AMERICAN COLKOPTKRA. 123 



above in being of less elongate form, in its smaller eyes, front nearly 

 twice as wide as the vertical diameter of the eye, shorter subserrate 

 antenna?, the outer joints scarcely more than twice as long as wide, 

 the basal joint of hind tarsi not distinctly longer than the next two, 

 elytral setse longer. 



19. P. hystrix n. sp.— Of the interruptua type, but conspicuous in this group 

 for its exceedingly long abundant hispid vestiture. The paler parts of the elytra 

 are more or less dark rufopiceous, and so contrast slightly with the central black 

 area. The basal, apical and sutural regions are clothed with sub recumbent, re- 

 curved, yellowish white, squamiform hairs, these as usual being paler and denser 

 along the margins of the central area, and on the oblique discal dash, which is 

 here quite conspicuous. These recumbent hairs are also more noticeably scat- 

 tered over the black area than usual. The eyes are moderately prominent, sepa- 

 rated in the male by rather less than one and one-half times their vertical diam- 

 eter, and are a little smaller and more distant in the female. The antennae are 

 of the usual form, the tenth joint a little more than twice as long as wide in the 

 male, and about twice as long as wide in the female. The elytral interspaces are 

 scarcely wider than the very coarse strial punctures, the interatrial setse strongly 

 bristling, of two lengths, the longer ones equal to the distance from the suture to 

 the third stria, the shorter ones from one-half to two-thirds as long ; the strial 

 setse are still shorter and more inclined. The last veutral is not tuberculate in 

 the male. Length 2.6-2.8 mm. 



Brownsville, Texas. 



20. P. twimi us n. sp. — This is our largest and stoutest species of the inter- 

 ruptua type. The color is usually dark throughout, the base, apex and suture 

 of the elytra being seldom more than obscurely rufescent. The vestiture is 

 denser than in any other species of the group, and the erect hairs are nearly as 

 long as in hystrix. The eyes and antenna? vary but little in the sexes, the former 

 being separated by fully one and one-half times their vertical diameter; the 

 tenth antennal joint from two to two and one-half times as long as wide. Base, 

 apex and suture of elytra quite densely and almost uniformly clothed with yel- 

 lowish white recumbent hairs, the dark median area conspicuously suffused with 

 the same; median discal dash limited to a dot on the third interspace. Strial 

 punctures much less coarse than in hystrix, the interspaces distinctly wider than 

 the strise. The anterior margin of the central black area is more transverse than 

 usual, the basal densely pubescent area being in consequence but slightly wider 

 at the suture than at the humeri. Last ventral segment without apical tubercle 

 in the male. Length 3.2-3.7 mm. 



Southern California (San Diego), Lower California (San Jose 

 del Cabo). With the typical specimens from the above localities, I 

 have placed others from Texas, South Carolina and Florida, which 

 are too close to the types to warrant their separation with the very 

 few specimens at hand. 



TRANS. AM. ENT. SOC. XXXI. APRIL, 1905. 



