4 Psyche [February 



This interesting species is not a typical I^eptis, for the eyes of the male are dichop- 

 tic. In form it resembles Dialysis, but the front tibiae are without spurs and the 

 hind tibiae have two as in typical Leptis. The anal cell is closed, but the open 

 anal cell is not a fixed character. Among twenty-six specimens of L. mystacea 

 seven have the anal cell closed, as shown in Williston's Manual, 1908, p. 157, fig. 

 51, although the table on page 163 says open. This character also varies in L. 

 plumbea (4 open and 3 closed) and L. pundipemiis (2 open and 8 closed), one speci- 

 men has it open on one wing and closed on the other. A specimen of L. albicornis 

 has the discal cells open. 



Chrysopila davisi sp. nov. 



Female. Head velvety black; antennae black. Thorax black, covered with a 

 dense golden yellow tomentum, similar to C. fhoracica pleurae, scutellum and the 

 entire abdomen velvety black. Femora black, tibiae and metatarsi light yellow; 

 the remainder of the tarsi blackish. Halteres black. Wings smoky black. 

 Length, 15 mm. 



Two specimens collected by Mr. William T. Davis, Clayton, Georgia, "2,000- 

 3,700 ft." June, 1900. Holotype in the author's collection. This species seems to 

 be intermediate between C. velutina, Lw. and C. fhoracica Fabr., the wings and abdo- 

 men are like the former and the thorax like the latter. 



Nemotelus bonnarius sp. nov. 



Male. Face shining black, facial projection moderate, proboscis double the length 

 of the head, bent slightly beyond the middle; a small spot above the base of the an- 

 tennae; eyes sub-contiguous; antennae black; thorax and scutellum black, with a 

 small white spot on the hiuneri. Abdomen mostly white, the first segment black 

 except at the posterior angles; second white except for a short anterior, central 

 margin of black; third white except a small black spot at the anterior angle; fourth 

 black, except for a narrow lateral and posterior margin, which is often interrupted 

 posteriorly leaving a dorsal spot, fifth black, with a narrow lateral and posterior 

 margin dorsally expanded; venter black with a large irregular white spot on the 

 second, often extending onto the third segment. Femora black, tips of the femora 

 and the greater part of tibiae and tarsi white, middle of the posterior tibiae 

 black and of the front and middle tibiae brown. Halteres white. Wings hyaline, 

 veins light yellow, third vein furcate. Length, 5 mm. 



Female. Front very broad with a small white spot at the lower end of the frontal 

 orbits, narrowly separated from an elongated spot on the facial orbits; proboscis 

 short and thick, bent near the middle. Abdomen black, with a small, white, 

 dorsal spot on the posterior margins of the second, third, fourth and fifth segments, 

 the lateral margins are narrowly margined with white, which often extends for some 

 distance around the posterior angles. 



Ten males and eight females. Farewell Creek, South Saskatchewan, August, 1907, 

 collected by Mrs. Varah A. Armstrong. One male, Ramsey Co., Minn. Holotype 

 and Allotype in the author's collection. 



Allied to N. kansensis Adams, but distinguished by the greater amount of black 



