246 THE CANADIAN ENTOMOLOGIST. 



Scutellum with a percurrent fuscous longitudinal line extending to apex 

 of clavus. Tegmina hyaline, each with a median longitudinal fuscous 

 streak, which converge on the membrane when the tegmina overlap in 

 repose. Fourth segment and apex of second segment of antennje fuscous. 

 Metanotum and tergites dark fuscous, margined laterally with testaceous. 

 First segment of antennae reaching just beyond head, second segment 

 about 41^ times as long as the first, and about as long as the incrassate 

 fourth, which is a little longer than the third. Length, 4^ mm. 



Hab : Oahu, on the coast on the ground amongst Sida and other 

 plants (R. C. L. P.) ; Hawaii, Kona coast in similar situations (R. C. L. 

 P.). The Hawaiian specimens have the second and fourth segments of 

 the antennae each five times as long as the first, but do not otherwise differ 

 appreciably from the typical Oahuan. 



I. Orthcea nigriceps (Dallas). 

 ( = Orthcea nigriceps, Kirkaldy, olim.) 



F. B. White, on Blackburn's authority, states that this species does 

 not occur below about one thousand feet above sea level, but that was 

 probably a mistake then, and certainly is so now, as it comes at night to 

 light in houses from sea level upwards. It occurs also in Tahiti and the 

 Philippine Isles. Mayr recorded it from New Zealand, but White, on the 

 strength of an allied form {Douglasi) from the latter country, considered 

 Mayr's record erroneous. Distant has now, however, considered 

 Rhyparochromus ijiornatus, Walker, from New Zealand, to be a variety 

 of O. nigriceps, and if Distant's identification be correct, it is probable 

 that Mayr's New Zealand forms were actually O. ?iigriceps. 



2. O. periplanios, sp. nov. 



This pretty little species is much smaller and less robust than the 

 preceding ; it does not fit into either of Stal's primary groups of ^^Pamera" 

 being removed from "a" by the anterior lobe of the pronotum being very 

 distinctly transverse, from "aa" by the said lobe being very slighly narrower 

 than the head. It is probably allied to vincta, Say, but has unicolorous, 

 dark ochraceous fore femora. 



Black, with silvery-gray pubescence ; first three segments of antennae, 

 the rostrum and legs ochraceous, fore femora darker ochraceous, last 

 segment of rostrum dark. Tegmina yellowish testaceous, strongly 

 punctured with dark brown, costal margin paler, immaculate, except the 

 apical margin ; apical margin of corium broadly but unevenly blackish- 

 brown, sometimes extending a little way along the inner margin, a white 

 sDOt at the inner posterior angle. Membrane pale, with several longitu- 

 dinal pale smoky streaks. Head distinctly longer and slightly wider than 



