NODA. 117 



Although there are of the present insect but two specimens (a male and a female) 

 before me, there is no doubt that they are distinct from any other species, on account of 

 the opaque head and the close and strong punctuation of the thorax, together with the 

 shape of the latter, which is much longer than in any species known to me, and very 

 convex at the same time, as well as the elytra, giving the entire insect a parallel and 

 almost cylindrical appearance. There does not seem to be any great difference between 

 the male and female, if I am not mistaken as to the sexes. N. strigicollis, Lefevre (the 

 type of which I have examined in Mr. Baly's collection), is a closely allied species, but 

 differs completely in the transverse scarcely convex thorax. 



8. Noda subcylindrica. 



Ovate, subcylindrical, metallic green or seneous, first six joints of the antennae fulvous ; thorax remotely punc- 

 tured at the disk, finely and closely at the sides ; elytra strongly punctate-striate. 



Length 1J line. 



Head strongly and rather closely punctured ; clypeus not separated from the face, but the space in front of it 

 rather rugulose ; antennae black, first six joints fulvous ; thorax transversely convex, very little narrowed 

 in front, finely but distinctly punctured, the punctures at the disk much more distant than at the sides, 

 where they are crowded and aciculate ; elytra with a very obsolete transverse depression below the base, 

 strongly and closely subgeminate- punctate-striate, the striae distinctly visible to the apex, but in single 

 rows only ; legs entirely metallic seneous or greenish. 



Hab. Mexico, Oaxaca (Boucard, coll. SallS), Cuernavaca, Cordova (Salle). 



The principal distinguishing features of this species are its almost cylindrical shape, 

 the fine, close, and aciculate punctuation of the thorax at the sides, and the absence of 

 any costee at the elytra in both sexes, the male being as usual recognizable by the 

 dilatation of its anterior tarsi. The females are all of the teneous colour and rather 

 more strongly punctured ; the elytra are less closely so ; and the punctuation is more 

 distinctly arranged in double rows. 



9. Noda lefevrei. 



Noda lefevrei, Jacoby, P. Z. S. 1878, p. 985. 



Hab. Mexico, Tuxtla (Salle) ; British Honduras, Belize, river Sarstoon, Rio Hondo 

 (Blancaneaux) ; Guatemala (SalU) ; Nicaragua, Chontales (Janson) ; Costa Rica, 

 Volcan de Irazu (Bogers). 



This is a rather small and convex species, of which numerous specimens were obtained 

 by Janson in Nicaragua. The colour of the upper surface varies from seneous to 

 metallic green or blue. The male insect has the elytra much more finely punctured 

 than the female, and is almost devoid of the raised apical interstices, which are very 

 conspicuous in the latter and occupy the entire apex. The species may also be known 

 from others by the dark seneous legs and the fine and rather remote punctuation of the 

 thorax, the latter being at the same time greatly narrowed anteriorly. The species 

 seems to be closely allied to N. semicostata, Lefevre, but differs in the even punctuation 



