516 ARKIV FÖR ZOOLOGI. BAND 1. 



sely thickened, extending to the base of the elytra; thorax 

 scarcely twice as broad as long, of equal width, the sides 

 with a distinct tooth below the middle, anterior angles acute, 

 the disc very remotely and rather finely, the sides more 

 strongly and closely punctured, scutellum smooth; elytra 

 with a feeble depression below the base, the shonlders pro- 

 minent, bounded within by two short rows of deep punctures, 

 the rest of the surface finely pnnctate-striate, the rows some- 

 times consisting of double punctures, the interstices very 

 minuteiy granulose, distinctly costate at the apex, where 

 there are no punctures, the sides in front of the shoulders 

 with rows of deeper punctuation, under side and legs very 

 dark obscure reneous. 



Hab. Quinta, Argentine. 



The above description is that of the male, the female 

 is rather larger, the antenme have sometimes the lower six 

 joints fulvous with the basal one ameous above, the thorax 

 is of more transverse shape and rather more closely punc- 

 tured, the first joint of the anterior tarsi is as usual less 

 dilated. Amongst the many species of this genus, several 

 are known in which the thorax is more or less angulate at 

 the middle of the sides, in the present species this character 

 is well pronounced; N. virgulata Lef. (Mitth. Mtinch. Ent. 

 Ver. 1878, p. 115) is of greenish-ceneous colour (all the spe- 

 cimens of N. argentinensis are brownish-eeneous) the thorax 

 is nearly smooth at the sides and the sculpture of the elytra 

 is different as well as the colour of the legs. N. angidicollis 

 Lef. is a closely allied species, but the punctuation is much 

 finer and the thorax distinctly shorter, lastly N. granosa 

 Lef. (Cat. Eumolp. p. 16) is of different coloration but as 

 Lefévre has only given a short and totally insufncient dia- 

 gnosis which may apply to half a dozen species his descrip- 

 tion is useless. 



Chrysomelinse. 



Calligrapha matronalis Erichs. 

 Tatarenda. 



Zygogramma Burmeisteri Jac 



Tatarenda. 



