Xenogenus Berg, 1883

Pall, José Luis & Coscarón, María del Camen, 2012, The Rhopalidae (Hemiptera: Heteroptera) of Argentina, Journal of Natural History 46 (23 - 24), pp. 1441-1465 : 1454-1455

Genus Xenogenus Berg

( Figure 2C )

Xenogenus Berg, 1883: 252 . Type of genus: Xenogenus picturatum , monotypic.

Diagnosis. Body elongate; head longer than broad; first antennal segment shorter than median length of head; slightly surpassing tylus; fourth antennal segment as long as or longer than third; pronotum broader than long; mesosternum grooved for labium; hind femora incrassate with two rows of small spines of uniform length; reaching tip of abdomen; hind tibiae slender; first hind tarsal segment one and a half times as long as second and third together; all tergal sutures obliterated; no brachypterous forms known; hemelytra covering abdominal connexiva.

Figures

Figure 2(A–H). (A) Head and pronotum; (B) clypeus; (C) Xenogenus Berg; (D) head and pronotum; (E) Liorhyssus Stål; (F) connvexival segment; (G) Niesthrea Spinola; (H) Corizus Fallén.