SMICRONYX WEEVILS—ANDERSON 333 
Median lobe of male genitalia quite elongate, as the S. constrictus 
group (compare figs. 94, 96). 
Discussion: The major differences between the species of this 
group and those of the S. constrictus group lie, as noted in the dis- 
cussion of the latter group on p. 327, in the more strongly curved ros- 
trum of the female and the subquadrate prosternal emargination of 
the constrictus group. Otherwise, the groups are very similar. Both 
groups apparently prefer various species of Helianthus and related 
genera as plant hosts. 
Map 19 gives the distribution of this group. 
ase 
Map 19.—Distribution of the specimens examined of the fulvus group (except S. floridanus 
Dietz) of Smicronyx. A, S. compar; A, S. incertus; A, S. fulous; ©, S. rectirostris; O, S. 
humilis; 4, S. sordidus. 
Key to the Species of the Smicronyx fulvuus Group 
Scales of the dorsum always some shade of yellow (fulvus, ochreous, luteus, 
EtC»)be epee Ae Lee Tees Mee erate ok Kin ae 
Seales of the domains aaa A hice, non vellow AP ise wens S hp oc 
Body color entirely reddish brown, the second segment on the funicle sub- 
equal to the first, scales of the dorsum a uniform brownish yellow. 
S. incertus (Dietz) (p. 343). 
Body color partly black or piceous, second segment of the funicle shorter 
than the first, scales plain yellow to a bright fulvous ........ 38 
Scales of the elytra not uniform, some lighter yellow and in irregular bands, 
giving the elytra a mottled appearance, rostrum of the female slightly 
GULVEd) sme, = Fes . . . . S. compar (Dietz) (p. 340). 
Scales of the elytra a rattan fulcoas! rostrum of the female almost straight. 
S. fulvus LeConte (p. 334) 
