84 PROC. ENT. SOC. WASH., VOL. 24, NO. 2, MAR., 1922 



feebly dilated, finely but distinctly punctate, alutaceous and dull except for the 

 shining tip. Front more coarsely punctured, the punctures confluent, forming 

 longitudinal grooves. Eyes not prominent. Antennae inserted at basal %, 

 first joint piscescent, equal at least to the next two, but shorter than next three, 

 2d joint subcylindrical much longer than wide, and more than reaching eye. 

 Thorax wider than long (5 to 4) widest behind middle, sides narrowed at base, 

 decidedly converging from middle to the constricted apex. Punctuation strong 

 and close, but not coarse. Basal fovea distinct, reaching middle. Elytra 8/13 

 as wide as long, widest behind middle, humeri subangulate, striae not very 

 deep, intervals convex, nearly twice width of striae, both intervals and striae 

 with rows of fine white hairs. Meso- and meta-sternal side pieces covered with 

 white scales. Punctuation of 1st and 2d ventrals rather fine and sparse, coarser 

 on metasternum. Legs black, first joint of mid and hind tarsi with a strong 

 spine, tibiae unarmed, fore and mid femora equally, not excessively dilated. 

 Length, 2.2 mm. 



Hab.: Iowa. 



Type, a male in my collection from Lake Okoboji. 



In Fall's key this species will come next to spinipes Fall, from 

 which it can be easily separated by the elongate, almost cylin- 

 drical second antennal joint which is as long as, or longer than, 

 3 + 4, while in spinipes the 2d joint is more triangular in outline 

 and distinctly shorter than 3 + 4. The beak in spinipes is also 

 more strongly and evenly curved, the thorax less convex 

 longitudinally and with weaker punctures. 



Apion impunctistriatum, melanarium, robustum, minor, and 

 griseum, already recorded from Iowa, were found at Okoboji, 

 and, in addition, the following 7 which are new to the state 

 list: 



A. occidentals Fall. Inhabits most of the country west of 

 the Mississippi River. 



A. punctinasum Smith. Fall gives its range as Wyoming, 

 Nevada, and B. C. I also have Alberta specimens. 



A. tenuirostrum Smith. 15 specimens. Known from Kansas, 

 Nebraska, Texas, Colorado and Montana. 



A. turbulcntum Smith. Three specimens. The mucro of 

 the mid-tibiae of the one male is dentate, of the hind tibae 

 simple. 



A. centrale Fall. Known from Colorado, Montana, Hudson 

 Bay Territory, and British Columbia. 



A. varicorne Smith. A dozen individuals, which agree best 

 with Fall's var. b. The range of this form is given as "North- 

 West Territory," Nebraska, Texas, and Colorado. 



A. carinatum Smith. Ranges over most of the country, but 

 not common. 



Actual date of publication, March 23, 1922. 



