80 KANSAS UNIVERSITY SCIENCE BULLETIN. 



Paraclius arcuatus. 



Loew, Neue Beitr., VIII, 39; Monogr., 101. 



Twenty-three specimens, both sexes, one labeled : " Lights on 

 wet mud, generally near water." 



These specimens differ quite materially from Loew's descrip- 

 tion in having the fore coxie scarcely infuscated at base, hind 

 femora only a little infuscated toward the tip, hind tibiae yel- 

 low except the tip, and the wings only a little brownish ; in 

 other words, a light variety as compared with the types. I 

 should have regarded these as a distinct species had I not the 

 undoubted arcuatus from Jamaica (by the kindness of Mr. C. 

 W. Johnson) for comparison. 



Paraclius discifer, n. sp, 



Male : Face moderately wide, with silvery dust ; front bright 

 green ; antenme yellow, third joint slightly infuscated at tip, 

 with arista a little longer than the front femur, thick at base, 

 very slender toward the tip and ending in a small oval lamella, 

 just large enough to be visible to the naked eye when held 

 against a white background. Lateral and inferior orbital cilia 

 white. Thorax bright green, a little dusted, the space between 

 the acrostichal bristles, and a roundish spot on each side above 

 the transverse suture, bronze ; pleurae rather dark with gray 

 dust, halteres and tegula? yellow, cilia of the latter black. Ab- 

 domen bright green, but little dusted ; hypopygium large, 

 somewhat greenish, the lamella? brown, with a long upper 

 corner curving backward, so that the}^ might be called crescent- 

 shaped, attached by the lower angle. Front coxae yellow, the 

 others infuscated ; femora and tibiae yellow ; all the hairs in- 

 fuscated from the tip of first joint. Wings subhyaline, the pos- 

 terior cross-vein forming a right angle with the axis of the 

 wing, the curve of the fourth vein half way from the cross-vein 

 to the tip, making a very obtuse angle. Third and fourth veins 

 parallel at the apex for a short distance. 



Female : Face a litle wider, arista normal, with moderate 

 pubesence. Thorax without the bronze spots. 



Length, 3 mm. One male, one female. 



