56 CYRTIDAE OF NORTH AMERICA 



Habitat. — Gallatin County, Montana. Elevation, 6,400 feet. 

 July 7, 1900. (E. Koch coll.) 



Tijpe. — In collection of A. L. Melander. 



Since writing the above I have received a specimen taken at 

 Corvallis, Oregon, August 18, 1918, (F. H. Lathrop). 



Acrocera liturata (PI. X, fig. 30.) 



Acrocera liturata Williston, Trans. Amer. Ent. Soc, xiii, p. 294, (1886). 



"Male. Yellow; three broad, dorsal, thoracic stripes, pectus and tip of the 

 tarsi black; abdomen with irregular brown fasciae. Length, 3 mm. 



"Vertical triangle and occiput black, the latter poUinose. Dorsum of thorax 

 honey-yellow, the humeral and post-alar callosities yellowish-white, in the 

 middle with a broad black stripe, attenuated behind, and on each side a large 

 elongate spot or stripe. Pleura dark; pectus black. Scutellum black above, 

 the margin broadly honey-yellow. Tegulae white. Abdomen yellow, trans- 

 lucent, the second and third segments on sides brown, connected by a basal 

 fascia, narrower on the third, dilated triangularly in the middle; fourth segment 

 with a median, basal subtriangular or "T"-shaped spot. Venter brown in 

 middle. Legs yellowish white, the tip of all the tarsi and claws black. Wings 

 hyaline, veins yellowish." 



Habitat. — Washington. 



I have a female of this species from Stanford University, Cali- 

 fornia (H. Morrisson coll., Oct., 1914). The thorax has a 

 rather narrow median black stripe. The pleura are brown, not 

 very dark. The venation, of which Williston does not speak, is 

 typical. The specimen is shrivelled so that the markings on the 

 abdomen are difficult to make out. There is only a narrow black 

 base to the scutellum. The fourth and fifth segments of the 

 venter each have a round black spot on each side, a larger spot 

 on the third. Length, 3 mm. 



Another female of liturata was recently sent in to the National 

 Museum from Cedar Pass, South Dakota (C. H. Over coll.). In 

 this specimen the scutellum is jet black. The yellow of the 

 thorax is much darker and the median stripe of the thorax much 

 broader. The antennae are broken off. The two oval spots on 

 the thorax arc large and merge with the median stripe before the 

 scutellum. The markings of the abdomen are different from those 

 in the California specimen. There is a basal subtriangular or 

 "T "-shaped black spot on the first abdominal segment; the nar- 

 row base and sides of the second segment are black, and there is 

 a median wedge-shaped mark. The third segment has a broad 



