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DESCRIPTIONS OF SOME NEW SPECIES 

 of DONACINjE and CRIOCERINjE 



CONTAINED IN THE BRUSSELS MUSEUM AND THAT OF MY OWN, 



by Martin Jacoby. 



Donacia frontalis n. sp. — Narrow and parallel, œneous, 

 above glabrous, the head with two tubercles ; thorax not longer 

 than broad, closely pimctured, nonstrigose; elytra closely punc- 

 tate-striate, the interstices transversely strigose throughout, the 

 apex truncate. 



Length. 3 1/2 lines. 



Of very narrowly-elongate, almost subcylindrical shape, the 

 head rather produced, the eyes large, the intermediate space 

 raised into two distinct tubercles which are divided by a longitu- 

 dinal groove, the entire surface of the head very closely punc- 

 tured, the clypeus and labrum closely pubescent, the antennse 

 extending scarcely, to the middle of the elytra in the female 

 black, the basai joint obscure cupreous, the third joint but 

 slightly longer than the second, the fourth one half longer than 

 1he preceding, thefifth joint nearly double the length ofthe fourth; 

 thorax subquadrate, scarcely longer than broad, the sides dis- 

 tinctly swollen from the apex to the middle where a distinct 

 construction is visible, the anterior angles without any tubercles, 

 the surface slightly convex, closely and finely punctured without 

 any transverse strigse, the middle ofthe dise with an indistinct 

 short longitudinal groove; scutellum large, pubescent; elytra 

 with a slight suturai dépression below the base, regularly and 

 distinctly punctate-striate, the interstices finely transversely 

 strigose; underside densely clothed with silvery pubescence, legs 

 obscure cupreous, the posterior femora unarmed and extending to 

 the first three abdominal segments. 



Bab.: China, Woosong (from Chapuis' collection, in that ofthe 

 Brussels Muséum and my own). 



The narrow and parallel shape of this species, the tubercles 

 between the eyes and the sculpture of the thorax, are its principal 

 characteristic, the three spécimens before me seem to be ail 

 females. 



Donacia recticollis n. sp. — Fuscotis and closely pubescent, 

 the antennœ and legs fîdvotis, thorax obscure œneous very finely 



