338 Mr. G. W. Kirkaldy's Memoir on the 



smooth, shining, and polished, deeply impressed and constricted in 

 the middle, with a distinct annuliform collar, lateral margins of 

 anterior lobe rotundate, obtnsangular, not reaching laterally as far 

 as the eyes, subtuberculate. Posterior lobe laterally subcarinate> 

 straight, widely diverging posteriorly. Scutellum smooth, shining, 

 anteriorly depressed. Elytra long, subparallel, clavus and corium 

 coarsely and thickly punctured ; cuneus somewhat deeply excised, 

 much longer than wide ; membrane with two cells. Femora not 

 incrassate ; third segment of posterior tarsi longer than the other 

 two together. 



This genus probably belongs to the Gapsaria, but has 

 apparently no near relations. 



Imogen Formosa, sp. nov. 



Head above and beneath (except at base of vertex), basal two 

 segments of antenna?, posterior half of scutellum, elytra, posterior 

 margin of pronotum except medianly, basal two segments of rostrum, 

 abdomen above and beneath, sterna more or less, femora, etc. black- 

 ish or blackish-violet. Base of vertex, pronotum, anterior half of 

 scutellum, propleura, etc., apical two segments of rostrum, yellowish- 

 orange ; anterior tibiae, tarsi and third segment of antennae 

 pallid yellow. Posterior tibiae and tarsi black annulated with whitish. 

 Vertex, between the eyes, about two-sevenths wider than the two eyes 

 together. Rostrum reaching to about the middle of the mesosternum. 

 Second segment of antennas three times as long as the first which 

 is two- fifths longer than the third. 



Long. 5 mm. (to apex of elytra 6 mm.). Breadth 2 mm. 



Hob. Birara ( Willey). 



Family NAUCORIDiE. 



Genus Mononyx, Laporte. 



Mononyx, Laporte, 1832-3, Essai, p. 16; Montandon, 

 1899, Bull. Sci. Bucarest, VIII, nos. 4 and 5, pp. 4 and 5. 



Not found in America, north of Mexico ; or in the 

 Palasarctic Region. 



M. mixtus, Montandon. 

 Mononyx mixtus, Montand., op. cit. p. 15. 



