OF WASHINGTON. 85 



Hemerobius pacificus Banks. 



Hemerobius pacificus Banks, Trans. Am. Ent. Soc., xxiv, p. 24, Febru 

 ary, 1897. 



Kaslo, 29 May to 5 August, ten specimens. 



Hemerobius dyari, n. sp. 



Alar expanse 13 mm. Body above and below, including legs and 

 antennae, pale yellowish, the latter darker toward tip. Face indistinctly 

 bordered with darker and with an indistinct line around antennal sockets, 

 piceous below each eye and on lateral margins and middle of clypeus ; 

 apical joint of palpi piceous. Pronotum dark each side, leaving a longi 

 tudinal median pale stripe. Anterior wings rather narrow their width 

 scarcely more than one-third their length their tips rather narrowly 

 rounded; basal half of costal area rather narrow; costa flattened almost 

 concave in the middle, strongly convex above the large pale pterostigma; 

 smoky hyaline, with pale spots along the longitudinal veins; veins pale, 

 with indistinct brownish spots most pronounced along the radial sectors 

 from inner to outer gradate series; hind margin of wing, from middle to 

 apex, brownish, interrupted with pale spots and with a brownish spot near 

 base ; radius spotted with dark brown from near base to pterostigma ; 

 cubitus, also, spotted with dark brown, some of the spots larger than 

 those on the radius, the largest one covering the basal veinlet connecting 

 with the posterior fork of the median, and another large one midway be 

 tween this and the apical connecting veinlet; a large, paler brown spot on 

 the median above the apical connecting veinlet; posterior fork of median 

 bent toward cubitus, thus making the inner veinlet connecting it with cu 

 bitus shorter than the outer; radio-median cross vein situated at least as 

 far before forking of median as the former is long and joining radius 

 much before origin of first sector; forking of median plainly before origin 

 of first sector; three radial sectors, anterior branch of the third forked be 

 fore inner gradate series (and before subpterostigmal radial cross vein in 

 right wing of type specimen, at this vein in left wing), posterior branch 

 simple; five gradate veins in inner series, the last (hindmost) slightly be 

 yond the next to the last, seven in outer series.* Posterior wings hyaline, 

 unmarked, the veins wholly pale; first fork of radial sector plainly before 

 forking of median. 



Kaslo, 17 July, one specimen. 



Type. No. 7896, U. S. National Museum. 



This species tails in Banks' Group II, Section A,f and is allied 



*In the outer gradate series I include the outer of the two transverse 

 veins connecting the radius and the third sector; the inner of these two 

 transverse veins, however, is not included in the inner gradate series and 

 is alluded to as the subpterostigmal radial cross vein. 



f Trans. Am. Ent. Soc., xxiv, p. 24, February, 1897. 



