Genus Xynotingis Drake, 1948

Xynotingis Drake, 1948b: 8 . Type species by original designation: Xynotingis hoytona Drake, 1948 .

Diagnosis. Recognized among other tingid genera by a combination of the following characters: body rotund; maximum width across hemelytra wider than maximum width across paranota; head longer than its maximum width across compound eyes, with five spines; antennal segments I separated from each other at their bases; bucculae contiguous with each other at anterior ends; rostrum reaching abdominal sternite IV; pronotum convex in anterior part, tricarinate; lateral margin of pronotum not emarginate in anterior part; pronotal disc covered with minute pubescence as other thoracic parts; hood roof-shaped, lower than pronotal disc at highest part; pronotal carinae carinate; paranotum reflexed, expanding inward, without longitudinal ridge, not bulged upward in posterior part, not forming a cyst; outer margin of paranotum resting on pronotal disc in its entire length; posterior process well-developed; anterior margins of hemelytra not parallel to each other at rest; costal area distinct; subcostal area subhorizontal; discoidal area flat; Cu (cubital) and R+M (radiomedial) veins carinate; hypocostal lamina with a single row of areolae in its entire length; ostiolar peritreme well-developed; metasternum as wide as mesosternum; metasternal laminae separated from each other at posterior ends; abdominal sternites IV–VIII in male and IV–VII in female each with a transverse furrow throughout their width; pygophore elevated at center of venter; ovipositor with well-developed ovivalvula at base; and paratergite IX in female unilobed.

Remarks. Xynotingis comprises a single species, X. hoytona, distributed in Japan and China (Drake 1948b; Dang et al. 2014).

Xynotingis resembles Physatocheila in general appearance but can be easily distinguished by the following characters: body rotund; head longer than its maximum width across compound eyes; and antennal segments I separated from each other at their bases.