342 PROCEEDINGS OF THE NATIONAL MUSEUM Von. 113 
DistRiBuTION: Existing records indicate that this species is fairly 
widely distributed in the central lowlands province of the interior 
plains. The following specimens were examined: 
ILLINOIS: COOK Co.: Palos Park, June 19, 25, July 10 (CNHM); Summit, June 
11 (CNHM); Willow Springs, July 27 (CNHM). 
IoWA: DICKINSON Co.: June 24(USNM). porrawaTomIE co.: July 30 (USNM). 
MIssouRI: HICKORY Co.: West Quincy, Aug. 18 (CNHM). 
Total specimens examined: 13. 
Smicronyx floridanus (Dietz), new combination 
Desmoris floridanus Dietz, Trans. Amer. Ent. Soe., vol. 21, p. 126, 1894. 
Lectotype, here designated: Male, Florida, CM (Ulke collection). 
Description: Rostrum of male black, moderately stout; sparsely 
punctate and slightly carinate before antennal insertions; squamose 
and coarsely punctate behind antennal insertions. Head finely 
alutaceous, sparsely squamose in front. Prothorax broadly rounded 
at sides, moderately narrowed toward apex; surface black, shining, 
closely and deeply punctate, smooth median line distinct only near 
middle of disk; scales oval, very pale gray, sparse toward middle of 
the disk; prosternum shallowly emarginate, slightly impressed 
transversely. 
Elytra black, intervals thinly covered with oval, light gray scales, 
among which are a few light tan scales. Underside of thorax and 
abdomen covered with broadly oval light gray scales. Femora 
piceous, strongly clavate, thinly covered with elongate light gray 
scales. Tibiae piceous, thinly covered with scales similar to those of 
the femora; first and second pair slightly dilated at apices, third pair 
more noticeably dilated. Tarsi piceous, fourth segment extending 
only moderately beyond third; claws connate only near their base, 
moderately divergent. 
Measurements: The following measurements were taken from the 
lectotype (a male) and a male from ‘Fla.’ (Ulke collection, CM). 
All measurements are in millimeters: 
Males 
Mean Exiremes 
Body length 3. 40 3. 30-3. 50 
Elytra length 2. 20 
Elytra width at base 1. 45 1. 40-1. 50 
Prothorax length 1. 00 
Prothorax width 1a 9 1. 10-1. 20 
Rostrum length 1, 20 
Rostrum length before antennal 0. 45 0. 40-0. 50 
insertion 
Funicular segment 2 length 0. 085 
Funicular segment 3 length 0. 051 
