A. A. GIRAULT. 261 



nois. I have captured both sexes of it with the sweeping- 

 net at Urbana (July 1, 1910) and on the windows of a green- 

 house in the same place (May 17, 31 and October 19, 1910); 

 also Butler, Illinois, July 14, 1910 on stable windows (1 9 ).* 

 These specimens were somewhat lighter than the typical 

 Georgia specimens, somewhat olivaceous, somewhat smaller 

 and with slightly narrower fore wings. The yellow streaks 

 on the scutum were distinct. 



The type of americayuis Brues is a single female mounted 

 in xylol-balsam (formerly tagmounted) labelled " Gonato- 

 cerus americanus Brues. 9 . 22,256. Type. Milw. Co., 

 Wis. VI-8, 1906." It may finally turn out to be anthoiioyni 

 which it certainly resembles very closely in structure. The 

 male antennae in antho7iomi have the funicle joints longitu- 

 dinally striated. 



The following new species — brtinneus — is closely allied 

 with anthonomi and americayuis, but differs by its pure brown 

 ochre color and structurally in having more slender antennas 

 and in being smaller and more graceful. Otherwise it is cer- 

 tainly difficult to distinguish between these three species, 

 though they appear to be distinct. 



3. Gonatocerus bruiineus species nova. 



Normal position. 



Female. — Length, 0.75 mm. Moderately small for fhe genus. 



The same as the species americanus and anthonomi in general struc- 

 tures. 



General color uniformly brown ochre, the legs and antennae concolor- 

 ous, the tips of tibiae and the tarsi more pallid. Wings uniformly, 

 slightly, infuscated, their ciliation brownish ; intersegmental spaces of 

 the abdomen lighter in color. Scape with a pallid ring just distad of 

 the apex of the bulb. 



Fore wings with the longest marginal cilia longer than any of the 

 proximal tarsal joints, but not more than a fourth of the greatest wing 



* Also at Centralia, Illiois, August 25, 1909, 1 female on the window 

 of a shed on a farm. And from the U. S. National Museum collec- 

 tions : one female labelled " Crevecoeur. Onaga, Kans. 412"; one 

 female labelled " Oswego, N. Y., August 4, 1896". The species must 

 be widely distributed in the United States. .Subsequently, a female in 

 the same collection labelled " Go7iatoceriis websteri Ashm. 9 . Ohio. 

 1705". 



TRANS. AM. ENT. SOC. , XXXVII. 



