June, 1913] Roberts: Notes on Haliplid^-e of America. 113 



Peltodytes dispersus new species. 



Oval, elongate, greenish yellow. 



Size: length 3 34-3 M mm.; width z—zYi mm. 



Head finely, evenly punctured, narrow between the eyes ; eyes large, oval, 

 not strongly convex ; antennae color of head. 



Pronotum evenly punctured, except a small space at disc, those of the 

 apex and sides less coarse and deep than those at base ; punctures not black- 

 ened, and the usual black basal spots moderate in size. 



Elytra broadest at middle, gradually rounded from base to exterior apical 

 angle ; apices truncate-sinuate with the sutural angle acute ; striate with 

 eleven rows of coarse, deep, blackened punctures diminishing, but not con- 

 fused, apically, with a short basal stria between the third and fourth ; the 

 fourth stria is rather crowded, in some specimens, between the third and 

 fifth but distinct, and the eleventh is placed close to the lateral margin ; 

 maculate with six small, rather faint, black spots of which the first three 

 form a triangle which has the apical spot placed at the base of the short 

 extra stria and the other two subsutural and sublateral at the median line, 

 with the second three forming a smaller subapical triangle ; suture narrowly 

 black and the base with a very narrow dark border and a row of large, deep 

 punctures extending from suture to humerus. 



Under side and legs ferruginous in color. 



Prosternal process broad at base, finely but distinctly margined laterally, 

 shallowly concave or channeled, rapidly narrowed to front coxae where it 

 is strongly constricted, and thence widening a little to apex : apex defined by 

 a fine outwardly convex margin ; rugosely punctured between the margins. 



Mid-metasternum not strongly depressed between the middle coxae, 

 slightly impressed each side below them, margins fine and short, intermediate 

 space shining and with a few scattered punctures near the margins. 



Hind coxal plates finely, evenly and not deeply punctured ; apices 

 rounded and faintly subangulate at middle with the sutural angle rectangular. 



Last abdominal segment smooth, shining; hind femora very dark brown. 



Male front and middle tarsi with the joints very little thickened, not at 

 all produced. 



Male and female types from Tucson, Arizona (Geo. D. Hulst), 

 are in my collection. 



Other specimens before me are from Prescott (Hulst), Riverside 

 (H. F. Wickham), Huachuca Mts. (H. G. Barber). Hot Springs, 

 Brt. Angel, Col. Canyon (H. S. Barber), and other localities in Ari- 

 zona; Provo, Utah (H. Soltau). 



The species is nearest to simplex, but at once distinct by its lighter 

 color, more narrow form, much finer punctuation, the complete 

 fourth stria and the narrower prosternal process with its evident 

 apical margin. 



