HEMIPTEKA— HOMOPTEKA— GEKCOriD.E. 329 



5, Palecphora pr^valens. 



PI. 20, Fig. 1 ; PI. 21, Fiff. 2. 



This species, by far the most coimnon of all the Homoptera of Floris- 

 sant, is least heavily marked among- all those Palecphorge which show 

 plainly the inferior subapical spot. This is usually present, and sometimes, 

 though very rarely, distinct, while the other spots are almost wholly 

 obscured or appear as clouds, except, indeed, the superior costal spot, which 

 appears as a thickening of the base of the costa slightly enlarged distally, 

 and is rarely absent, usually tolerably distinct, almost always slender, and 

 the costa is sometimes a little thickened beyond the enlargement at the 

 normal spot. The species is one of the largest in size, but only to a slight 

 degree. 



Length of body, 10..5-11°""; of tegmina, 8™"; breadth of thorax, 3-3.5°'"\ 



Florissant. About seventy-five specimens, among which the best are 



Nos. 543, 829, 1364, 331.5, 5239, 6050, 6807, 7742, 8008 and 8081, 8035, 



10383, 11236, 11762, 13.567, 13576, and from the Princeton Collection 



1.710, 1.838. 



6. Palecphora inornata. 



PL 20, Fig. 15. 



In striking contrast to the other species of Florissant Palecphorae, this 

 species is repi'esented by a single specimen, which differs greatly from them. 

 It is of considerably smaller size than the others (which are very uniform 

 in this particular), and shows but the faintest trace of markings, while the 

 whole of the tegmina is fuliginous instead of pallid, with scarcely percepti- 

 bly darker tones at the extreme tip (not given in the figure), and at the 

 position of the inferior subapical and eosto-median spots ; the sutura clavi 

 is distinctly marked by a dark line. 



Length of body, 7.5°"" ; of tegmina, 6°"" ; breadth of thorax, 2""". 



Florissant. One specimen, No. 609. 



LTTHECPHORA gen. nov. (A/0oc, eucpopd). 



This genus is closely allied to Palecphora, having precisely the same 

 neuration in the hind wings, but differing principally in the form and struct- 

 ure of the tegmina. These are less ovate in form, the margins being almost 

 or (piite parallel and tlie apical margin symmetrically rounded, instead of 



