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laboriosa laboriosa (Fabricius), new status. New England states to Ill.,

south to Fla. and Miss. On flowers of Cercis, Cirsium, Dicentra,

Lupinus, Malus, Melilotus, Prunus, Vaccinium, and Vicia. Psithyrus (Laboriopsithyrus) laboriosus (Fabricius) of Catalog, in part.

P. laboriosus transf. to Emphoropsis, p. 1239 (teste Mitchell, Emphoropsis floridana floridana (Smith). Syn. by Mitchell, 1962, loc. cit.

supra, p. 332. miserabilis (Cresson). Oreg. Stores pollen of Lupinus, Convolvulus and

Abronia.
Taxonomy: Torchio and Stephen, 1961. Ent. Soc. Amer. Ann. 54:

683-687, 7 figs. (larva and pupa). Biology: Stephen and Torchio, 1961. Ent. Soc. Amer. Ann. 54: 687-692,

2 figs. murihirta Cockerell. B. C.

Genus HEMISIA Klug, pp. 1240–1241 lanosa lanosa Cresson. Okla., Fla. versicolor (Fabricius). On flowers of Borrichia, Byrsonima, Carymbola, Eu

genia, Ocimum, Securidaca and Thryallis.

MELECTA subgenus MELECTA Latreille, p. 1242 pacifica atlantica Linsley. N. J. to Ga., west to Kans. and Ala. On flowers of

Fragaria, Lithospermum and Pentstemon. Host: ? Anthophora

(A.) u. ursina Cr.

XEROMELECTA subgenus MELECTOMORPHA Linsley, Sup. 1, p. 258, p. 1243 californica (Cresson). Ill. Host: Anthophora occidentalis Cr. Biology: Hobbs, Nummi and Virostek, 1961. Canad. Ent. 93: 146.—Lins

ley, 1962. Ent. Soc. Amer. Ann. 55: 162-163, fig. 8. interrupta (Cresson). Ariz. and Colo. east to Minn., Wis. and Ill. On flowers of Pycnanthemum. Host: Anthophora (A.) abrupta Say.

Genus ERICROCIS Cresson, p. 1244 lata (Cresson). Fla. to southern Calif.

CERATINA subgenus CERATINULA Moure, Sup. 1, p. 259 cockerelli H. S. Smith. Ga. On flowers of Bidens, Erigeron, Euphorbia, and

Polygala.

CERATINA subgenus ZADONTOMERUS Ashmead, pp. 1244-1245 calcarata Robertson. Visits flowers of many families. Nests in borings in

sumac pith. Biology: Krombein, 1960. Ent. News 71: 68. dupla dupla Say, changed status. Visits a great many flowers in various

families. Ceratina (Zadontomerus) dupla Say. Reduced to subsp. rank (teste Mit

chell, 1962, loc. cit. supra, p. 503). *dupla floridana Mitchell. N. C. to Fla., coastal. Visits a number of flowers. Ceratina dupla floridana Mitchell, 1962. N. C. Agr. Expt. Sta. Tech.

Bull. 152: 505. , f. metallica H. S. Smith. N. Y. On flowers of Asclepias, Chrysanthemum, Fra

garia, Geranium, Helianthus, Oenothera, Prunus, Rubus, Senecio

and Vaccinium. Nests in borings in sumac pith. Biology: Krombein, 1960. Ent. News 71: 68.

Tribe XYLOCOPINI
Revision: Hurd and Moure, 1963. Univ. Calif. Pubs. Ent. 29: 1-365, 244

figs. (reclassification of genera and subgenera of world).

Genus XYLOCOPA Latreille, pp. 1245-1246 * Xylocopa subg. Stenoxylocopa Hurd and Moure, 1960. Ent. Soc. Amer.

Ann. 53: 809.

Type: Xylocopa artifex Smith. Orig. desig.
Revision: Hurd, 1961. Amer. Ent. Soc. Trans. 87: 247-257, 2 pls. (subg.

