maurus Cresson, [Panurgus] (Halictoides) 
INeohalictoides: 2224 stte ts a2 See 
mazillosa Linnaeus, [Apis] Chelostoma_-_-__-- 
medioruta Cockerell, [Trigona] Oxytrigona___ 
megachiloides Holmberg, Anthodioctes_-_-____- 
melanantha Linsley, Hesperonomada____----- 
melanochroa Cockerell, [Andrena] Micran- 
melanorantha Holmberg, Chacoana__________- 
melanura Cockerell, [Palaeorhiza] Heteror- 
DIS Eis a Se ce Sa Pes FN War Re 
melittoides Friese, [Andrena] Melittoides_____ 
melittoides Viereck, Coquillettapis______-__-_- 
melittoides Viereck, Dolichochile__._-_-_____- 
mellea Cockerell, Microdontura_-___---------- 
mieilifera; Linnaeus; Apiss S22. ee 
[Atpis]PAtpiartus:: 226 2222 2] 
MELLILCAMMAbTICIUSH ApS eae See Lee ees | 
[Atpis]-Apiarus:-—2--_.-.-. 
mellona Heer, Anthophorites___.-_____-_-_--- 
mendax Gerstaecker, [Bombus] Mendaci- 
mengei Motschulsky, Bombusoides_____-_--_- 
merescens Cockerell, [Halictus] Pachyhalictus. 
metallica Strand, Rivalisia__.-._._--.--.-_-.- 
metallicum F. Smith, Mydroesoma__-_--_------- 
metallicum F. Smith, Temnosoma__--_-_--_---- 
metallicus F. Smith, Dasycolletes___________- 
inexicanus Radoszkowski, Epeicharis____---_- 
[Epeicharis] _ Fio- 
renbinige | 24222 
micans Lepeletier, [Xylocopa] Schénherria___ 
micans Strand, Prosopalictus_______...-_--_-- 
micrelephas F. Smith, Pachymelus___________ 
mimus Cockerell, Phenacolletes_______-_-___- 
mimus Cockerell, Polybiapis__-...--_-------- 
minima Cockerell, Euryglossella______-___---- 
minimus Robertson, [Triepeolus] Argyrose- 
minuta Lepeletier, Dufourea___-______----_-_- 
minutissima Rossi, [Apis] Nomioides__-_------ 
minutula Kirby, [Melitta] (Andrena) Andre- 
minutus Moesary, [Phiarus] Parammoba- 
CO CS aan ag ae a EEE 2 ae 0d aos 
mirabilis Cockerell, Glyptapis____---------_-- 
mirabilis Perkins, Neopasiphae_____-------_-- 
mirabilis Perkins, Pachyprosopis_------------ 
mirabilis F. Smith, [Tetralonia] Trichocerapis_ 
mitimia Cockerell, [Megachile] Creightonella_ 
mitis Thompson, [Osmia] Acanthosmia___--_- 
modesta Cresson, [Nomada] Micronomada__-.- 
modesta F. Smith, [Andrena] Austrandrena__ 
mojavensis Linsley and Michene, Hexepeolus_ 
montana Cresson, [Osmia] Cephalosmia_____- 
montana Cresson, [Stelis] Pavostelis_________- 
montana Mocsary, Nomadita-_--------------- 
montandoni Gribodo, [Coelioxys] Paracoe- 
montivaga Cresson, [Megachile] Cyphopyga__ 
montivaga Morawitz [Osmia] Acanthosmia___ 
morio Brullé, [Andrena] Melandrena___-_____- 
morsus Cockerell, Goniocolletes_____________- 
mosquito F. Smith, [Trigona] Plebeia_______- 
469206—43——7 
INDEX 
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575 
537 
581 
526 
573 
536 
547 
578 
525 
mucida Cresson, [Melecta] Brachymelecta____ 
mucidus Gerstaecker, [Bombus] Mucidobom- 
muelleri Cockerell, [Augochlora] Odonto- 
Ghloras: cs. este eae ee 
muelleri Friese, [Tetrapedia] Chalepogenus___ 
[Tetrapedia] Desmotetrape- 
multiplex Vachal, [Halictus] (Augochlora) 
Meétrachloras=cees-Js-—_ 4b 2 2s ee 
muoti Vachal, [Dufourea] Trilia__.___________ 
muraria Fabricius, [Xylocopa] Chalicodoma_- 
|Xylocopa] Megachile____. 
muraria Retzius, [Apis] Chalicodoma________- 
[Apis] Megachile_.__._____. 
murina Cockerell, [Emphoropsis] Melitur- 
PODSIS =. 54 haa ee Se aS a 
muscaria Fabricius, [Apis] (Centris) Lestis__- 
muscorum Linnaeus, [Apis] Chromobombus_ 
nasalis Westwood, |Xylocopa] Biluna____-___- 
nasicornis Friese, [Megachile] Amegachile___- 
nasoni Robertson, [Andrena] Platandrena____ 
nasutum Latreille, [Anthidium] Stelidomor- 
nasutus F. Smith, [Colletes] Rhinocolletes____ 
natalensis Friese, Crinoglossa__._.----__------ 
neavei Bliithgen, Eupetersia______..__.___-_- 
neglecta Dours, Biareolina________..-____-__- 
neliana Cockerell, [Rediviva] Notomelitta__-_- 
neotropica Friese, Bicolletes__...____._-_____- 
nesoprosopoides Bridwell, [Hylaeus] Nesy- 
laetishe oat es lh aor) 4 ae 
nevadensis Cresson, [Bombus] (Bremus) 
Nevadensibom bust ete Be Se es 
niger Nylander, Panurginus_.__..--...-_.-..- 
nigerrimus Bischoff, Pasitomachtes__________- 
nigra Linnaeus, [Formica] Lasius_______.-_--- 
nigra F, Smith, [Euryglossa] Euryglossi- 
nigriceps Kirby, [Melitta] (Andrena) Cnemi- 
dandrena- S53 asia ee eee eee 
nigricornis Nylander, [Heriades] Gyrodroma - 
nigrifrons Cresson, [Melissodes] (Diadasia) 
Coquillettapisssss2s-2 = es ae 
nigromarginatus Spinola, [Halictus] Pseu- 
dauzochloropsiss.400---— oe eee 
nitida Fourcroy, [Apis] Andrena___----------- 
nitida Kirby [Melitta] Andrena___-_----------- 
nitida Linsley and Michener, Paranomada_-- 
nitida Perty, Chrysantheda_-__-------------=--- 
[Chrysantheda] Caliendra_---.-- 
nitidiuscula Schenck, [Andrena] Notandrena_ 
nitidiventris F. Smith, [Trigona] Lepidotri- 
nodicornis F. Smith, Cyathocera__----------- 
nomadoides Spinola, [Camptopoeum] Spino- 
Hielligs eae ke ee SS ee Ss 
novaeangliae Viereck, |Perdita] Alloperdita_-- 
nymphae Skorikov, [Bombus] Exilobombus_- 
oberti Morawitz, [Bombus] Obertobombus-_-- 
oberti Reinig, Obertobombus------------------ 
obliterata Cresson, [Nomada] Heminomada_-- 
615 
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588. 
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551 
530 
579 
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576 
577 
542 
582 
586 
563. 
551 
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556 
540 
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584 
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