]8 Journal New York Entomological Society. [Vol. xxiii. 



rounded and the anterior angles rather prominent. Opercula oblique 

 with the apex turned inward as in synodica. Last ventral segment 

 with the base longer than the sides which gradually converge to the 

 rounded end. Valve 3.5 nim. in length. Uncus when viewed in 

 profile hooked ; when viewed from above narrowed toward the deeply 

 notched apex. Fore wing with the basal areole oblong and square at 

 apex; both pairs of wings more transparent than in synodica, with the 

 veins commencing at the transverse fold infuscated. Costa of the 

 fore wings yellowish ; all of the wings fuscous and bridge orange at 

 base ; flaps bright orange. The dorsum of this species is blackish, 

 covered with light-colored appressed 'hairs. Head above black with 

 an irregular pale band before the eyes and a yellowish spot on each 

 supra-antennal plate ; a light spot on the median sulcus extends to 

 the posterior margin. Pronotum with the central portion black with 

 the yellow color of the grooves extending well upward ; margined 

 with yellow, that of the hind margin being particularly definite. 

 Mesonotum black with the W-mark On the anterior part represented 

 by its two outer lines, below these the X, which is black touched on 

 the apex with pale; hind margin around to the wings, yellowish. At 

 the tip of each anterior line of the X there is a conspicuous black 

 impressed puncture surrounded by golden hairs. Metanotum with 

 posterior edge greenish yellow. Dorsum of the abdomen black with 

 all of the segments edged with yellow. Supra-anal plate dorsally 

 black with the sides yellow. Uncus nearly black. Beneath, the valve 

 pale, also the posterior margins of the abdominal segments, the last 

 one being about one half pale. The opercula black broadly edged 

 with pale. 



In addition to the type I have examined 1 1 paratypic males all from 

 the same place as the type and from Mr. Clarence H, Kennedy. Mr. 

 Van Duzee has also sent to me a female from Fresno Co., Cal. (J. 

 C. Bradley, Collector), that probably belongs . to this species and 

 which has the deep notch in the last ventral segment broadly U- 

 shaped, instead of V-shaped as in mcrccdita. Okanagana tniniita in 

 some respects closely resembles O. moxcdita, especially when large 

 individuals of the one species are compared with small examples of the 

 other, but when viewed in series the head of mimifa is seen to be 

 proportionately much smaller than that of mcrccdita. Thus in a 

 large mimita and a small mcrccdita, each expanding about 38 mm.. 



