1916] Parshley — On Some Tingidce from New England 167 



ley, Ohio State University, and Boston Society of Natural History. 



This species varies in distinctness of markings but never ap- 

 proaches the uniform yellowish brown of the true plexa Say, from 

 which it is further distinguished by its#longer rostrum and irregu- 

 larly triseriate costal area. In P. brevirostris Osb. & Drk., the 

 rostrum does not extend beyond the middle coxse, the color is uni- 

 form dull brown, and the costal area is regularly triseriate. 



Some time ago Mr. C. J. Drake kindly sent me a specimen of 

 this species, determined as P. plexa Say, and recently Mr. Van 

 Duzee, learning that I had a new Physatocheila under considera- 

 tion, most generously submitted specimens known to him to be 

 of a new species, which have been of great assistance to me in 

 working out the true status of these forms. 



Melanorhopala obscura sp. nov. 



Long-winged form. — Dark yellowish brown, tinged with gray, 

 eyes, tips of antennae, rostrum, and tarsi darker. Head with 

 five long acute spines, three arising from the vertex and extending 

 freely forward between the antennae, two adpressed, arising from 

 the base of the head and extending forward near the eyes. Anten- 

 nae proportionally about as long as in clavata, but less distinctly 

 club-shaped, the third segment being only slightly more slender than 

 the fourth and but little, though distinctly, enlarged at apex; 

 fourth about as long as the first, regularly fusiform; the second 

 shorter than the first, very slightly enlarged apically. Pronotum 

 convex, with three longitudinal carinse and uniseriate lateral 

 expansions which are vertically reflexed. Costal area of heniie- 

 lytra uniseriate, subcostal biseriate, discoidal not quite reaching 

 middle of hemielytra; costal margins parallel, slightly sinuate near 

 middle. Length 4.8 mm. 



Short-winged form. — Pronotum narrower, disc perfectly flat, 

 hemielytra narrowed apically, the costal margins evenly curved. 

 Length about 4.5 mm. 



Holotype, long-winged d^. Beach Bluff, Mass., 21 June, 1915 

 (Parshley), taken in ocean beach drift; paratype, short-winged cf , 

 Nahant, Mass., 16 July, 1915 (Parshley), with apices of hemielytra 

 somewhat injured; both in my collection. 



Sufficiently distinct from the other species of Melanorhopala by 

 reason of its small size, narrow form, and antennal structure. In 



