INDEX 
Rhyacophila, minora, 467, 474, 475 
fig.), 4 
montana, 465 
mycta, 468, 480, 487, 488 
nigrita, 467, 480, 484, 485 (fig.), 487 
parantra, 465 
shenandoahensis, 468, 480, 483 (fig.) 
teddyi, 465 
torva, 467, 469, 470 (fig.), 481 
vibox, 468, 480, 48/, 482, 483 (fig.) 
vuphipes, 465 
sp. 1, 477 (fig.), 478 
sp. 2, 485 (fig.), 486 
sp. 3, 487, 489 (fig.) 
sp. 4, 487 
sp. 5, 491 (fig.) 
Rhynchaenus constrictus, 322, 328, 329, 
338 
Rimatula subg., 445, 447 
ritteri, Palaemon, 607 
robusta, Epinannolene, 113 (fig.), 116 
robusta, Pseudoleria, 523 (fig.), 538, 
539, 540 
robustus, Neoconops, 73 
Rosaceae, 194 
rostratus, Pseudocyclops, 389, 49, 50 
(fig.);51 (fig.), 52 (fig.), 54 
rotundicornis, Neoleria, 558 
rubignosus, Haplopappus, $25 
Sideranthus, 325, 326 
rubriceps, Lignydesmus, 88, 89 
rubrocinetus, Pseudocyclops, 39, 54, 56 
(fig.), 57 (fig.) 
rubromarginata, Sigiria, 24 
Rudbeckia amplexicaulis, 276, 278 
sp., 193, 278 
Rudbeckiae, 335 
rufescens, Thomomys talpoides, 532 
ruficauda, Helomyza, 560 
Leria, 560 
Neoleria, 556, 559, 560 
Postleria, 559 
ruficornis, Spanoparea, 563 
rufipes, Heteromyza, 517 
rufiventris, Helomyza, 517, 518 
Tephrochlamys, 501 (fig.), 5/7, 518 
rufofemoris, Microconops, 71 
rufulus, Smicronyx, 202, 321, 322 
Ruhoff, Florence A.; see Drake 
Ruhoff, 125 
rushii, Bulimulus, 433, 434 
rusticus, Smicronyx, 202, 3438, 344 
and 
Sabestena, 166 
africana, 167 
alfiertt, 166 
sabroskyi, Amoebaleria, 577 (fig.), 578, 
587 
sackeni, Amoebaleria, 577 (fig.), 578, 
579, 580 
sagittatus, Smicronyx, 201, 220, 222 
salina, Cuscuta, 209 
Salsola pestifer, 295 
sp., 193 
sandakana, Perissonemia, 134, 149 (fig.) 
satanicus, Conops, 62, 64 
655 
scalator, Smicronyx, 201, 215, 216 
Seansicochlea, 485 
subg., 432, 447 
seapalis, Desmoris, 324 
Smicronyx, 192, 198, 202, 323, 324, 
325, 341, 359 (fig.), 366 (fig.) 
seapalis group, Smicronyx, 199 (fig.), 
202, 323, 324 
schadei, Bulimulus bonariensis, 433 
Schizopera minuta, 394 
schmeili, Paracamptus, 394 
Scholvienia, 451 
tarmensis, 451 
tarmensis weeksi, 451 
Schroederella, 510, 555 (figs.), 565, 569 
fuscopicea, 555 (fig.), 570 
iners, 555 (fig.), 569, 571 
Schroederia, 569 
iners, 571 
scitula, Zorotingis, 155 (fig.), 169 
Scoliocentra, 511, 555 (figs.), 571 (key), 
576 
fraterna, 555 (fig.), 571, 573, 574 
helvola, 582 
helvola angustifrons, 582 
latimanus, 571 
thoracica, 571, 574 
tincta, 555 (fig.), 571, 572, 573, 574 
Scrophulariaceae, 195 
sculettata, Amoebaleria, 577 (fig.), 578, 
584 
sculpticollis, Smicronyx, 192, 197, 201, 
204, 212, 216, 217, 218, 219, 220, 
225, 228, 279, 347 (fig.), 350 (fig.), 
351 (fig.), 352 (fig.), 361 (fig.) 
sculpticollis group, Smicronyx, 191, 199 
(fig.), 201, 204; *205, “216, 1217 
(key), 226, 231, 234, 236 
sculptilis, Panamadesmus, 85 (fig.), 89, 
90 
Seutalus, 483, 450, 451 
tupacii, 450 
subg., 483, 450 
scutellata, Heteromyza, 515 
Secytonotus digitatus, 98 
Seminellogon, 86 
panamicus, 86 
seminiger, Conops, 62, 63 
de Meijerei, Conops, 62 
septentrionalis, Leria, 558 
Serenthia pictipennis, 180 
seriatus, Smicronyx, 201, 
231, 353 (fig.) 
sericea, Pluchea, 304 
serrata, Heleomyza, 497, 577 (fig.), 589 
590, 591, 592, 594 
Helomyza, 517, 589 
Leria, 589 
Musca, 589 
serrataria, Leria, 593 
serratus, Sigmogonotropis, 86 
setulosus, Smicronyx, 202, 306, 307 
Sharpia, 189 
shenandoahensis, Rhyacophila, 468, 480, 
488 (fig.) 
Sideranthus rubignosus, 325, 326 
217, 228, 229, 
? 
