84 THE CANADIAN ENTOMOLOGIST 



elevated and free apically, the longitudinal line extremely fine, very slightly 

 curved, forming a right angle with the canal. 



This genus is distinguished from Anthocoris Fallen especially by the ex- 

 planate lateral margins of the pronotum, more distinctly punctate hemielytra, 

 and the apical prominence of the metasternal canals. 



North American species of this palaearctic genus are here recorded for the 

 first time, although Mrs. A. T. Slosson in her tenth Mount Washington list 

 includes "Tetraphleps, n. sp." Finding an example of this genus among Mr. 

 Moore's material, I wrote Mrs. Slosson in regard to the matter, and I am in- 

 debted to her kindness for the privilege of examining the specimen (determined 

 as above by Heidemann) which served as a basis for the Mt. Washington record. 

 This proves to be distinct from the Peaks' Island specimen, Mr. Van Duzee 

 has kindly sent for study an Ontario example, identical with the Peaks' Island 

 individual, which he had independently recognized as undescribed. Both 

 species are distinct from the old world forms, and are characterized herewith. 



Tetraphleps atnericana, sp. nov. 



Dark piceous; head, pronotum, and scutellum concolorous; second antennal 

 segment more or less distinctly paler at middle. Hemielytra light brown, 

 variegated; apex of clavus, corium and embolium inwardly, most of cuneus, 

 and the sutures and veins darker; membrane smoky brown, basal and two 

 lateral spots, and vittse following veins white ; membranal suture polished, 

 broadly black from apex of clavus to origin of outer vein. \'entral surface and 

 legs dark piceous; apices of femora, thoracic sterna, pleura, and epipleura (of 

 hemielytra) paler. Rostrum piceous or black. 



Dorsal surface shining, with conspicuous slightly curled pale pubescence 

 and a few long, erect black setse on head, pronotum, and scutellum. Head 

 elongate (23—20 including eyes, excluding collar) ; vertex longitudinally rather 

 convex, eyes moderately prominent, the transverse diameter of an eye not 

 quite equal to one-half width between eyes (5—11) ; length of anteocular portion 

 slightly more than twice the length of an eye, Juga strongly constricted before 

 insertion of antennae, compressed and prominent at apex; anterior and of tylus 

 rounded, apex of head thus bi-emarginate. Rostrum extending well beyond 

 front coxai, second segment becoming slenderer before middle, more than twice 

 length of third (3C— 14). Antenna- with fine pale pubescence and rather numerous 

 long erect setae, longer than head and pronotum together (52—45) ; first segment 

 reaching middle of expanded portion of juga; second segment in length equal to 

 width of head including eyes, enlarged in apical third ; third almost cylindrical ; 

 fourth fusiform, thicker than second at apex; third and fourth equal in length, 

 together longer than second (26—20). Pronotum obsoletely rugulose, with 

 sparse, minute, but sharply distinct punctation posteriorly; length on median 

 line two-fifths width at base; posterior margin broadly rounded at middle; 

 lateral margins straight, strongly convergent, slightly rounded anteriorly; 

 explanate portions very narrow, scarcely reflexed, reduced to a fine carina 

 behind middle, extending anteriorly but little beyond level of base of collar. 

 Scutellum polished, slightly tumid at base, transversely depressed just behind 

 middle, transversely rugulose at apex. Hemielytra slightly narrower than 

 abdomen at l^ase of cuneus (9), apex of latter acute; length of membrane be- 



