270 Proceedings of the Biological Society of Washington. 



Dudley, Mo., March 29, 1919, collected by Mr. A. F. Satterthwait under 

 drift. One female and two males. 



Type No. 22,776, U. S. National Museum. 



In the males the branch of the lateral vitta extends in a thin line nearly 

 to the base of the thorax. The characters separating this form from costi- 

 collis do not seem of sufficient importance to indicate specific rank, but it 

 may be considered a geographical race. 



Sphenophorus glyceriae, new name. 



Sphenophorus recticulaticollis Chttn. (nee Boheman), Proc. Ent. Soc. 

 Wash., Vol. VI, p. 163, 1904. 



Since Mr. G. C. Champion (Biologia Centrali- Americana, Coleoptera, 

 Vol. IV, Part 7, 1910, pp. 160, 161), has stated definitely that he has seen 

 the type of Boheman's reticulaticollis and that it is not the species described 

 by the writer under that name, it becomes necessary to rename it, and the 

 above is suggested. 



This species has been observed by Mr. A. F. Satterthwait ovipositing 

 on Glyceria septentrionalis at Woodrow, Mo., May 23, 1919. 



Sphenophorus missouriensis, new variety. 



Form similar to pontederiac, much smaller, depressed, color dull reddish, 

 natural coating thin, pruinose. Rostrum rather long, somewhat strongly 

 and uniformly arcuate, moderately compressed, finely carinate at middle, 

 scarcely produced at apex. Thorax subquadrate, subapical fossa shallow, 

 lateral vittae and punctation about as in glyceriae, in which it also agrees 

 closely in most other characters. 



Length 6.5 mm.; width 2.2 mm. 



Two males collected with S. glyceriae on Glyceria septentrionalis, Wood- 

 row, Mo., May 23, 1919 (A. F. Satterthwait). 



Type No. 22,777, U. S. National Museum. 



This variant differs so markedly in its more slender form, different shaped 

 rostrum, apparently longer legs and in lacking the natural coating as to 

 merit a varietal name. 



