Comprehensive Description

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Description

Head. Ivory band on the anterior marign of crown present, continuous. Antennal flagellum regular, tapering to final diameter in basal third. Antennal ledges in dorsal view not protruding.

Thorax. Anterior part of pronotum with a pair of conspicuous lateral yellow or orange spots or group of spots. Anepisternum white. Lateral black maculae on mesonotum distinct, solid, or with only small light marking centrally (or entire mesonotum mostly black) or empty inside, indistinct, or absent.

Wings. Forewing veins darker than background, costal area usually reddish. Apical cells of forewing membranous, entirely hyaline. R vein bordering the first anteapical cell black. Brochosome spots on female forewings (present only during egg-laying in some species) absent or unknown.

Legs. Posterior surfaces of mesofemur and metafemur yellow to red. Anterior surface of metatibia with short hairs immediately dorsally of anteroventral macrosetal row or without hairs dorsally of anteroventral macrosetal row. Anteroventral row of macrosetae on female metatibia slightly elongated and curved or not, same as in male.

Abdomen. Red area on caudal abdominal terga present on terga VII + VIII + extends to pygofer & anal tube.

Male Genitalia. Subgenital plate with light and dark pattern. Lateral process of aedeagus in lateral view strongly recurved posterad. Caudal process of aedeagus in lateral view longer than half aedeagal shaft, but not reaching apex or reaching beyond apex of aedeagal shaft. Lateral process of aedeagus in caudal view strongly recurved posterad. Caudal process of aedeagus in caudal view thickened near or beyond middle. Apices of caudal processes of aedeagus in caudal view parallel or converging or crossed. Bases of caudal processes of aedeagus in caudal view separated. Pair of lateral dentiform processes on aedeagal shaft in caudal view present. Male pygofer lobes dorsocaudally rounded. Sensilla on inner surface of pygofer dorsocaudally absent. Apex of aedeagal shaft in caudal view membranous along midline.

Female Genitalia. Female sternum VIII consists of single plate (=lateral plates broadly fused). Sclerotized plates of sternum VIII completely fused. Lateral margin of sclerotized plates of sternum VIII entire. Anterolateral fold of sclerotized plates of sternum VIII absent or membranous, incospicuous. Posterior margin of sternum VIII with hemispherical bulge medially. Sclerotized plates of sternum VIII fused anteriorly. Sclerotized plates of sternum VIII diverging posteriorly. Inner posterior angle of each sclerotized plate of sternum VIII not produced.

Distribution. Eastern U.S., E. Canada or Texas.

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Creative Commons Attribution 3.0 (CC BY 3.0)

R. Rakitov, S. Krishnankutty, and D. Dmitriev

Source: 3I Interactive Keys and Taxonomic Databases

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