123 



MIMASTRA COSTATIPENNIS sp. n. 



Pale testaceous, the antennse and tarsi, piceous, thorax transver- 

 sely sulcate, impunctate, elytra closely and distinclly punctured, 

 the interstices longitudinally costate. 



Lenglhe 7 mill. 



Elongate and parallel, the head impunctate, the frontal élévations 

 broadly oblique, antennae extending to the apex of the elytra, the 

 third and following joints very elongate, equal ; thorax twice as 

 broad as long, subquadrate, the sides constricted at the base, the 

 dise wilh a transverse, slightly sinuate sulcus, impunctate, scutel- 

 lum sometimes piceous, elytra with aboutsix more or less distinct 

 costae, the interspaces closely punctured, below coloured as 

 above, legs slender, the femora with a piceous stripe above, the 

 knees likewise darkened, the tibise closely pubescent, the tarsi 

 blackish; the last abdominal segment of the maie widened laterally, 

 the apex broadly rounded and lobed at the middle. 



Amongst the pale coloured species of this genus, the présent one 

 may be at once recognised by the costate elytra. 



GALERUCELLA SIMPLIGICOLLIS sp. nov. 



Greenish, fuscous or testaceous, finely pubescent, antennae with 

 the joints piceous at apex, thorax finely punctured, the anterior 

 angles black, scutellum piceous, elytra finely rugose-punctate and 

 pubescent, the sides of the breast and the abdomen stained with 

 black or fuscous. 



Length 8 mill. 



Of rather broad and convexshape, the head broad, nearly impunc- 

 tate at the vertex, the clypeus triangularly raised, labrum like the 

 rest of the head, testaceous, with a few punctures, apex of man- 

 dibles black, antennae, extending to the middle of the elytra, shorter 

 in the female, testaceous, ail the joints stained with piceous at the 

 apex, the third and fourth joint equal, twice as long as the second 

 one; thorax rather more than twice as broad as long, the sides 

 nearly straight, the surface slightly transversely depressed, finely 

 rugose and pubescent, the anterior angles with a black elongate 

 spot extending half way downwards; scutellum subquadrate, 

 blackish, elytra scarcely more strongly sculptured than the thorax, 

 pale fuscous, below of the same colour, the sides of the breast and 

 the middle of the abdomen more or less blackish, Ihe inner side of 

 the tibiae also marked with a darker stripe, the first joint of the 

 posterior tarsi twice the length of the second joint, claws bifid, 

 prosternum invisible belween the coxse, the anterior cotyloid cavi- 

 ties open. 



