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ADEPHAGA. 



275 



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DISCODERUS (p. 62) 











m 



Discoderus distortus (p. 63) 





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On re-examining examples of this species I find the male has one setiferous puncture 



*ment on each side of the anus. A specimen which I think likely 

 two such punctures, and has broader and less angularly curved 





to be the female has 

 middle tibiae. 





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5. 



Discoderus 



ipoides 



Quam D. distortus brevior et latior, prseeipue capite et thorace latioribus fere sieut in D. acinopo, hoc ( $ ?) qua- 



laterali 



postice nullo modo reflexo, fovea basali parva spatioque inter foveam et angulum eonvexo ; nigro-cupreus 

 elytris sieut in B. distorto cupreis nitidis ; pedibus antennisque piceis, harum articulis l°-2 m rufls. 



$ ? Tibiis intermediis latis et brevibus, mo dice arcuatis ; 

 Long. 7 lin. 



.urn 











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Hob. Mexico (coll. Bates). 







I omitted this species, which I have had for many years in my collection, in first 











dealing with this genus, in the doubt whether it might not be the female of 1). distortus. 

 Since then, having received a long series of an allied species from Arizona, in which 



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I find a sexual distinction in the number of anal setiferous punctures, I have been 



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enabled to pair D. distortus with some degree of probability, and am now convinced that 







f 



the female which I now call D. acinopoides belongs to a distinct species. It is singular 

 however, that in D. piger both sexes seem to have two anal punctures on each side 

 In D. difformipes all my specimens have one only, but they are evidently all males. 



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6. Discoderus melauthus. 



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Cseteris speciebus relative brevior thoraceque adhuc magis orbiculari. Niger, corpore subtus medio castaneo ; 

 labro, palpis et antennis fulvo-testaceis ; epistomate medio bifoveolato ; thorace relative magno, eonvexo, 

 postice ( (?) paullo magis quam antice angustato, lateribus valde arcuatis haud explanatis, angulis posticis 

 late rotundatis, basi media rugulosa, fovea utrinque haud profunda ; elytris valde convexis, basi et humeris 

 rectis, valde striatis (versus apicem sulcatis), interstitiis convexis. 



c? . Tibiae intermedise parum arcuatse apice intus producto ; ano utrinque puncto setifero unico. 





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Long. 5| lin. 



Hab. Mexico, Ventanas (Forrer). 

















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7. Discoderus pulvinatus. 



Elongatus, angustus, subcylindricus, supra euprascenti-aeneus ; palpis et antennis fulvo-testaceis (his interdum 

 versus apicem piceis), pedibus plus minusque rufo-piceis ; thorace quadrato, postice gradatim angustato, 

 lateribus perparum arcuatis, margine postice haud explanato, fovea basali lata, rotunda, laevi ; basi depressa, 

 angulis posticus rotundatis ; elytris striatis, interstitiis modice convexis (prope apicem angustioribus et 

 altioribus) ; tibiis intermediis ( 3 ?) leviter arcuatis, apice intus productis. 



Long. 3-3| lin. 



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Hab. Mexico, Puebla, Cordova (SalM). 











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Differs in the form of the thorax from D. parallelus (Lee.) and D. amblyderus^ y . 



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2nn2 















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