SMICRONYX WEEVILS—ANDERSON 265 
female from Beltsville, Md. (USNM), 1 male and 1 female from Rox- 
borough, Pa. (USNM), and 1 female from Glenside, Pa. (USNM). 
All measurements are in millimeters: 
Males Females 
Mean Extremes Mean Extremes 
Body length 2. 37 2. 10-2. 50 2.51 2. 10-2. 65 
Elytra length 1. 58 1. 38-1. 70 1.74 1. 50-1. 80 
Elytra width at base 1. 02 0. 86-1. 15 1.138 0. 92-1. 20 
Prothorax length 0. 67 0. 56-0. 70 0.71 0. 56-0. 80 
Prothorax width 0. 87 0. 79-0. 95 0.94 0. 80-1. 00 
Rostrum length 1. 03 0. 96-1. 10 1.16 1. 10-1. 30 
Rostrum length before 0. 36 0. 33-0. 40 0.45 0. 40-0. 50 
antennal insertion 
Funicular segment 2 length 0.077 0. 068-0.102 0.100 0. 085-0. 102 
Funicular segment 3 length 0. 051 0.064 0. 051-0. 068 
Briotoay: Two host records were taken from the material examined: 
“On Helianthus giganteus,”’ Vienna, Va. (USNM). Hamilton (1886) 
recorded this species as on ‘Ambrosia integrifolia’”’? (now known 
to be a form of A. trifida L.) in August. The specimens were 
‘Gdentified by Dr. Horn,” and, judging from Hamilton’s description 
of them, they probably were specimens of S. amoenus. The other 
record was “Solidago sp.,”” Hocking Co., Ohio, Sept. 11 (ELS). 
Discussron: The neotype designated for this species is a female 
specimen (in excellent condition) which was evidently collected by 
Thomas Say, determined as T'ychius amoenus by Say, and sent to the 
European coleopterist Gyllenhal. It is probably the specimen men- 
tioned by Gyllenhal, in Schoenherr’s ‘Genera et Species Curculioni- 
dum” (vol. 3, part 1, 1836), in his description of Tychius amoenus 
Say. 
DistripuTion: Records from the material examined indicate that 
this species may be found on the Atlantic Coastal Plain, in the south- 
ern half of the Appalachian highlands, and in the more eastern and 
northern portions of the interior plains region. The following speci- 
mens were examined: 
CONNECTICUT: FAIRFIELD CO.: Brookfield, July (CM). 
District or Cotumsra: No data (USNM); June 6 and 27, July 22 (USNM). 
FLORIDA: PALM BEACH CO.: Jupiter, July 10 (CAS). 
ILLINOIS: CooK co.: Palos Park,July 2 and Aug. 26 (CNHM); Willow Springs, 
Aug. 21 (CNHM). 
IowA: DICKINSON co.: Lake Okoboji, July, Aug. 12 (USNM). sJoHNSON Co.: 
Iowa City, July 26 (USNM). wricut co.: Clarion, July 12 (USNM). 
ManiToBa: Baldur, July 29 (CNC). 
MARYLAND: MONTGOMERY Co.: Glen Echo, ‘‘summer,”’ June 24, July 9, Aug. 3, 
Aug. 6 (USNM). PRINCE GEORGES Co.: Beltsville, July 12 and 24 (USNM). 
MASSACHUSETTS: MIDDLESEX CO.: Framingham, July 25 (ELS). 
Missouri: wickory co.: W. Quincy, Aug. 10 (CNHM). 
586455—62——_6 
