452 MR. MARTIN JACOBY ON NEW SPECIES [NoV. 28, 



Head with some punctures at the vertex, black, the eyes more 

 or less margined with flavous within and Avith some distinct 

 punctures ; antennse not extending to the middle of the elytra, 

 black, third and fourth joints equal ; thorax scarcely twice as 

 broad as long, the lateral margins straight at the base, rounded in 

 front, the anterior angles produced into a tooth, the sides broadly 

 flattened, flavous, the middle of the disc in shape of an antei'iorly 

 narrowed broad band, black, impunctate ; elytiu rather broad, 

 very closely and finely but distinctly punctured, black, the lateral 

 margins narrowly flavous, this colour widened at the apex into a 

 spot which does not quite extend to the suture ; under side and legs 

 black or piceous. 



Hah. Espirito Santo, Brazil. 



Distinct in its coloration from any other species of the genus 

 known to me ; two specimens are before me. 



Elytra pale^ with small black spots. 



Oedionychis bipunctulata, sp. n. 



TestaceoTis above, the under side and legs darker ; thorax 

 impunctate, with broadly flattened sides ; scutellum piceous ; 

 elytra very finely and closely punctured, each with a small black 

 spot below the middle. 



Length 6 millim. 



Vertex of the head stained with piceous, with a central groove 

 and bilobed in fi'ont, fi-ontal tubercles short and broad ; clypeus 

 convex ; antennfe wdth the lower three joints flavous, the follow- 

 ing four black, the rest wanting ; thorax strongly transverse, of 

 very even width, the sides straight at the base, I'ounded anteriorly, 

 broadly flattened, anterior angles thickened, oblique but scarcely 

 produced outwards, the disc impunctate, testaceous, obsoletely 

 depressed in front of the scutellum, the latter triangulai-, nearly 

 black ; elytra strongly convex, nearly parallel, with a short row of 

 deeper punctures within the shoulders, the rest very finely and 

 closely punctured, below the middle a small black spot is placed, 

 halfway between the lateral and sutural margins ; under side and 

 femora fulvous ; prosternum narrowly elongate, rather convex. 



Rab. Prov. Tucuman, Argentine Rep. {C. Bymch). 



In the markings of the elytra and general coloration this species 

 resembles 0. complanata Sufi"., from Cuba, but the latter is smaller, 

 much more depressed in shape, and has impunctate elytra. 



Oedionychis triloba, sp. n. 



Elongate, testaceous ; head and thorax impunctate, the latter 

 with two trilobed black spots ; elytra not perceptibly punctured, 

 each elytron with three black spots, two at the base and one at the 

 middle, the extreme sutural margius from the middle to the apex 

 black. 



Length 6 millim. 