Xylocopoides Michener). artifex Smith. Nests in dead bamboo and other hollow stems. Transfer from

(Neoxylocopa) to (Stenoxylocopa). Taxonomy and Biology: Hurd and Moure, 1960. Ent. Soc. Amer. Ann.

53: 809. brasilianorum varipuncta Patton. Nests in rotting wood. Delete Hawaii from

distribution. Biology: Hurd, 1958. Ent. Soc. Amer. Ann. 51: 369, fig. 1. californica arizonensis Cresson. Nests in structural redwood; also in yucca

and agave.

Biology: Hurd, 1958, loc. cit. supra, pp. 369-371. micans Lepeletier. Va. Visits a number of flowers. Nests in_sound, dead

privet. Remove ? in front of nasuta citation, add Preocc. after

nasuta citation, and add N. name after vidua citation. Biology: Hurd, 1958, loc. cit. supra, p. 373, fig. 4. tabaniformis androleuca Michener. Nests in structural Douglas fir wood.

Biology: Hurd, 1958, loc. cit. supra, p. 373. *virginica krombeini Hurd. Southern Fla. (Xylocopoides) Xylocopa (Xylocopoides) virginica krombeini Hurd, 1961. Amer. Ent.

Soc. Trans. 87: 251. ô, f. virginica virginica (Linnaeus). Visits a number of flowers. Nests in dead,

sound wood of many trees, including structural timber. Biology: Hurd, 1958, loc. cit. supra, pp. 373-374, fig. 5.–Balduf, 1962.

Ent. Soc. Amer. Ann. 55: 263-271, 3 figs.—Sabrosky, 1962. Ent.

Soc. Wash. Proc. 64: 184 (mating behavior).
Morphology: Milliron, 1958. Brooklyn Ent. Soc. Bull. 53: 66-68 (gynan-

dromorph).

Tribe BOMBINI

Taxonomy: Stephen, 1957. Oreg. Agr. Expt. Sta. Tech. Bul. 40: 1-163,

31 figs., 18 maps (revision of western spp.).—Milliron, 1961. Kans. Ent. Soc. Jour. 34: 49-61 (generic reclassification);Medler, 1962. Ent. Soc. Amer. Ann. 55: 212-218, 1 fig., 4 tables (morphometric studies).—Medler and Carney, 1963. Wis. Agr. Expt. Sta. Res. Bull. 240: 1-47 (Wisconsin spp.).—Hazeltine and

Chandler, 1964. Kans. Ent. Soc. Jour. 37: 77-87, 6 pls. (queens). Biology: Medler, 1962. Canad. Ent. 94: 825-833, 1'fig., 3 tables (egg

development and absorption).-Hobbs, 1964. Canad. Ent. 96: 115-116 (brood-rearing behavior).

Section Boopobombus Frison, p. 1247 Delete this sectional heading; the component groups comprise subgenera belonging to two different genera (teste Milliron, 1961, loc. cit. supra, p. 53).

BOMBUS subgenus FRATERNOBOMBUS Skorikov, p. 1247 Transf. with component species to Pyrobombus subg. Cullumanobombus Vogt.

BOMBUS subgenus BOMBIAS Robertson, p. 1247
Transf. with component species to Megabombus subg. Bombias Robert-

son.

BOMBUS subgenus SEPARATOBOMBUS Frison, p. 1248 Transf. with component species to Pyrobombus subg. Cullumanobombus Vogt.

BOMBUS subgenus CROTCHIIBOMBUS Franklin, Sup. 1, p. 260 Transf. with included species to Pyrobombus subg. Cullumanobombus Vogt.

Section Odontobombus Krueger, p. 1249 Delete this sectional heading; it is equivalent to Megabombus subg. Megabombus Dalla Torre (teste Milliron, 1961, loc. cit. supra, p. 53).

