*>4 IIIK ( VNA1>IAN KNToMoUKiiKT. 



border of yellow, the former beiiij; the widest ; there is also a pear shaped 

 yellow spot placed obliquely and pointing to the scutel on either side of 

 the disk at the rear, dilated end to the front and an anterior median spot, 

 which joins the yellow margin, also a small yellow dot on each side ; 

 surface with sparse punctures, closer toward the anterior corners, the 

 yellow margins, except as aforesaid, are about free from punctures, lateral 

 edge very slightly subangulale in ^ ; elytra parallel, slightly compressed 

 behind the shoulders, yellow, with suture and margin narrowly black ; 

 the inside standard spots sutTused longitudinally into an irregular black 

 mark joining a transverse band on the convexity formed by the suffusion 

 of the four rear spots, the external middle sjiot is not sufTu-ied, the humeral 

 spot is also distinct, the punctuation is a little coarser ihan the thorax, 

 largely confused, but the intervals fr<im the third outwards on ihe rear 

 half of the tlytra are more or less distinctly indicated, though the rosiie 

 are everywhere flat, the third and fourth and the marginal and next to it 

 are the most marked intervals, there is also a prominent smooth yellow 

 sutural shield and another patch occupying three or four intervals and 

 forming a transverse spot on the side just before the C(jnvexity ; marginal 

 stria barely sinuate behind the lobe, wliich is wide and smooth, with a t"ine 

 row of marginal punctures ; under side black, with silvery pubescence, 

 prosternum semisulcate ; legs yellow, with spots on thighs, and tibia; and 

 tarsi darker ; hind thighs with a white spot on end, and front thiglis with 

 light spot on front. 



One cJ , Santa Rita Mts., .Ariz. Collected by the late Prof. Snow. 

 In form, size and general appearance very similar to inclusus, Jac. I'ypc 

 in Snow collections. 



P. trivittata, nov. sp. — Medium sized, yellow above, regularly punc- 

 tate striate, with heavy black thoracic M and three elytral stripes not 

 reaching the apex, the middle stripe sutural. Length, 23/^-3 mm. 



l*"orm rather short and stocky, head yellow, with very heavy black 

 frontal and vertex marks : antennx black, slightly tinged with brown at 

 the base, reaching about the middle of the abdomen in c > frontal face 

 lla't and thickly punctate, eyes very distant, especially in the ? . thorax 

 broader than long, narrowed towards the front, evenly and moderately 

 punctured on the dark parts, sparsely elsewhere, colour light yellow, with 

 heavy black M, sides broadly, roundly subangulatc. a little in front of the 

 middle, elytra of the same width as the thorax, yellow, regularly punctate 

 striate, the third interval complete, like boisai and fxil/idipennis ; each 



