AMERICAN COLEOPTERA. 103 



of similar markings, while in fulvoguttata and Drummondi the lines are 

 replaced by spots. 



This species occurs from Oregon to Texas in the mountain regions. 



M. notala Lap. et Gory. — Head sparsely punctured, shining. Thorax with 

 sides regularly arcuate, sometimes slightly oblique posteriorly, broadest a little in 

 front of middle, surface subopaque, sparsely punctured at middle, at sides finely 

 reticulate, median line finely impressed and slightly foveate posteriorly, lateral 

 margin distinct posteriorly; thorax beneath coarsely punctured at the sides, more 

 finely at middle, presternum suddenly constricted at tip. Elytra depressed, 

 granulate punctate, lateral margin finely serrulate posteriorly, the tip acute, color 

 black with yellow markings as shown in the figure, sometimes entirely wanting. 

 Body beneath coarsely punctate, more or less reticulate at the sides. Posterior 

 tarsus as in miranda. Length .3fi — .48 inch; 9 — 12 mm. (PI. IV, figs. 3, 6). 



The last ventral segment is truncate, the angles acute but' notprominent. 



This species by its smoother front is easily known from either of the 

 next two species, and from computet, by the more acute elytra and the 

 form of the posterior tarsus. 



Occurs in Georgia and Florida. 



M. ronsjuila Lee. — Head rather shining, coarsely and moderately densely 

 punctate. Thorax with sides regularly arcuate, widest at middle, surface sub- 

 opaque moderately densely reticulately punctate, lateral margin obsolete in front, 

 acute posteriorly, sides of thorax beneath densely reticulately punctured, pro- 

 sternum in front densely and finely punctured, at it^ sides very sparsely, tip sud- 

 denly narrowed. Elytra granulate punctate, depressed, color black with variable 

 markings, lateral margin obsoletely serrulate posteriorly, tips very obtuse. Body 

 beneath coarsely but not densely punctured. Posterior tarsi with the first joint 

 equal to the next two. Length .36--.4S inch ; 9—12 mm. (PI. IV, figs. 2, 4). 



The last ventral segment is as in notata. 



The elytral markings are variable, their range will be shown in the 

 accompanying figures. In its general appearance this species resembles 

 notata, the differences have already been mentioned. It seems to occupy 

 an exactly intermediate place between the preceding and following species, 

 resembling the former in general appearance and color and the latter in 

 the elytral and tarsal structure. 



Occurs in California and Arizona. 



M. longipes Say. — Black, feebly shining, rarely with faint metallic lustre. 

 Head densely punctured. Thorax widest in front of middle, the sides in front 

 arcuate, posteriorly nearly straight and slightly convergent, marginal line distinct 

 posteriorly but inferior, disc with a vague oblique impression each side posteriorly, 

 the surface coarsely punctured along the margin, finely reticulate within this, 

 obsoletely punctured at middle, the median line distinct, hind angles rectangular. 

 Elytra moderately finely granulate punctate, the surface irregular, lateral margin 

 finely serrulate posteriorly, the apices acute but not acuminate. Thorax beneath 

 reticulate at the sides, presternum coarsely reticulate between the coxse, anteriorly 

 sparsely punctate, the tip suddenly constricted. Body beneath reticulate. Abdomen 



