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'before the middle of the discal cell; posterior cross-vein very 

 oblique. Legs with coxae and femora black, the latter more or 

 less distinctly yellow at base and apex, and beneath with two 

 rows of short spines or spinose hairs at least on the apical part; 

 tibiae yellow, sometimes darker towards the base and on the 

 apical portion, but yellow in the middle, the posterior pair with 

 no specially long hairs on the dilatation; 'tarsi nearly always 

 black, brown, or fuscous above in the male, sometimes black 

 in the female but often largely yellow, as is rarely the case in 

 the former sex. 



Abdomen in the male deep black or bluish black, shining (at 

 least apically) and bearing short black hairs; the basal segment 

 with a band of grey tomentum, and a transverse row of long 

 black bristles at the sides; in the female the abdomen is distinctly 

 covered with grey tomentum, most densely on the apical por- 

 tion of the first segment, and bears short and sparse, but quite 

 evident, dark hairs. Length 3-4.75 mm. (PI. VI, fig. i; VII, 

 fig. 10, loa, lob.) 



HAB. Hawaii generally; now common in the cane-fields. This 

 is the species referred to me in my Bulletin "The leaf-hopper of 

 the sugar cane" as occurring at Olaa. It has also been found on 

 Oahu by Mr. Swezey, but has not been taken in the cane-fields 

 of this island. 



28. P. oaJiuciisis, sp. nov. 



This appears to me to agree in nearlv all important structures 

 with the preceding, as well as in superficial appearance with cer- 

 tain of its varieties. In P. oalmciisis the tarsi are dark in both 

 sexes, the tibiae yellow and unhanded, the third antennal joint 

 is yellow, or at least pale, in both sexes, but usually sordidly so 

 in the male. The wings in the latter sex are quite smoky, in the 

 female clear. The dilatation of the posterior tibiae outwardly 

 bears some specially long black bristles, which differ from the 

 general clothing of the legs, and this fact readily separates the 

 species from the preceding. The ovipositor is very short and 

 strong. Length 3.75-4-5 mm. 



HAB. Mountains of Oahu. 



29. P. fcrryi, sp. nov. 



Front and face covered with white or whitish tomentum; third 

 joint of antennae yellow or ferruginous, acuminate. 



