Loiuiicornia of Mexico and Central Arnciica. 268 



panct:ito, medio baud cariuato ; scutello fiisco, marginibus fulve- 

 sceiitibus ; elytris supra convexis, baud costatis, griseo fulvescente- 

 que pubesceutibus, dense sat fortiterque punctatis, punctis fusco- 

 limbatis ; utroque elytro macula parva pone medium fusca ; cor- 

 pore subtus pedibusque fuscis griseo subtiliter pubesceutibus ; 

 anteuuis {^) quam corpore paullo longioribus, fuscis, articulis basi 

 griseis. Long. 12 mm. 



Hah. Mexico, Ventanas in Darango (Hogc). 



Head sparsely punctured in front ; vextex witli two clos(-'ly 

 approximated dark brown spots. Protborax without a median dorsal 

 carina; thickly and rather strongly punctured above, and with two 

 tubercles on the disk. Elytra convex, without costa or basal 

 iimbone, deeply and rather thickly punctured anteriorly, with the 

 punctures posteriorly as thickly distributed, but somewhat shal- 

 lower, and each surmounted by a fuscous border; in addition to 

 the numerous dark brown points thus spread over the whole elytra, 

 there is a small irregularly rounded spot on each just behind the 

 middle, while the conjunction of some of the points forms a 

 similar but less distinct spot on each near the apex. Apices of 

 elytra slightly obliquely truncate, the angles not produced. Pro- 

 sternal process gradually declivous posteriorly ; the mesosternal 

 somewhat more abruptly declivous in front. 



In addition to this species there is only one other of 

 the genus, so far as I know, in which the elytra are 

 without either a costa or basal umbone. This species 

 [A. moiriaii, Uhler), which I have not seen, has a dis- 

 tinct zigzag or M-shaped band behind the middle of 

 each elytron, and so appears to differ sufficiently from 

 the present species. 



Acanthoderes signatas, sp. n. (PL XII., fig. 3, ? ). 



5 . Supra albo-cinereus, nigro ornatus ; prothoracis disco vittis 

 tribus nigris, medio carinato et utrinque tuberculato ; scutello 

 nigro, medio griseo ; elytris basi sparsim granulatis, utrisque macu- 

 lis vel plagis septein et punctis minimis nigris, apicibus truncatis ; 

 antenuis medium elytiorum paullo excedentibus, articulis 3o — 5um 

 apice subtus dense fimbriatis. Long. 13 mm. 



Hah. Mexico, Xucumanatlan in Guerrero, 7000 ft. 

 {H. H. SmUh). 



Greyish white, with black markings. Protborax with a median 

 narrow black vitta, which ends in a small triangular dilatation in 

 front and behind, and with a shorter black vitta passing i'rom the 



