302 Mr. O. E. Janson's Notices of 



Beneath coarsely punctured and strigose, shining black, witli 

 several small Avhite marks at the sides ; mesosternal process 

 broad, rounded at the apex, finely punctured ; abdomen Avith 

 coarse elongate punctures at the sides, apical segment very 

 closely punctured, a double series of four transverse linear Avhite 

 marks on each side ; legs shining black, coarsely punctured with 

 black hairs, anterior tibiaj with three acute lateral teeth. 



Oaxaca, Mexico. 



Allied to G. 10-guttata, C. Waterh. 



Desicasta Thomsoni, n, sp. 



D. lata, sub-depressa, nigra, nitida, elytris limbo postice rufo- 

 piceo, pedibus sanguineis, tarsis nigris ; elytris seriatim lateribus 

 vage obsolete punctatis, $ . Long. 28, lat. 15 mm. 



Head very sparsely and finely punctured ; clypeus longitu- 

 dinally convex in the centre, sides acutely elevated and nearly 

 straight, apex deeply emarginate and impressed in the centre, 

 the apical points obtuse and elevated ; antenna) reddish. 



Tliorax very sparsely and finely punctured on the disc, the 

 sides coarsely but not A^ery closely punctured, posterior lobe 

 obtuse and depressed at the apex. 



Elytra broad, rather flat, the sides almost straight, and 

 abruptly rounded at the apex, suture dej^ressed at the base but 

 elevated posteriorly and terminating in a small acute point at 

 the apex, the disc slightly wrinkled and with rows of rather 

 coarse unequal j^imctures, sides finely and obsoletely pmictured; 

 shining black at the base but pitchy towards the sides and ajex, 

 and becoming bright red at the margin from the middle to the 

 sutural angle. 



Pijgidium very finely transversely strigose, pitchy-red. 



Beneath shining black, abdomen reddish towards the apex, 

 coarsely punctured at the sides ; mesosternal process long, broad 

 and flat, the apex rounded ; abdomen deeply longitudinally 

 impressed in the centre, apical segment slightly strigose ; legs 

 very sparsely punctured, bright red, knees and apex of tibige 

 pitchy, tarsi black, tibiaj and anterior femora fringed with black 

 hairs, the anterior tibite with two very acute lateral teeth. 



Panama. 



Allied to D. liaematopns, Schm., but differs in colour, in its 

 finer and sparser ])Uuctuation, and in its broader, depressed and 

 posteriorly truncate form ; in the latter respect it more nearly 



