Myiomma uniformis, Henry & Carpintero, 2012

Myiomma uniformis View in CoL , n. sp.

( Figs. 44–48)

Diagnosis. Myiomma uniformis can be distinguished by the narrowly pale hind margin of the eyes ( Figs. 46, 47); the dark brown antennal segment I and mostly dark brown antennal segment II, with the dorsal edge and narrow apex pale; the uniformly dark brown dorsum ( Fig. 44); the dark brown front and middle femora and the partially dark brown hind femur ( Fig. 45) with only the apex pale yellowish brown; and the mostly dark brown tibiae with the apical halves of the front and middle tibiae and the apical one fourth of the hind tibia pale yellowish brown.

Description. Female ( holotype): Length 2.33 mm, width 1.30 mm; cuneus inner length 0.43 mm, width 0.35. Head: Length 0.24 mm, width across eyes 0.59 mm, interocular width across ocelli 0.14 mm. Labium: Length 1.22 mm. Antenna: Segment I length 0.11 mm, II 0.58 mm; III and IV missing. Pronotum: Length 0.38 mm, basal width 1.12 mm.

COLORATION: Head: Eyes dark reddish brown, narrow posterior margin and area behind ocelli white; ocelli clear; narrow interocular space and frons black, clypeus slightly paler dark brown or fuscous. Labium: Segment I brown, tinged with red; segments II and III brown; segment IV dark brown. Antenna: Segment I dark brown or fuscous, II dark brown ventrally, paler yellowish brown dorsally; segments III and IV missing. Pronotum: Uniformly dark shiny brown. Mesoscutum: Dark shiny brown, with posterior edges on either side paler brown. Scutellum: Dark shiny brown, with only apex pale yellow. Hemelytron: Uniformly dark shiny brown, including cuneus; membrane translucent smoky brown. Ventral surface: Propleura uniformly fuscous to black; remainder of thorax and abdomen dark brown to fuscous. Ostiolar evaporative area: Dark brown; auricle white on dorsal half, fuscous ventrally. Legs: Coxae and trochanters dark brown; fore and middle femora dark brown with apices narrowly pale, hind femur fuscous with apex pale yellow; fore and middle tibiae pale yellow with basal third of each dark brown, hind tibia dark brown with apical fourth pale yellow.

STRUCTURE, TEXTURE, AND VESTITURE: Head: Eyes nearly contiguous in front, separated by a distance slightly greater than the diameter of an ocellus; hind lateral margin with five erect, bristlelike setae; ocelli large, contiguous with inner margin of eyes, nearly contiguous with each other, separated by about half the diameter of an ocellus, set slightly above eyes on a low mound ( Figs. 46, 48); frons shiny, strongly wrinkled, with a few scattered short, recumbent setae. Labium: Extending nearly to base of ovipositor. Antenna: Segment I short, barrel-shaped; segment II long, slender, gradually enlarging toward apex, with short, sparse, recumbent setae shorter than one fourth the diameter of the segment; segments III and IV missing. Pronotum: Weakly convex, shiny, evenly and deeply punctate; calli indistinct; lateral margins straight, carinate, and narrowly explanate; posterior margin sinuate through middle; with scattered, short, recumbent setae. Mesoscutum: Evenly punctate, with a few short, recumbent setae. Scutellum: Weakly punctate, transversely rugose, with scattered, short, recumbent setae. Hemelytron: Broadly rounded or convex laterally; with short, evenly scattered, recumbent setae.

Male: Unknown.

Etymology. The specific name uniformis is given to denote the uniformly brown dorsum, except for the pale apex of the scutellum.

Host. Beaten from Ruprechtia laxiflora Meisn. [ Polygonaceae ].

Distribution. Known only from Cordoba Province, Argentina.

Type material. Holotype ♀, Argentina, Prov. Cordoba, 30 km S of Mina Clavero , 31 E53.019 'S, 65 E01.280 W, elev. 883 m, 25 Feb. 2006, T. J. Henry & D. Forero, beaten from Ruprechtia laxiflora Meisn. [ Polygonaceae ] [D. Carpintero, P. Dellapé, D. Forero, T. Henry, D. Rider, & M. Sweet expedition] ( MACN).