36 Mr. E. W. Jaxson's descriptions of 



punctures. Elytra at the base a little wider than the prothorax 

 and a trlHo more than twice as long, gradually narrowed to the 

 apex, dehiscent and acute at the tips; puuctate- striate, interstices 

 slightly convex, minutely and sparsely punctate. Underside 

 and legs reddish-yellow. 



Chiguinda. One specimen. 



5. Eudactylus castus, n. sp. PI. I, fig. 5. 



E. luteo-rufescens, nitidus, glaber; prothorace jjinictato, antice 

 valde angustato, vittis duabus nigris; scutello nigro; elytris luteis, 

 vitta suturali alteraque marginali abbreviatis nigris. Long. 22 

 mm., lat. 6 mm. 



Yellowish-red, shining; thorax with two diseoidal black stripes; 

 scutellum black; elytra ])ale yellow, the suture and external 

 margin with an anteriorly abbreviated black stripe. Head 

 coarsely and sparsely punctate, with a large shallow triangular 

 fovea in front; antenntis shorter than the prothorax, black, three 

 basal joints rufous, the third joint barely twice as long as the 

 second. Prothox-ax louger than broad, very much narrowed in 

 front, sides rounded; anterior angles rectangular; posterior angles 

 long, divergent and acnte; coarsoly and sparsely punctate; with 

 two black stripes on the disc, reaching neither the anterior 

 nor the posterior margin. Scutellum oblong, convex, black. 

 Elytra twice as long as the prothorax, slightly dilated at the 

 sides towards the middle, thence somewhat abruptly narrowed 

 to the tip, apex acute ; coarsely punctate-striate, interstices 

 convex, faintly coriaceous and very sparsely punctate; with a 

 sutural and marginal black vitta meeting at the apex and abl)re- 

 viated at about a third from the base. Underside and legs 

 luteous. Long. 21 mm., lat. 6 mm. 



Chiguinda. One specimen. 



Allied to E. Grandinii, Cand., from Mexico, but more robust 

 in habit, the punctuation of the head and thorax much coarser; 

 the elytral striaj deeper and their punctures much larger, the 

 interstices convex; the prothorax with two vitta? on the disc. 



6. Ischins hiplagiatus, n. sp. PI. 1, fig. 6. 



I. aurantiacus, brevitor pubesceus^ subnitidus ; prothorace 

 convexo, nigro-biplagiato ; scutello nigro; elytris dimidia parte 

 postica nigra, punctato-striatis,intcrstitiis jilniiis. Long. 20 mm., 

 iat. G jum. 



