ART. 4 NORTH AMERICAN WEEVILS BUCHANAN 11 



sixth nioniliform, seventh transverse. Prothorax with sides feebly 

 rounded, widest at or before middle, pronotal tubercles reduced to 

 broad, irregular-shaped, flat-topped, barely elevated areas, each with 

 a seta-bearing puncture, the entire surface normally covered with scales. 

 Elytra with humeri evenly rounded, sides subparallel, sutural inter- 

 vals, and in one specimen the third and fifth also, slightly prominent 

 from base to middle; intervals broad, nearly flat and each with a 

 row, regular or somewhat confused, of nearly straight, suberect, pale 

 and brown setae; serial punctures small and rather close. Metepis- 

 ternal suture visible. Abdominal punctures a little smaller than in 

 ohlongus and well separated. A few plumose scales can be detected 

 here and there over most of the undersurface, but are not conspicu- 

 ous except on fifth ventral, where they are numerous and deeply split. 



Type.—K female (Cat. No. 41749, U.S.N. M.), 5.4 mm. long, and 

 7 paratypes. 



Type locality. — The Dalles, Oreg. (Hubbard and Schwarz). 



This species looks considerably like a Sitona, due to the elongate, 

 subparallel body and the bristling elytral setae. 



MESAGROICUS ELONGATUS var. NEVADIANUS, new variety 



One male (Casey collection). Length, 5 mm.; width, 1.9 mm. 

 Shape of elongatus, though slightly narrower, scales cinereous, setae 

 pale brown and white. Antennae, eyes, and rostral groove about 

 as in elongatus. Pronotal granules not prominent, each with a rela- 

 tively large puncture occupying nearly the entire summit. Elytral 

 intervals broad, none of them more prominent toward base. Humeri 

 distinctly less prominent than in elongatus. First and second abdom- 

 inal segments broadly concave in male, the concavity with the 

 punctures denser, and the scales more abundantly plumose than in 

 the corresponding area in male elongatus. Median lobe of male geni- 

 talia as in elongatus. Metepisternal suture obscured by scales. 



Type locality. — Nevada. 



Type.—C&t. No. 41750, U.S.N. M. 



MESAGROICUS ELONGATUS var. INCERTUS, new variety 



Two specimens (male and female). Length, 4.25-5 mm.; width, 

 1.7-2.1 mm. Scales brown, elytra with a few, vague, pale mottlings, 

 the usual lateral prothoracic line, upper eye border, and humeral spot 

 pale. Eyes moderately prominent (male) or feebly so (female). First 

 funicular segment fully twice (male) or less than tv/ice (female) length 

 of second; outer segments a little heavier than in elongatus. Pronotal 

 granules about as in nevadianus. Metepisternal suture well defined. 

 Plumose scales are numerous and highly developed on the abdomen 

 of male but sparse and feebly plumose in female. 



Type.~k female (Cat. No. 41751, U.S.N. M.), 4M mm. long, and 

 1 paratype. 



Type locality. — Pullman, Wash. (J. W. Hungate, collector.) 



