618 
azteca 15, 37, 195, 
205, 386, 421, 483. 
aztecum 456. 
aztecus 3285. 
azurea 324, 586. 
Baccata 336. 
badia 258. 
badius 258. 
baeri 226, 315. 
baetica 184, 410, 421. 
baicalensis 3586, 511. 
baikalensis 511. 
bairucumensis 105. 
balassogloi 258. 
baldiniana 339. 
balearica 386. 
balneorum 258. 
balteata 38, 371. 
balteatus 37, 38, 527, 
528. 
banksiana 180. 
banksianus 180, 181. 
barbara 302, 587. 
barbareae 105. 
barbarum 466. 
barbata 105, 205,226, 
421, 587. 
barbatula 101, 162. 
barbatum 456. 
barbatus 17. 
barbilabris 100, 101. 
barbipes 258. 
barbulata 421. 
barbutella 565. 
barbutellus 565, 566, 
510, 571. 
bardus 55, 328. 
bariolae 328. 
barrei 483. 
bartholomei 456. 
basalis 2, 5, 15, 55, 
72, 105, 145, 164, 
205, 246, 258, 299, 
339, 421, 480, 483, 
516. 
basilaris 421. 
basilinea 105. 
basimacula 587. 
basizona 226, 258. 
basizonus 55, 258. 

Register. 
batava 370. 
beccarii 576. 
beckwithella 507. 
beckwithellus 507. 
beechii 576. 
belfragei 339. 
belfragii 105, 226. 
belieri 258. 
bella 339, 386. 
bellardii 566. 
bellicosum 456. 
bellicosus 512. 
bellicornis 559. 
bellus 574. 
berenice 94. 
bergii 179. 
betsilei 164. 
beuthini 105. 
biareolata 15. 
biareolatus 15. 
Biareolina 99. 
Biastes 501. 
Biastoides 501. 
biastoides 497. 
bibalteata 226. 
bicallosa 386. 
bicallosus 55. 
biearinata 105. 
biciliata 258. 
bieiliatus 258. 
bicineta 238,259,587. 
bicinctus 55, 259. 
bicingulatus 55, 523. 
bicolor 38, 47, 50, 97, 
105, 106, 112, 138, 
139, 158, 164, 175, 
193, 195, 202, 224, 
226, 259, 299, 301, 
303, 323, 324, 325, 
339, 386, 387, 421, 
456, 474, 498, 499, 
516, 589, 590. 
bicolorata 15, 107, 
155, 195. 
bicoloratum 456. 
bicoloratus 512. 
bicoloripes 164. 
bicoloriventris 422. 
bicornis 407, 40$, 
409. 
bidens 411. 
bidentata 15, 164, 
226, 259, 319, 387, 
422, 490. 
bidentatus 259. 
bidenticulata 374. 
bidenticulatum 374. 
bidenticulatus 374. 
bifarius 553. 
bifasciata 15, 227, 
240, 259, 339, 587. 
bifasciatellus 55. 
bifasciatus 15, $1, 
259, 328. 
bifida 339. 
bifoveolatus 175. 
bifrons 315. 
bigemellus 55. 
bigibba 164. 
bihamata 259, 387. 
bihamatus 259. 
bilineata 576. 
bilineolatum 456. 
bimaculata 106, 227, 
259, 260, 291, 303, 
319, 339. 
bimaeulatus 47, 55, 
259, 512. 
bimaeculifer 260. 
bimaculifera 260. 
bimaculosus 260. 
binominata 106, 107, 
213, 227, 422. 
binominatum 470. 
binotata 227, 260, 
301, 387, 422. 
binotatus 260. 
binotulata 422. 
bipartita 107, 
260, 422, 576. 
bipartitus 260. 
bipectinatus 47. 
bipunctata 15, 16, 34, 
107, 314, 339, 576, 
587. 
bipunctatus 15, 16, 
57, 334. 
biroi 246. 
bisbimaculatus 67. 
bisbistrigatus 79. 
biseriata 319. 
bisignata 339. 
135, 
, 
bisinuatus 14. 
bispinosa 38,164,176, 
195, 340. 
bispinosus 3$. 
bistriata 543. 
bistrigosa 260. 
bistrigosus 260. 
bisulea 387, 38$. 
bisuleata 107. 
bituberculata 16,178, 
221, 422. 
bivittata 16. 
bivittatum 456. 
bivittatus 16. 
bizonata 335. 
bizonatus 512. 
blackburnii 16, 422. 
blancoburgensis 373. 
blanda 50, 227. 
blanditum 456. 
blandus 1$. 
blepharipes 313. 
bocandei 576. 
bogdanowii 260. 
bohemieus 513. 
bombiformis 205, 
221, 260, 303, 310, 
422. 
bombilans 251. 
Bombinae 503. 
bomboides 205, 260, 
261. 
Bombomelecta 313. 
Bombus 202, 302, 
325, 503, 565. 
Bombusoides 565. 
bombycina 422. 
bombyformis 303. 
bombylans 285, 298. 
bonaerensis 2, 240, 
483. 
borealis 16, 17, 261, 
340, 381, 519, 552. 
bostoniana 587. 
boyerella 107. 
braecata 183, 184, 
187, 303. 
brachycephala 17. 
brachycephalus 512. 
brachyeera 227. 
Brachynomada 373. 

