HOMOPTERA I35 



Genus Chloroneura Walsh. 

 CHLORONEURA PURA (Stal). 



Typhlocyha pura StAl, Stettin, ent. Zeitg., x, 175, 1858. 

 Empoasca pura Woodworth, Psyche, v, 213, 1888-90. 



Sitka. 



Genus Empoasca Walsh. 



EMPOASCA COMMISSURALIS (Stal). 

 Typhlocyba commissuralis Stal, Stettin, ent. Zeitg., xix, 196, 1858. 

 Empoasca commissuralis Woodworth, Psyche, v, 214, 1888-90. — Van 

 Duzee, Trans. Am. Ent. Soc, xxi, 310, 1894. 



Sitka. 



Superfamily PSTLLOIDEA Ashmead. 



Family PSYLLID.E. 

 Genus Aphalara Forster. 

 APHALARA SCHWARZI sp. nov. 

 Aphalara sp. Schwarz, Proc. Wash. Acad. Sci., II, 539, 1900. 



Female. — Length to tip of abdomen 2.3 mm., to tip of wings 4.2 

 mm. General ground color greenish-white, the crown of the head, 

 except narrowly at the margins, the middle of the face, the thorax 

 beneath, except narrowly along the sutures of the sclerites, the coxa, 

 the femora, except apically and basally, the ventral segments, except 

 apical margins, a dot on each side of the collar, the mesonotum, ex- 

 cept a median streak posteriorly from the transverse grooved line and 

 extending to the scutellum, the depressions at base of metathorax just 

 back of the scutellum, and the dorsum of the abdomen except at the 

 sutures of the segments, dark fuscous or brown ; antennas whitish or 

 pale, with the terminal joint black. 



Wings hyaline, the front wings with a rather broad 

 transverse fuscous band at the basal third which is con- 

 nected with a fuscous band at the base of the radial cell ; 

 there is another fuscous band extending obliquely across 

 the wings from the tip of the radial cell, and two tri- 

 angular fuscous spots at the apical margin, one enclosing FlG - 6 - Genita- 

 the apex of the cubital vein, the other the lower branch SC hwarzi. 

 or fork of the cubitus. 



Male. — Length to tip of abdomen 1.8 mm., to tip of wings 3.1 mm. 

 Agrees well with the female, except that the head, thorax, and abdomen 

 are darker, almost black, the apices of the abdominal segments being 

 very narrowly whitish, the mesopleura having a whitish streak at the 

 middle, the basal margin of the mesonotum being narrowly whitish 



