124 MEMOIRS ON THE COLEOPTERA 



narrow even flat sutural lines by transverse ridges thus including 

 large uneven depressions, the surface with rather small sparse punc- 

 tures throughout; lateral margin rather acute but not in the least 

 carinate or reflexed, disappearing at some distance from the apex; 

 abdomen smooth, rather shining, with small sparse simple and 

 perforate punctures. Length (9) 14.5-16.0 mm.; width 7.3-8.0 mm. 

 Mexico (Guerrero), Baron *baroni n. sp. 



This species is allied rather closely to dathrata Champ., but 

 differs in its apparently less elongate form and in the absence 

 of any trace of the faint aeneous lustre mentioned by Mr. Champion, 

 who states of dathrata also, that the hind thoracic angles are not 

 acute though prominent, the inner ridge of the elytra interrupted 

 and the side margins of the elytra slightly reflexed. I know certainly 

 of no other species than dathrata, funesta and baroni that can be 

 included under Bothrasida. 



Notiasida n. gen. 



The name Notiasida is here proposed for another Mexican genus 

 allied rather closely to the preceding and also comprising relatively 

 few species, of moderate or small size. The body is either of parallel 

 or ventricose, moderately to feebly convex form, with the prothorax 

 frequently as wide as the elytra or nearly so, as in Asidopsis opaca 

 and allies. The eyes, epistoma, labrum, mentum, palpi, legs and 

 tarsi are nearly as in Bothrasida, but the gular pedestal is less ab- 

 breviated, the antennae herissate with very stiff spiniform setae, 

 and the trochantin smaller; the prosternum between the coxae be- 

 comes similarly vertical at tip. The upper surface is not glabrous 

 as in Bothrasida, but clothed sparsely with short and very stout 

 grooved setae, sometimes becoming squamiform, and the elytra 

 have a very different type of sculpture, consisting on each of three 

 feebly elevated lineiform aggregates of anastomosing elongate 

 glabrous areas, the two inner of which are generally more or less 

 geminate; this appearance is however almost lost as a rule in 

 the females. 



The two species known to me by actual examples may be 

 described as follows: 



Form parallel, moderately narrow, rather depressed, deep black, rather 

 shining, not densely coated with earthy matter, each puncture of 

 the anterior parts and of the elytral depressions with a very short 

 and extremely stout yellow decumbent seta; head very feebly, 



