1^04] MELANDERi — NEMOTELUS :iiT^ 



ADDITIONAL NOTE ON NEMOTELUS. 



BY A. L. MELANDER, PULLMAN, WASH. 



It not infrequently happens that two entomologists publish independently on 

 a certain subject. When the same species are simultaneously described in dif- 

 ferent journals there may be considerable doubt as to which name shall be used 

 as it is often difficult to determine the exact date of publication of the descrip- 

 tions. 



In this way Dr. C F. Adams and myself chanced to describe several species 

 of the dipterous genus Nemotelus, Dr. Adams' paper appearing in the Kansas 

 University Science Bulletin for November, 1905, page 221, and mine in Psyche in 

 the number for October-December, 1903, pages 1 71-183. The two species described 

 by Dr. Adams, katisensis and abdo?ninalis, when judged by their descriptions 

 certainly seem identical with two species described by me, be/luIus and trinotatus. 



Through the kindness of Dr. Adams I have secured typical specimens of 

 his species and find characters not mentioned in the diagnoses by which the 

 species can be separated. For the convenience of the future student these are 

 given herewith. 



Nemotelus abdominalis Adams. 



Female : rostellum more elongate and conical than in bdlidiis, extending 

 beyond the base of the antennae two-thirds their length. Abdominal marks extend- 

 ing half way into the segments. The pale fasciae of the abdomen are of the paired 

 type mentioned in my analytical key, but are subconfluent medially and thus present 

 the appearance of a transverse band. Length 4 mm. 



Male : Rostellum projecting two-thirds the distance to the tip of the antennae: 

 eyes contiguous for less than half their diameter, and evidently impressed along 

 their line of contiguity : front tibiae with a narrow dark ring in the middle. 



Nemotelus bellulus Melander. 



Female : Rostellum shorter, beak-like, /. e., bent downward at tip, reaching 

 about half way to the end of the antennae: pale marks of abdomen marginal. 

 Length 3-4 mm. 



Male : Rostellum very short : eyes contiguous about half their diameter, and 



