222 PEOCEEniNGS OF THE NATIONAL MUSEUM. vol.51. 



the hemelytra and almost entirely covered by them, beneath at the 

 base with a pointed tubercle, the point of which is directed ob- 

 liquely upward toward the depressed metasternum, apical angles of 

 the segments not at all prominent, apical margin of sixth dorsal seg- 

 ment sinuated; the male with two genital segments visible on the 

 underside, the second segment consisting of the underside of the pro- 

 truding dorsal genital segment. Tibiae cylindrical. 



This genus is intermediate in structure between Stal's divisions 

 1 (12) and 12 (1). It differs from Ditoinotarsus Spinola and Hy- 

 perhius Stal by the keeled mesosternum, the structure of the base of 

 the venter, and somewhat shorter scutellum ; from the former, more- 

 over, by having the ocelli placed nearer to the eyes, from the latter 

 by less convex head and pronotum, and not at all callose pronotal 

 lateral margins. From Sinopla Signoret it is distinguished by the 

 position of the ocelli; more rounded, not elevated pronotal lateral 

 margins, more rounded, not prominent humeral angles, shorter scu- 

 tellum, straight apical margin to corium, and by having the straight 

 spine of the second ventral segment replaced by an acute tubercle 

 curved upward, with its apex touching the surface of the meta- 

 sternum. 



Type of the genus. — Acrophyma frigidula, new species. 



ACROPHYMA FRIGIDULA, new species. 



Opaque, w^hitish or pale ochraceous; above thickly, beneath less 

 thickly and more finely punctured with black; dorsum of abdomen 

 blackish, shining, impunctate, dark ferruginous in the middle, con- 

 nexivum impunctate, black, segments 2-5 with an obliquely tri- 

 angular ochraceous basal spot, sixth (and sometimes fifth) segment 

 with the whole basal half ochraceous, abdomen beneath with an ob- 

 long rectangular black spot at the apical angles of the segments and 

 in the male with a median fuscous vitta or a series of fuscous spots 

 not continued through the genital segments, metapleurae with a 

 black spot at the end of the orificial fold; antennae, rostrum, and 

 legs pale yellowish testaceous, first antennal joint with a fuscous 

 streak on the inside, last three joints fuscous black, excepting base 

 of these joints and apex of third joint; last joint of rostrum piceous; 

 femora dotted with fuscous and with an incomplete subapical fus- 

 cous ring, a superior basal dot to tibiae and their extreme tip, and 

 apex of tarsal joints fuscous. Head a little broader than long, a 

 streak on the underside of juga and another shorter streak before 

 the eyes piceous; second joint of antennae half as long again as first, 

 third subequal to first or a little shorter, fourth and fifth each a 

 little longer than second and more incrassated. Pronotum two and 

 a third times broader than long in the middle. Scutellum with an 

 impunctate slightly raised median line in the apical half. Mem- 



