658 PROCEEDINGS 
Smicronyx, spretus group, 199 (fig.), 
201, 204, 205, 259, 260 
spurcus, 202, 282, 284 
squalidus, 202, 306, 310, 311, 
(fig.), 361 (fig.) 
squamulatus, 202, 282 
swertiae, 195 
tardus, 201, 205, 
214, 368 (fig.) 
ear 202, 306, 308, 311, 
(fig.) 
eG ALE ss 
ig ) 
ty piaided 
358 
206, 209, 210, 
358 
202, 263, 27 
vy 
‘ 
y, 278, 369 
192, 197, 201, 217, 218; 
219, 222, 225, 228,’ 279, 361 
(fig. ) 
utilis, 189, 192, 202, 281, 282, 295, 
296, 297, 357 (fig.), 365 (fig.) 
vallium, 194 
vestitus, 198, 201, 204, 216,. 217, 
218, 2382, 234, 284, 353 (fig.) 
vitiosus, 202, 348, 344 
wickhami, 202, 321, 322 
subg., 191, 192, 198, 194, 195, 196, 
197, 198, 199 (fig.), 201, 203, 204 
(key), 216, 279, 284, 323, 324 
socitum, Gonycentrum, 128, 148 (fig.) 
Solidago sp., 193, 222, 265 
solla, Parada, 189 
sordidus, Smieronyx, 202; 329; 333, 33 
335, 3836, 337, 340, 341, 360 
(fig.), 367 (fig.) 
sororcula, Suillia, 500, 501 (fig.), 502, 
608, 505 
Spanoparea, 510, 555 (figs.), 561, 563, 
564, 565 
discolor, 556, 562 
dudai, 563 
laffoont, 555 (fig.), 563 
limbinervis, 563 
obseuriventris, 563 
ruficornis, 563 
variabilis, 563 
W ralkeri, 555 (fig. ue 562 Z, 565 
sparsus, Smie ronyx, 190, 202 2, 
332 
speciosus, Chrysothamnus, 304 
spectabilis, Amoebaleria, 577 (fig.), 579, 
586 
Blepharoptera, 586 
spectrum, Auris dillwyniana, ae 2 
specus, Aecothea, 501 (fig), 519, 
Blephariptera, 521 
Sphaeraleea angustifolia, 261 
sp., 194, 261 
Sphaericdesmidae, 96 
Sphaeriodesmus, 96 
conformans, 983 (fig.) 
spinifera, Eucanuella, 394 
spinigerellus, Leria, 593 
spinosa, Eecoptomera, 
628, 529 
Viatica, 528 
spinosus, Viatica, 528 
Spirea sp., 518 
Spirostreptidae, 112 
967 
Oat, 
331, 
26 
523 (fig.), 524, 
OF THE NATIONAL MUSEUM 
VOL. 113 
splendida, Macrophyllodromia, 422, 424, 
425 
splendidus, Australoconops, 65, 68 
Conops, 64, 68 
sporadicus, Bulimulus, 432, 434, 445 
Bulimulus bonariensis, 432, 433 
Bulimulus sporadicus, 432 
Bulimus, 432 
spretus, Smicronyx, 195, 201, 203, 204, 
ce 261, 349 (fig.), 355 (fig.), 363 
) 
spretus group, Smicronyx, 199 (fig.), 
201, 204, 205, 259, 260 
spurea, Lutomyia, 530 
spurcus, Simcronyx, 202, 282, 284 
squalidus, Smicronyx, 202, 306, $10, 311, 
358 (fig.), 361 (fig.) 
gehancc Paracis, 457, 459, 462 
squamulatus, Smicronyxs, 202, 282 
squarrosa, Grindelia, 326 
staheli, Parastenocaris, 395 
stammeri, Bathynella natans, 396 
stelzneri, Neopetraeus, 484 
Stemmiulidae, 109 
Stemmiulus, 109 
bieculatus, 110 
; canalis, 106 (fig.), 109 
Stenostylus subg., 438 
strebeli, Orthalicus longus, 455 
Stridulivelia, Water-striders of the sub- 
genus, from Mexico, Central Amer- 
ica, and the W est Indies, 413 
Stridulivelia subg., 413, 414, 415 (key) 
Striga sp., 195 
Strongy lodesmus, G4 
Strongylosomidae, 107 
Stylodesmidae, 96 
subcostatus, Protoglyptus, 446 
subrobusta, Pseudoleria, 523 (fig.), 534, 
539, b4 AD 
suecinea, Drymaeus, 438 
Succinea, 438 
succineus, Drymaeus, 438 
Suillia, 498, 499 (key), 501 (fig.), 508 
apicalis, 499, 501 (fig.), 505 
assimilis, 507, 508 
barberi, 499, 501 (fig.), 507 
bicolor, 501 (fig.), 502 
chaetomera, 504 
limbata, 500, 501 (fig.), 502, 503, 
505 
leewi, 499, 500, 501 (fg.) 
lengipemnis, 499, 500, 501 (fig.), 506 
nemorum, 499, 501 (fie.), 507 
plumata, 500, 501 (fig.), 604 
quinguepunctata, 500, 501 (fig.), 
502, 505 
sororcula, 500, 501 (fig.), 502, 503, 
505 
Suilliinae, 497, 498 (key), 499 
sultana, Helix, 455, 456 
Orthalicus, 456 
Sultana, 456 
Sultana, 455 
sultana, 456 
subg., 455 
