Urosigalphus carinaverticis Arias-Penna

Carolina, Diana & B, James, 2012, A taxonomic revision of the Colombian species of Urosigalphus Ashmead (Hymenoptera: Braconidae), Zootaxa 3411, pp. 1-54 : 11-13

Urosigalphus carinaverticis Arias-Penna , n. sp.

Figs. 3 A–G

Female.— Body length 4.9 mm.

Body color ( Fig. 3 A): mainly black. Flagellomeres dark brown. Scape apically with a light brown ring, but basally dark brown. Pedicel, anellus, and labrum light brown. Mandible red-brown. Labial and maxillary palps light yellow. Fore and mid legs yellow-brown; hind legs brown except trochanter and trochantellus yellow-brown. Fore wing ( Fig. 3 G): tegula black, but posteriorly dark brown; stigma dark brown. Membrane of both fore and hind wings light brown with brown microtrichiae.

Head ( Fig. 3 A–B). — Subquadrate. Antenna with 12 flagellomeres dark brown; first three flagellomeres longer than wide (0.27:0.10; 0.28:0.10; 0.26: 0.10 mm); last five, except the last one, longer than wide (0.15:0.10; 0.17:0.10; 0.17:0.10; 0.20:0.10; 0.20: 0.10 mm); apical flagellomere longer than penultimate (0.25: 0.15 mm); scape shorter than first flagellomere (0.22: 0.27 mm), but wider than pedicel and first flagellomere (0.12:0.08:0.10); pedicel more than half as long as scape (0.12: 0.22 mm). Torulus located above midline of the eye. Frons short with two longitudinal carinae wider basally, but narrower when touching the median ocellus; frons with additional third carina located medially between them, and a deep central groove, also with two deep and elongated areolae below medium ocellus. Scrobes shallow, wide, not surrounded by a carina; medially smooth, shiny, but laterally with punctures; scrobes reach the dorsal part of lateral ocelli. Lower face strongly convex, without protuberance and with small, dense punctures, but laterally with a shallow longitudinal groove at each side; interspaces narrow shiny and smooth. Fronto-clypeal suture strongly impressed, trapezoid-shaped, with small punctures. Anterior tentorial pit not embedded within a depression. Clypeus convex, with small and dense punctures; interspaces shiny and smooth; apical part reflexed narrow, smooth, shiny, without edge, but basally with a curved fold. Labrum with large punctates and wavy interspaces. Mandible long, stout with transverse strigae; mandible set with two teeth; inferior teeth slightly longer than superior; teeth smooth, shiny, long, slender with sharp apices. Maxillary palps longer than labial. Ocelli oval, distant from each other ( Fig. 3 B), separated by more than the width of lateral ocellus (0.007: 0.01 mm); lateral ocelli with a U-shaped carina only between inner margins. Stemmaticum with large, deep depressions surrounded by a high U-shaped carina between both lateral ocelli, the carina runs next to the ventral part of median ocellus, but does not touch it; stemmaticum not on same plane as vertex, elevated into a weak projection, highest point concave. Eyes without preorbital carina ( Fig. 3 B). Vertex with large and irregular areolae and wavy interspaces, with a high longitudinal median carina that surges from U-shaped carina from stemmaticum. Occiput flat, smooth and shiny. Occipital carina complete. Temple dorsally with small and sparse punctures.

Mesosoma ( Figs. 3 A,C–E). — Projection of propleuron sharp. Pronotum dorsally with deep, diagonally arranged areolae that superficially look like grooves; anteriorly with a longitudinal groove with deep areolae throughout the edge; central area with a smooth and shiny stripe; curvature of pronotom with deep and irregular areolae; posteriorly with punctures of different sizes; ventrally with large, deep areolae. Pronotal lobe sloped toward tegula ( Fig. 3 D), rounded apex. Mesoscutum uneven; lateral mesonotal lobes ( Fig. 3 C) with small and sparse punctures, but anteriorly with irregular areolae; anteriorly sloped and posteriorly convex, edge of lateral mesonotal lobes with deep and irregular foveae; median mesonotal lobe with one apical, transverse, continuous and complete carina with highest point in the middle ( Figs. 3 C–D); median mesonotal lobe with small, sparse and irregular punctures; area of convergence of notauli, with large, irregular areolae that form an inverted triangle. Notauli strongly impressed with large and elongate foveae throughout, notauli near edge of transscutal articulation and with additional row of foveae along the entire length. Scutellum convex, triangular, on same plane as mesoscutum; covered by large, deep and irregular areolae; posteriorly on same vertical plane as posterior scutellar depression; scutellar sulcus with four deep, uneven foveae; posterior scutellar depression with two irregular foveae that fill the whole smooth area. Middle part of metanotum, below posterior scutellar depression, with a weak projection. Propodeum antero-posteriorly short, symmetrical; crossed by high MLC projected and conspicuous in lateral view ( Fig. 3 D); ATC high with truncate middle part that later rises, but does not align at the same length of MLC; AMA absent ( Fig. 3 C); posterior wall flat. Metapleuron with large, regular, deep areolae. Mesopleuron with epicnemial carina ( Fig. 3 D), but without sternaulus; mesopleuron convex; shiny central area with very sparse and small punctures; dorsally with large, irregular and deep depressions arranged in two rows; ventrally with a dent that bears irregular and large foveae; anteriorly with elongate, narrow, flat area that bears small, dense punctures throughout the edge; posteriorly scrobiculate. Mesosternum flat ( Fig. 3 E), small and sparse punctures with a complete central row of heterogeneous foveae surrounded by carina, each lateral part with two longitudinal carinae, space between carinae anteriorly wider than posteriorly; mesosternum near fore coxa with a high transverse carina with two elevations both of same height below each fore coxa; mesosternum near mid coxa with a semicircular area intercepted by lateral carinae of mesosternum.

Wings ( Figs. 3 A,G). — Fore wing ( Fig. 3 G): veins M+CU and 2RS markedly curved (sinuate), vein 3RSb tubular, very distant from stigma (0.68 mm); subbasal cell longer than basal (1.53: 1.38 mm); stigma short. Fore wing: length 3.90 mm, width 1.17 mm; hind wing: length 2.85 mm, width 0.75 mm.

Metasoma ( Figs. 3 A,G). — Carapace in lateral view teardrop-shaped ( Fig. 3 A); anteriorly with strong substrigulae that cross more than half the length of the carapace. Apex of carapace with several tubercles of different sizes ( Fig. 3 F) with a large tubercle on one side; in lateral view region above tubercles convex and with a small, smooth, shiny area. Ovipositor ( Fig. 3 A) length 1.7mm. Carapace length 2.25 mm.

Male.— Unknown.

Biology.— Unknown.

Material examined.— Holotype, female, Colombia: Amazonas, PNN [Parque Nacional Natural] Amacayacu, San Martín, 3º46´S 70º18´W, 150m, Malaise, 24.iv. 5.v.2000, A. Parente leg., M. 88, IAvH-E 64535. Deposited in IAvH-E.

Etymology.— From vertex (Latin, noun, masculine) = the summit of anything and c arina (Latin, noun, femenine) = the keel of a ship. The name refers to the structure, a carina, present on the vertex.

Figures

FIGURE 3. Urosigalphus carinaverticis n. sp. (A) habitus; (B) head, dorsal view; (C) head, frontal view; (D) mesosoma, dorsal view; (E) mesosternum; (F) tubercles, apex of carapace, ventral view; and (G) fore wing.