1912] Davis: PseUiopus (Milyas) 21 



the specimens of Milyas or Pselliopvs that I saw were unusually 

 orange in color. They were also quite plentiful and a pair was 

 observed in copulation. Upon comparing the specimens collected 

 with the darker colored PseUiopus cinctus Fabr. in my collection 

 from Long Island, N. Y.; New Jersey; Pennsylvania; Virginia 

 and Washington, D. C, it was observed that, in addition to color 

 differences, the humeral angles were not the same. I communi- 

 cated these facts to Mr. Harry G. Barber, who has been my chief 

 guide in things Hemipterous, and he has kindly given the insects 

 more study and has pointed out some other differences. The 

 description of chictiis by Fabricius will cover both species, but 

 we may consider it to be the darker and somewhat smaller form. 

 From this, the new species which I take pleasure in naming after 

 my friend, may be separated as follows: 



PseUiopus barberi sp. nov. 



Color. Anterior lobe of pronotum with black markings usually absent or re- 

 duced to two faint oblique streaks at anterior portion. Posterior lobe marked as 

 in cinctus. Scutellum with no prominent black markings, which are either absent 

 entirely or reduced to a small spot or to two faint oblique bands at extreme ante- 

 rior part between the two whitish pruinose spots. Corium unmarked with black; 

 orange yellow. Connexivum banded with black as in cinctus. Venter with black 

 markings arranged much the same, but considerable variation occurs in both 

 species. Markings of the legs, rostrum and antenna" are similar, but the head has 

 less amount of black maculation in barberi. 



Strucfural difereywes. In cinctus the short, black tipped, acute spine, before the 

 rounded humeral angle projects beyond the humeri and is directed slightly back- 

 ward, while in barberi the black tipped spine preceding the humeral angle, is 

 shorter, more obtuse and directed more laterally. It never extends beyond the 

 humeral angle. Basal margin of the pronotum in front of the scutellum is feebly 

 bisinuate in cinctus, while in barberi it is straight across. Scutellum of barberi is 

 not so foliaceus and flat as in cinctus and a well defined ridge or keel runs backward 

 from the transverse crescentic ridge. Apex of last genital segment of male with a 

 very short, blunt erect spine in cinctvs. Last genital segment of male in barberi 

 armed with a long very pointed simple spine, which is directed obliquely forward 

 and somewhat concealed. The inner genital lobes on either side of this are not 

 produced in barberi or in cinctus as in zebra. In zebra the apex of the last genital 

 segment of male is produced in the middle and armed with a sulcate pointed spine. 



In addition to the type locality mentioned above, specimens 

 of barberi have been examined from Great Falls, Va., Langdon, 

 Mo., Kansas, and Austin, Tex. 



