NO. 1988. STUDIES OF NORTH AMERICAN WEEVILS— PIERCE. 369 



setts; Lime Rock, Penns}^! vania ; Plummers Island and Bladensburg, 

 Maryland; Afton, Virginia; Retreat, North Carolina; St. Catherine 

 Island, Georgia; Jacksonville, Florida; Oak Grove, Mobile, Jackson, 

 Langdale, and Thomasville, Alabama; Natchitoches, Louisiana; Cin- 

 cinnati, Ohio; Evansville, Indiana; Detroit, ^Michigan; Iowa City, 

 Iowa; St. Louis and Klmmswick, Missouri; West Point, Nebraska; 

 Dallas and Calvert, Texas. 



The collecting dates are from March 27 to July 24. Specimens 

 from Natchitoches, Louisiana, were taken on Quercus pliellos, March 

 27, 1907. 



EUGNAMPTUS COLLARIS RUFICEPS, new variety. 



Body black; head, thorax, and appendages reddish; elytra bluish 

 black. Length 4 mm. 



, Tliis appears to be distinctly a southwestern form, but no struc- 

 tural characters of value can be found to separate it. It occurs in 

 both sexes in the Belfrage collection from Texas. 



Type.— C&t. No. 14624, U.S.Nat.Mus. 



EUGNAMPTUS SULCIFRONS Gyllenhal. 



This species was described from Carolina and seems to be distinctly 

 southern, and differs structurally only by the frontal sulcus. Speci- 

 mens are at hand from Mobile, Alabama; Dallas and Kerrville, Texas. 

 The dates of collection range from April 3 to June 20. 



EUGNAMPTUS PUNCTATUS, new species. 



Length 4-4.5 mm. Head strongly punctate. Eyes considerably 

 larger in male than in female. Thorax strongly punctate, medially 

 depressed or sulcate. Elytral interspaces convex, not wider than the 

 striae. Elj^tra almost bluish black. 



EUGNAMPTUS PUNCTATUS PUNCTATUS, typical variety. 



Black, thorax red, elytra nigrocoeruleous. 



Two female specimens are at hand, the ty|3e from Santa Rita Moun- 

 tains, Arizona, May 25 (Hubbard and Schwarz), and the other from 

 the Pinal Mountains, Arizona (Wickham). The type was taken on 

 Quercus hypoleuca. 



Type.— Cat. No. 14625, U.S.Nat.Mus. 



EUGNAMPTUS PUNCTATUS NIGER, new variety. 



Black throughout, except elytra, which are nigrocoeruleous. One 

 specimen is at hand from Arizona (Morrison). 

 Type.— Cat. No. 14626, U.S.Nat.Mus. 



EUGNAMPTUS ANGUSTATUS ANGUSTATUS Gyllenhal. 



Specimens are at hand from Washington, District of Columbia; 

 Nashville, Tennessee; St. Louis, Missouri; Texas. 

 80459°— Proc.N.M.vol.45— 13 24 



