410 Mr. J. S. Baly on new Genera and Species of Gallerucidse. 



medium sat late ampliatis, disco profunde transversim sulcato, 

 pube adpressa sparse obsito, nitido, subremote punctato ; elytris 

 convexis, dorso subdepressis, rude granulosis, subremote punctatis, 

 fusco-sericeis, murinis vel pallide viridibus, opacis ; genibus, 

 tibiis, tarsisque nigris. 



Mas. CEdeagus basi incrassatus, curvatus, parallelus, ad apicem ovato- 

 lanceolatus, apice ipso producto, capitate 



Foem. Abdominis segmentum anale apice obtuse angulato, breviter 

 angulariter inciso. 



Long. 5 lin. 



Hah. Magdalena Biver, Columbia. 



Broader and flatter above than D. cinctipenne, closely resem- 

 bling D. nigripenne, Fab., in form and unicolorous elytra. From 

 this latter species it may be at once known by the bilobate black 

 patch on the vertex, as well as by the paler elytra ; the males of 

 the two species differ also in the form of the cedeagus ; the apex 

 of this organ, instead of being capitate as in the insect before us, 

 is produced in D. nigripenne into a broad slightly recurved pro- 

 cess, the extremity of which is truncate and slightly notched, 

 the lobes of the notch being also reflexed ; the females may be 

 separated by the difference in the apical notch of the last abdo- 

 minal segment : in D. nigripenne this notch is linear, a longi- 

 tudinal groove extending from its apex to the base of the seg- 

 ment ; in D. modestum the notch is short and slightly angular, 

 the longitudinal groove being entirely obsolete. The head of 

 D. modestum is rather longer than in any of the other species 

 described in the present paper ; the front is impressed with the 

 usual semiovate space. 



Genus Hyph^enia. 



Corpus angustatum, parallelum, modice convexum. Caput ex- 

 sertum ; facie perpendiculari ; antennis filiformibus, 3 seepe corpore 

 longioribus, gracilibus ; articulis primo curvato, a basi ad apicem in- 

 crassato, secundobrevi, cseteris cylindricis, subtus in <3 ssepe setis erectis 

 vestitis, singulis longitudine primo fere sequalibus ; secimdo, tertio 

 quartoque interdum subtus compressis et dilatatis ; $ corpore 

 paullo brevioribus, articulis nunquam setiferis ; oculis magnis, pro- 

 minulis ; palpis maxillaribus ovatis, apice acutis. Thorax transverso- 

 quadratus, lateribus rectis, angulis singulatim tuberculo setifero 

 armatis ; dorso subdeplanato, medio transversim sulcato. Elytra 

 tborace paullo latiora, elongata, parallela, confuse punctata. Pedes 

 graciles, subelongati ; coxis anticis erectis, contiguis ; femoribus pos- 

 ticis non incrassatis ; tibiis omnibus apice muticis ; tarsorum posti- 

 corum articulo primo duobus sequentibus conjunctis aequali ; un- 

 guiculis appendiculatis. Prosternum. feie obsoletum. 



Type Ihjphcenia (Luperus) pilicornis, Motsch. Birmab. 



