June, I9I3-] ROBERTS: NOTES ON HaLIPLID^ OF AMERICA. 115 



Last abdominal segment smooth, shining. Posterior thiglis dark 

 brown, nearly black at the knees. 



Male front and middle tarsal joints feebly thickened. 



The subhumeral black patch on the suture of elytra, with the 

 other markings weak, is quite distinctive. 



Peltodytes oppositus new species. 



Oval, fulvous, shining, spots distinct. 



Size: length 3^—4 nim. ; width 2—2y4 mm. 



Head finely punctured, narrow between the eyes, vertex smooth ; antennae 

 color of head. 



Pronotum evenly, rather finely punctured, more sparsely between the 

 basal spots, with a few coarse punctures on the spots and along the base 

 towards the side margins. 



Elytra broadest near the middle, gradually rounded, apices obliquely 

 truncate and sinuate ; striae composed of mixed punctures, those of the inner 

 three, and interrupted fourth, being much smaller and less deeply impressed 

 than those of the middle and lateral rows ; the punctures diminish in size 

 below the median line but the rows are not confused ; the maculation consists 

 of seven large, distinct spots, one humeral, one sub-basal, two median the 

 outer of which is sub-lateral and the inner coalescent with the sutural margin, 

 three subapical in a triangle and not confluent ; black basal margin narrow 

 except just below the spots on pronotum, where it extends downwards some- 

 what upon the elytra ; the suture is broadly margined with black, reaching 

 the first stria, from base to coalescent median spot and from thence much 

 more narrowly to the blackened apex. 



Under side bright fulvous. 



Prosternum broadest at base, narrowing gradually to front coxae and only 

 a little widened at apex ; sides rather thickly, and apex finely margined, not 

 channeled but rather full between the margins and closely, evenly punctured. 



Mid-metasternum nearly flat, margined, lightly impressed each side below 

 the coxae, evenly, finely punctured between the margins except a limited 

 central spot ; the margins are weakly arcuate at the coxae and extend about 

 two thirds the distance to the antecoxal piece. 



Hind coxae evenly, finely punctured ; apices distinctly angulate ; posterior 

 thighs very dark brown, nearly black, and the last abdominal segment dull, 

 distinctly rugose. 



Male front and middle tarsi with the joints thickened, slightly produced. 



Male and female types from Jacksonville, Florida (W. S. 

 Genung), in my collection. Although somewhat similar in markings 

 to the floridcnsis of Matheson, and taken with it by Mr. Genung, I 

 believe this species to be distinct. A special characteristic of flori- 

 dcnsis is the brevity of the rows of coarse punctures on the elytra 



