240 PROCEEDINGS OF THE NATIONAL MUSEUM Vou. 113 
CALIFORNIA: ALAMEDA Co.: Sept. 25 (CNHM). Los ANGELES co.: No data 
(USNM); El Segundo, June 15 (Los Angeles County Museum); Pasadena, Oct. 
10 (CAS). 
Total specimens examined: 13. 
Smicronyx posticus Dietz 
FiIGuRE 63 
Smicronyx posticus Dietz, Trans. Amer. Ent. Soc., vol. 21, p. 150, 1894. Type: 
Female, Maryland, Carnegie Museum (Ulke collection). 
Description: Rostrum black, not slender, slightly curved; roughly 
punctate and scaly behind antennal insertions, remotely punctate 
before antennal insertions in the male; more remotely punctate, 
sparsely scaly behind antennal insertions, almost impunctate before 
antennal insertions in female. Antennae rufopiceous to rufous; club 
oblong-ovate and glabrous at base. Head finely alutaceous, bearing 
a few scales on front. Sides of prothorax broadly rounded, narrowed 
toward apex; strongly and confluently punctate, interspaces forming 
low concentric rugae; smooth median line present, confined to disk; 
scales elongate-ovate, mostly light brownish yellow, a few white. 
Prosternum moderately emarginate, shallowly concave; antecoxal 
ridges fairly distinct. 
Elytra moderately convex; humeri and declivities distinct; intervals 
flat, closely covered with light brownish yellow scales, among which 
are a few small patches of white scales; sides subparallel slightly past 
the middle, then rounded to the apex. Scutellum small, glabrous. 
Venter of thorax and abdomen sparsely covered with grayish white 
scales, which are more condensed along edges and sides on thorax. 
Femora moderately clavate, rufous, sparsely covered with grayish 
white scales. Tibiae rufous, slightly expanded toward apex, scales 
as on femora. Third tarsal segment much broader than first two 
segments; fourth segment rather short, claws quite small, subparallel, 
connate for approximately half their length. 
MEASuREMENTsS: The following measurements were taken from 3 
males and 2 females from Six Mile Creek, Ithaca, N.Y. (DMA), 2 
males and 2 females from Pittsburgh, Pa. (CM), 2 males and 2 females 
from Jeannette, Pa. (CM). All measurements are in millimeters: 
Males Females 
Mean Extremes Mean Extremes 
Body length 1. 86 1. 70-2. 20 1. 92 1. 80-2. 10 
Elytra length 1. 31 1. 20-1. 45 1. 33 1. 20-1. 45 
Elytra width at base 0. 72 0. 69-0. 76 0. 76 0. 69-0. 83 
Prothorax length 0. 47 0. 43-0. 53 0. 49 0. 43-0. 56 
Prothorax width 0. 56 0. 53-0. 63 0. 59 0. 53-0. 63 
Rostrum length 0. 67 0. 59-0. 79 0. 76 0. 73-0. 79 
Rostrum length before antennal 0. 20 0. 17-0. 23 0. 32 0. 30-0. 33 
insertion 
Funicular segment 2 length 
Funicular segment 3 length 
049 0.034-0.051 0. 051 
