Senectius, L H Rolston, 1987

Senectius , new genus

Type species. Senectius metallicus , new species.

Diagnosis. Apex of head narrowly rounded, tylus a little longer than juga; lateral jugal margins concave above antennifers; anteocular processes lacking. Interocular width about half width ofhead across eyes. Imaginary line traversing head at posterior limit of reticulated part of eyes passing through ocelli when dorsum ofhead horizontal ( Fig. 13). Antennae 5 - segmented; basal segment reaching apex of head. Bucculae acutely toothed anteriorly, lobed posteriorly ( Fig. 14). Basal segment of rostrum projecting beyond bucculae, rostral apex lying between metacoxae.

Scutellar length and basal width subequal; width of scutellum at distal end of frena nearly 2.5 of basal width. Costal angle of each corium reaching last tergite before genitalia. Anterior margins of propleura not produced. Ostiolar ruga on each side reaching about 3 / 4distance from mesial margin of ostiole to lateral margin of meta pleuron. Femora armed on inferior surfaces with pairs of small tubercles, each bearing seta ( Fig. 15); tibiae sulcate dorsally.

Prostemum shallowly concave longitudinally with weak medial carina anteriorly. Mesosternum weakly carinate medially. Metastemum nearly flat, sloping slightly ventrad from anterior to posterior margin.