182 



anguiis anticis subrotundatis, posticis valde rotun- 

 datis. 



Thorax oblongus, antice paullo angustior, capite 

 vix latior, anguiis anticis rotundatis, posticis rectis. 



Mesosternum valde declive, intra pedes medios 

 productum, 



Pedes quatuor anteriores simplices femoribus pos- 

 ticis valde incrassatis, spinaque valida armatis. 



Tibice curvatae, articulis tarsorum bilobatis, plantis 

 infra tomentosis. 



Mecynodera picta. Long. lin. 6J. lat. lin. 2i. 

 Nigra, antennis, corpore, pedibusq. infra cinereo- 

 tomentosis, fuscis, thorace bilineato, elytrisque flavo- 

 pictis. 



Caput antice margine aurantio, postice nigro- 

 cinereum, antennis concoloribus. Thorax in medio 

 niger, lateribus aurantio colore lineatis. Elytra atra 

 flavopicta, maculis variis inquinata, sagitta flava in 

 singulo delineata. Corpus infra cinereo-tomentosum, 

 mesosterno dente brevi rubro armato, pedibus pos- 

 ticis incrassatis, spinaq. acuta armatis. 

 Habitat in Nova Hollandia. In Mus. Dom. Hope. 



The above genus appears to be a form uniting 

 Donacia and Sagra, but it is evidently most allied 

 to the latter. Mr. George Gray has mistaken this 

 insect for the Megamerus of Mr, MacLeay, with 

 which it differs in many points ; I propose there- 

 fore to give it the name of Mecynodera (derived 

 from fJLfjKww and leprj) to include the species belong- 

 ing to this form. It certainly appears to be a link 

 uniting the above-mentioned genera. 



