166 DESCRIPTIONS OF NEW SPECIES. 



B. Last joint of maxillary palpi elongate-triangular, inner side 



subangulated nearer the tip than the base ; tip subacute ; 

 Piceous ; head, thorax, and legs testaceous. BICOLOR. 



Dark piceous ; finely pubescent. FULIGINOSA. 



C. Last joint of maxillary palpi rounded at tip, inner side 



subangulated at the middle. DOESALIS. 



474. O. granulata. Pallide picea, subtiliter cinereo-pubescens, 

 capita thoraceque confertim punctatis, punctis versus latera subtiliori- 

 bus, hoc latitudine longiore, postice modice angustato, disco antice late 

 concavo, ante basin rage impresso ; elytris thorace latioribus, elongatis 

 confertim granulato-punctatis ; subtus dilution Long. -25 -30. 



Two males, Cape San Lucas, Lower California ; collected by 

 Mr. Xantus. The last joint of the maxillary palpi is subcultri- 

 form, about twice as long as its width, and the broadest part is 

 about one-third from the base; the llth joint of the antennae is 

 slightly sinuate above. The fifth ventral segment is rounded at 

 tip. The claws are very feebly dilated at the base. 



475. O. fllliginosa. Picea subnitida, tenuiter cinereo-pubescens, 

 capite thoraceque subtiliter punctatis, hoc latitudine longiore postice 

 angustato, ante basin foveato, margine apicali basalique testaceis ; 

 elytris thorace latioribus elongatis, punctulatis ; palpis* maxillaribus 

 articulo ultimo triangulari, oblique subtruncato. Long. -34. 



Mas antennis corporis dimidio longioribus ; segmento ventrali sexto promi- 



nulo profunde emarginato, membro virili conspicuo. 

 Femina antennis corporis dimidio haud longioribus ; segmento ventrali 5to 



apice rotundato, 6to occulto. 



One pair, collected at Cape San Lucas, Lower California, by 

 Mr. Xantus. This species agrees with G. bicohr in the form of 

 the last joint of the maxillary palpi, which is elongate triangular, 

 and obliquely truncate at the tip, the angle on the inner margin 

 being nearer the tip than the base. 



PROBOSCA SCHMIDT. 



476. P. pleuralis. Elongata, pallida, subtiliter punctulata, tenuiter 

 cinereo-pubescens, thoracis lateribus elytrorumque vitta submarginali 

 fuscis, oculis nigris ; palpis maxillaribus articulo ultimo elongate, tri- 

 angulari, latere interno ad medium subangulato ; mandibulis acutis, 

 dextro pone apicem dente emarginato. Long. -30 -40. 



Two specimens, from Florida, given me by Mr. Hike. This 



