Ataenius apicalis Hinton 1936

Ataenius apicalis Hinton, 1937b:195.—Cartwright, 1948:151

DESCRIPTION.—Length 4.1 to 4.9 mm; width 1.7 to 2.4 mm. Oblong, moderately convex, shining, black. Head slightly convex, clypeus broadly, shallowly emarginate, rounded each side of emargination, sides nearly straight to right-angled genae, margin finely recurved, surface weakly transversely rugulose over anterior third, middle finely punctate, punctures separated by slightly more than their diameters, gradually finer and closer just in front of basal band of close moderate punctures which are generally separated by less than their diameters. Pronotum rectangular, anterior angles obtusely rounded, posterior angles broadly rounded, margined laterally and basally, marginal setae rather short, about as long as width of marginal groove and separated by two or more times their lengths; surface throughout with close, mixed punctures, the larger punctures closer laterally, especially in the angles where separated by less than their diameters, scattered on disc where separated by one to several times their diameter, gradually slightly finer anteriorly; fine punctures noticeable throughout. Elytra 2.6 times length of pronotum, moderately convex, basally margined, humeri weakly dentate, sides subparallel; striae fine, crenate-punctate, slightly wider apically; intervals moderately convex, minutely punctate, apically eroded each side; lateral intervals not different. Mesosternum shagreened, close, fine, short decumbent hair, carinate between the coxae. Metasternum smooth, shining, midline fine, moderately deep, with scattered, minute punctures except for a few occasionally moderate punctures posteriorly, a little scabriculate sculpture at extreme sides, metasternal triangle smooth, very moderate in depth. Abdominal sterna with rather close, fine to moderate punctures from side to side, deeper at sides, separated by about their diameters, sterna finely fluted in front. Eroded area of pygidium roughly scabriculate, apical margin smooth, convex, shining. Anterior femora with perimarginal groove, shining, quite evenly punctate, the punctures finer in front, posteriorly separated by their diameters, three large elongate punctures along edge below tibial insertion. Middle and hind femora much alike with very fine, scattered, numerous punctures, hind femora with a row of three or four coarse punctures at knee, and postfemoral line half the distance from knee to trochanter. Posterior tibiae with strong accessory spine, fringe of six setae together and another between accessory spine and spurs, first tarsal segment about one-fourth longer than long spur, about same length longer than following three segments combined.

HOLOTYPE.—USNM 68188.

TYPE-LOCALITY.—Mexico: Vera Cruz, Minatitlan.

SPECIMENS EXAMINED.—150+.

DATES COLLECTED.—March 16 to December 10.

DISTRIBUTION (Figure 16).—Alabama: Black Warrior National Forest, Monte Sano State Park, Sheffield, Trinity. Arkansas: Cohan Plant, Devils Den State Park, Hart Ford, Little Rock, Stuttgart, Taylor, Tuckerman, Washington County. Delaware: “Delaware.” Florida: Torreya State Park (Liberty County). Georgia: Arlington, Atlanta, Mount Berry, Newton. Illinois: Dongola (Union County), Olive Branch. Indiana: Hovey Lake (Posey County). Kansas: Lawrence. Kentucky: Anchorage (Jefferson County), Arora (Monroe County). Louisiana: Calcasieu, Copley, Fount, Harahan, Lafayette, New Orleans, Pilate Opelousas, Simsboro (Lincoln Parish). Maryland: Beltsville, College Park, Edgewood, Hancock. Michigan: Allegan. Mississippi: Madison County, Pearl. Missouri: Dardene Prairie. Nebraska: Lincoln. North Carolina: Wake County. Ohio: Athens, Franklin County, Scioto County. Pennsylvania: Philadelphia Neck. South Carolina: Anderson County, Cherokee County, Clemson, Clinton, Florence, Lancaster, McCormick, Pee Dee, Union County. Tennessee: Citico, Cookeville, Jackson, Memphis, Oak Ridge. Texas: Anderson County, Devers, Harris County, Liberty County, Orange County, Seabrook. Virginia: Arlington, Paris, Richmond. West Virginia: Kanawha.