:
0.93 mm
); stigma short and relatively round. Fore wing: length
2.25 mm
, width
0.75 mm
; hind wing: length
1.85 mm
, width
0.50 mm
.
Metasoma
(
Figs. 6
A).
—
Carapace in lateral view teardrop-shaped (
Fig. 6
A); anteriorly with strong substrigulae that cross more than half the length of the carapace; area between the carinae lacunose. Apex of carapace without tubercles (teeth), great part smooth but with some small punctures. Ovipositor length
1.38 mm
. Carapace length
1.4 mm
.
Male.—
Unknown.
Biology.—
Unknown.
Comments.—
The scrobes are so deep that stemmaticum looks more elevated than vertex, so stemmaticum is at the same height as vertex.
Material examined.—
Holotype
, female,
Colombia
:
Amazonas
PNN [Parque Nacional Natural] Amacayacu, Matamata m2,
3º41´S
70º15`W
,
150m
, Malaise,
20–26.iii.2000
, A. Parente leg., M.96, IAvH-E 34311. Deposited in IAvH-E.
Etymology.—
From
color
(Latin, noun, masculine) = color, tint, hue and
dissimilis
(Latin, adjective) = unlike, dissimilar, different. The name refers to the difference in coloration of the scape and pedicel with respect to the flagellomeres.