CYPHEROTYLUS. 107 



me to decide the point. The thorax, nevertheless, is always more opaque in 

 C. califomicus (Lac.) ; and in the male the sides are very strongly rounded. 



One specimen from Jalapa, which I refer to this variety, differs, however, so much 

 from the usual form of it as greatly to invalidate these distinctions. 



The figure is of a female specimen from Jalapa. 



12. Cypherotylus alutaceus. (Tab. VI. fig. 10, s .) 



Oblongus, parum convexus, niger, subopacus ; elytris pallide flavis, punctis parvis, macula laterali epipleurisque 



nigris, stria suturali distincta. Long. 15-18 millim. 

 Mas tarsorum articulis duobus primis latioribus, femoribus parum incrassatis, segmento ventrali primo puncto 



piligero. 



Sab. Mexico, Northern Sonora (Morrison). 



This insect is perfectly distinct from C. boisduvali, and also from its variety C. cali- 

 fomicus (Lac). It is longer and the elytra are notably more depressed, so that the 

 contour when observed laterally is much less arcuate. The surface of the elytra 

 between the black dots is also sculptured with a fine irregular but alutaceous punc- 

 turing. 



13. Cypherotylus fenestratus. (Tab. V. fig. 22, $ .) 



Oblongus, parum convexus, niger, subopacus ; elytris pallide flavis, punctis numerosis (ssepe confluentibus), 

 macula laterali epipleurisque nigris ; prothorace aurantiaco, maculis duabus magnis, clathratis, nigris. 

 Long. 14-17 millim. 



Mas tarsorum anticorum articulis duobus primis latioribus, femoribus anticis parum incrassatis, segmento 

 ventrali primo puncto piligero. 



Hab. Mexico, Eefugio, Ventanas in Durango (H'dge). 



Similar to C. alutaceus in form. On the elytra the black dots vary in depth and 

 size, being more confluent in some examples than in others ; the lateral spot is sometimes 

 confused, and it is composed of three or four confluent dots only. The thorax in the 

 male has its sides a little more rounded than in the female, in which sex the sides are 

 nearly straight though narrowing towards the front; the disc is almost opaque ; the black 

 spots are slightly notched on their front and posterior sides, and in the single example 

 from Ventanas this notch is so deep that they are almost divided. The prosternal process 

 is edged with black. The elytra are very pale, almost whitish-yellow, and not shining, 

 but are scarcely alutaceous, though faintly rugose between the black dots ; the latter 

 in some examples are so numerous as to form confluent patches, while in others they 

 are nearly all distinct. 



This distinct new species was discovered by Herr Hoge during his second Mexican 

 expedition ,* we have received fifteen specimens from Refugio and one from Ventanas. 



P*2 



