SMICRONYX WEEVILS—ANDERSON 351 
1.0mm. 
0.5mm 
ORIFICIAL PLATES 
MEDIAN LOBE 
TEGMEN om : 
INTERNAL SAC . STERNITE E 
E Qnd CONNECTING 
iS MEMBRANE \ 
TEGMENAL STRUT i 
SPICULUM i se | 
—MEDIAN STRUTS ——— 
48 
Ficures 38-49.—38, Propygidium of male (dorsal view), Smicronyx pusio LeConte. 39- 
42, 4th tarsal segment, showing claws: 39, S. sculpticollis Casey; 40, S. discotdeus (LeCon- 
te); 41, S. corniculatus (Fahraeus); 42, S. fuluus LeConte. 43, Tarsus of Promecotarsus 
densus Casey. 44-47, Mandibles (dorsal view): 44, Smicronyx sculpticollis Casey; 45, S. 
discoideus (LeConte); 46, S. corniculatus (Fahraeus); 47, S. fulous LeConte. 48-49, Male 
genitalia, S. lineolatus Casey: 48, Median lobe and tegmen (parts labeled), dorsal and 
lateral view; 49, pygidium and spiculum gastrale (parts labeled), ventral view. 
