1904.] APRICAX PHYTOPHAGOUS COLEOPTERA. 269 



the basal joint thickened, subquadrate, the second short, third 

 and following joints nearly equal ; thorax ti'ansverse, convex, the 

 sides strongly rounded and widened at the middle, slightly con- 

 stricted at the base, the basal margin with a depression at each 

 side, anterior margin straight, anterior angles obtuse, posterior 

 ones distinct but not produced, the surface irregularly punctured 

 and r^^gose ; scutellum trigonate ; elytra widened at the middle, 

 pointed at the apex, with closely arranged rows of punctures, the 

 interstices more or less convex, their epipleurse broad, non-pubes- 

 cent ; legs slender, the tibiae gradually widened and sulcate, third 

 joint of the tarsi scarcely lobed, claws simple ; prosternum 

 narrowly elongate ; mesosternum short ; metasternum transverse 

 and very short ; anterior cotyloid cavities closed. 



As will be seen by the above-given details, the insect for which 

 this genus is proposed is allied to Timarcha and Strumatojjhyma 

 and partly to Colaphus and Cyrtonus, but with the last two 

 genera it has only a somewhat similar appearance in common, as 

 the closed anterior cavities remove the species from these groups. 

 The shape of the palpi, narrow prosternum, and general differences 

 in shape, &c., separate the genus from the two first-named genera. 

 Potaninia Weise is certainly also very closely allied, but is 

 winged, the thorax is of different structure, and the prosternum 

 is much wider ; the legs also differ. (The insect upon which 

 Weise founded his genus had been previously described by 

 Baly as Entomoscelis assamensis.) fSemenoioia Weise agrees with 

 Timarchella in the wingless body, but as the author says nothing 

 about the state of the coxal cavities and places the genus near 

 Chrysomela, these parts ai-e presumably open. 



Timarchella braunsi, sp. n. 



Obscure aeneous, opaque, the antennae and legs dark fulvous, 

 thorax coarsely punctured ; elytra closely punctate-striate, the 

 interstice longitudinally convex. 



Length 6 millim. 



Head finely punctured, with an elongate triangular fovea, more 

 or less fulvous with aeneous gloss ; antennae dark fulvous, extending 

 to about the middle of the elytra ; thorax transvei'se, convex, con- 

 stiicted at the sides near the base and to a less extent anteriorly, the 

 surface unevenly and coarsely punctured, with a bi-oad but rather 

 obsolete depression at the base near the posterior a.ngles, the lateral 

 margins slightly thickened ; elytra with twelve rows of closely 

 placed and distinct punctures, the interstices slightly ( cJ ) or 

 more strongly and interi-uptedly ( 5 ) convex ; below and the le^s 

 fulvous. 



Hah. Willowmore, Cape Colony {Dr. Brauns). 



I received both sexes from Dr. Brauns ; the male organ is 

 slender, subcylindrical, and strongly pointed, with a longitudinal 

 sulcus above ; in the female, the elytral interstices form short 

 elongate tubercles near the suture and the others are more 

 distinctly convex than in the male ; the general colour is a dull 



