282 PROCEEDINGS OP THE ACADEMY OF 



A single specimen of this new species was obtained several years ago at New 

 York, and is now in the possession of Mr. J. Carson Brevoort, to whom I am 

 indebted for the privilege of describing it. The species is readily distinguished 

 from all its congeners, except Trichidion octonemus, by the number of its pec- 

 toral filaments. From that species, it is very distinct, the color being quite 

 different and the pectoral filaments themselves more elongated. Its affinity 

 with the Trichidion Plumieri is greater, its color being nearly similar, but that 

 species is distinguished from the present by the number of its filaments and 

 its proportions. 



Homoptera of the North Pacific Exploring Expedition under Com'rs. Rodgers 



and Ringgold. 



BY P. R. UHLER. 



PLATYPLEURA Amyot et Serv. 



P. fenestkata. Piceous : head tawny, with a black band, which is quad- 

 rately prolonged backwards upon the middle to the base, also a linear pro- 

 longation scarcely half way between the middle and the eyes, surface behind 

 the eyes, the interior margin of the eyes connecting with the band, and an ir- 

 regular spot each side of the front, black ; vertex yellowish, with a transverse 

 black spot, face blackish, covered each side with golden pubescence, the lateral 

 margins, a large spot at base, and the transverse rugae interruptedly yellow ; 

 rostrum yellow, tinged with piceous at tip ; stemmata yellow with a black disk ; 



basal joints of the antennae piceous, remaining joints : prothorax tawny, 



the posterior lobe olivaceous, a longitudinal spot behind the head, an anteriorly 

 trifurcate one against the posterior lobe, and the lateral sub-margin black ; 

 mesothorax tawny, with four triangular black spots, of which the two in- 

 terior ones are not more than one-half the length of the others, a longitudinal 

 spot upon the middle, which is dilated each side behind, and a round im- 

 pressed point each side of it, also black, the exterior triangular spots are con- 

 nected posteriorly with a piceous spot, which occupies the transverse excava- 

 tion ; metathoracic cross broadly emarginated posteriorly : tergum blackish- 

 piceous, clothed each side with golden pubescence, the posterior margins of 

 the basal segments each side, and the drum-covers yellowish, the posterior 

 margins of the segments ciliated with whitish hairs ; venter pale piceous, the 

 segments margined with yellowish, opercles yellowish, pubescent, blackish at 

 base ; pectus densely yellowish pubescent ; legs pale piceous, tips of claws 

 black ; fore wings tawny upon the corium, subhyaline from thence to tip, a 

 broad brown wavy band traversing the wing at the middle of the front areolet, 

 the basal areolet, a spot upon the costal margin not far from the base, and 

 another near the apex of the front areolet, deep brown, a dusky band traverses 

 the wing at the middle, and vestiges of the same color are continued against 

 the corium ; a dusky cloud towards the apex extends more than half way 

 across the wing, and a smaller dusky spot at tip is subconfluent with the 

 former, the tips of the longitudinal veins at the exterior margin have a series 

 of geminate brown spots, veins tawny-piceous towards the tip ; hind wings 

 tawny-orange, the veins deeper, a brown transverse spot beyond the costal 

 middle, and the exterior margin broadly and wavedly, from the spot, brown, 

 nervures brown, the one separating the flap broadly margined with dusky : 

 coxal valves long, very narrow, triangular, subquadrately dilated at base. 



Length 10 lines. Alar expanse 30 lines. 



Hab. Simoda, Japan. 



This may be a variety of P. hilpa, Walker, but in the absence of direct com- 

 parison with the type it is impossible to decide. 



FIDICINA Amyot et Serv. 

 F. atkata, Fab. Syst. Ent. 681, 15 ; Ent. Syst. iv. 24, 28. Donovan Ins. 



[Sept. 



