580 



PROCEEDINGS OF THE NATIONAL MUSEUM 



Rhincodon, 85 (table), 94 stable) 



typus, 85 (table) 

 Rhincodontidae, 85 (table), 94 (table) 

 Rhizoprionodon, 78, 88 (table), 95 

 (table) 



acutus, 88 (table) 



lalandei, 88 (table) 



longurio, 88 (table) 



oligolinx, 88 (table) 



porosus, 88 (table) 



taylori, 88 (table) 



terraenovae, 88 (table) 

 Rhizoprionodon, subg., 88 (table), 95 



(table) 

 rhois, Cerceris, 350, 60S, 523 

 Rhus copallina, 413, 420 



glabra, 447, 472, 484, 503 



trilobata, 251 

 Rhus sp., 404, 465 

 Rhycherus, 173 



filamentosus, 173 

 Rhytiodus, 131 

 Ribes sp., 251 

 Richardia scabra, 514 

 Richards, O. W., A contribution to the 

 study of the genus Sphaerocera 

 Latreille in Central and South 

 America (Diptera: Sphaerocer- 

 idae), 223-242 

 rigida, Solidago, 477, 480 

 rinconis, Cerceris, 370, 371, 523 

 ritteri, Centroscyllium, 91 (table) 

 robertsonii, Cerceris, 336, 337, 416, 426, 

 428, 434 



Cerceris, robertsonii, 348, 354, 424, 

 426, 428 (map), 523, 540 (fig.) 

 robinsoni, Proeulia, 183 

 robustus, Benthocometes, 4, 7 



Grammonus, 10 



Oligopus, 5, 6, 10 

 Roeboides, 135 

 Rosa sp., 511 



rosaceum, Ambystoma, 263 (table), 266 

 rosaceus, Trichophryne, 173 

 rosapinnis, Pseuderythrinus, 145 

 rostratus, Somniosus, 93 (table) 

 ruandana, Sphaerocera, 224 

 ruba, Lethata, 99, 108, 112 (fig.), 114 



(fig.) 

 rubra, Microbrotula, 4 

 Rubus villosus, 50 

 rufa, Cerceris, 348, 354, 448 (map), 449, 



523 

 ruficollis, Agrilus, 413 

 rufinoda, Cerceris, 336, 367, 392, 394 

 Cerceris rufinoda, 346, 351, 367, 



376, 377, 383, 392, 393 (map), 



395, 523, 538 (fig.) 

 rufinoda group, Cerceris, 358 

 rufinoda-echo group, Cerceris, 366 

 rufipes, Buprestis, 413 



Eurymetopon, 337, 438 

 rufopicta, Cerceris, 353, 424, 430 (map), 



540 (fig.) 

 ruthveni, Holbrookia maculata, 278, 



279, 320 



rutshuruensis, Sphaerocera, 224 

 rybyensis, Cerceris, 354 



Sabal eltonia, 361 

 sacbrella, Mortonia, 404, 440 

 sacki, Cnemidophorus, 290 

 salicina, Baccharis, 420, 440 

 saligna, Chilopsis, 366, 371 

 Salix, 386 



exigua, 495 



taxifolia, 372, 440 

 Salix sp., 251, 413, 438, 465, 495, 498 

 salome, Cerceris, 483, 484 

 Salsola kaU, 372 



kali tenuifolia, 356 



pestifer, 404, 482 

 Salvadora grahamiae, 251, 276, 316 

 (table), 320 



grahamiae grahamiae, 308 



grahamiae lineata, 308 

 Sambucus canadensis, 379, 465, 472 

 sandiegensis, Cerceris, 348, 353, 430 



'(map). 432 

 sanguifluus, Antennarius, 175 

 sanguineus, Antennarius, 174, 177, 182 

 Sapindus drummondii, 465 



saponaria, 372, 404, 409, 437 

 Sapindus sp., 418, 440 

 saponari, Spindus, 482 

 saponaria, Sapindus, 372, 404, 409, 437 

 sarasa, Antennarius, 174, 181 

 Sarcodaces, 135 



sarmenti, Squaliolus, 78, 93 (table) 

 sarothrae, Gutierrezia, 250, 372, 511 

 sarothroides, Baccharis, 465, 466 

 Sasola pestifer, 366 



sativa, Pastinaca, 356, 377, 386, 442, 502 

 Satureia hortensis, 361 

 satyropa, Lethata, 99, 109, 111 (fig.), 

 114 (fig.) 



Stenoma, 109 

 Sauria, 275 



sayi, Cerceris, 506, 508 

 scaber, Phrynelox, 173, 176, 179, 181 

 scabra, Richardia, 514 



Sphaerocera, 224 

 scabricula, Sphaerocera, 224 

 scalrella, Mortonia, 373 

 Scapanorhynchidae, 79, 83 (table), 94 



(table) 

 Scapanorhynchus, 83 (table), 94 (table) 



owstoni, 80, 83 (table) 

 Scaphiopus, 267 



bombifrons, 266, 316 (table), 318, 

 320, 321 



bombinus, 250 



hammondi, 251, 254, 256 (fig.), 266, 

 268 (table), 270, 320 



holbrooki, 267 



intermontanus, 250, 266, 316 (ta- 

 ble), 317, 320, 321 

 Scaphiopus sp., 269 