BOMBUS subgenus SUBTERRANEOBOMBUS Vogt, p. 1249 Transf. with included species to Megabombus subg. Megabombus Dalla Torre.

BOMBUS subgenus FERVIDOBOMBUS Skorikov, p. 1249 Transf. with component species to Megabombus subg. Megabombus Dalla Torre.

Section Anodontobombus Krueger, p. 1249 Delete this sectional heading: it is equivalent to Pyrobombus subg. Pyrobombus Dalla Torre (teste Milliron, 1961, loc. cit. supra, p. 53).

BOMBUS subgenus ALPINOBOMBUS Skorikov, pp. 1253–1254 Transf. with included species to Megabombus subg. Megabombus Dalla Torre.

Genus BOMBUS Latreille

(=Bombus subg. Bombus Latreille, p. 1250) affinis Cresson. Bombus (Bombus )affinis var. novae-angliae Bequaert. Syn. by Mitchell,

1962, loc. cit. supra, p. 518. affinis var. novae-angliae Bequaert. Syn. of affinis Cresson. occidentalis nigroscutatus Franklin. Coastal north. Calif. occidentalis occidentalis Greene. Western U. S. and Canada except coastal

north. Calif. Bombus occidentalis var. proximus Cresson (syn. by Stephen, 1957.

Oreg. Agr. Expt. Sta. Tech. Bul. 40: 72). occidentalis var. proximus Cresson. Syn. of occidentalis occidentalis Greene.

* Genus MEGABOMBUS Dalla Torre MEGABOMBUS subgenus BOMBIAS Robertson

l=Bombus subg. Bombias Robertson, p. 1247) auricomus (Robertson). A subsp. of nevadensis Cresson. nevadensis auricomus (Robertson), changed status. Bombus (Bombias) auricomus (Robertson). Reduced to subsp. rank

(teste Mitchell, 1962, loc cit. supra, p. 520).

MEGABOMBUS subgenus MEGABOMBUS Dalla Torre *Megabombus Dalla Torre, 1880. Der Naturhist. 2: 40.

Type: (Bombus ligusticus Spinola) Apis argillacea Scopoli.

By monotypy. Bombus subg. Subterraneobombus Vogt (syn by Milliron, 1961, loc. cit.

supra, p. 56). Bombus subg. Fervidobombus Skorikov (syn. by Milliron, 1961, loc. cit.

supra, p. 56). Bombus subg. Alpinobombus Skorikov (syn. by Milliron, 1961, loc. cit.

supra, p. 56).

p. 1254.

balteatus (Dahlbom). Calif.

Biology: Hobbs, 1964. Canad. Ent. 96: 1465-1470, 6 figs. americanorum (Fabricius). Syn. of pennsylvanicus (Degeer). pennsylvanicus (Degeer). Transf. from Unplaced Species in Genus Bombus, Bombus (Ferdidobombus) americanorum (Fabricius). Syn. by Mitchell,

1962, loc. cit. supra, p. 524. sonorus (Say), changed status. Bombus sonorus sonorus Say. Raised to sp. rank (teste Stephen, 1957,

loc. cit. supra, p. 40). Bombus sonorus flavodorsalis Franklin (syn. by Stephen, 1957, loc. cit.

supra, p. 40). sonorus flavodorsalis (Franklin). Syn, of sonorus (Say).

Genus PYROBOMBUS Dalla Torre

PYROBOMBUS subgenus CULLUMANOBOMBUS Vogt
Bombus subg. Fraternobombus Skorikov (syn. by Milliron, 1961, loc. cit.

supra, p. 57).
Bombus subg. Senaratobombus Frison (syn. by Milliron, 1961, loc. cit.

supra, p. 57). Bombus subg: Crotchiibombus Franklin (syn. by Milliron, 1961, loc. cit.

supra, p. 57). crotchii crotchii (Cresson). Bombus crotchii var. nigricaudus (Frison) (syn. by Stephen, 1957, loc.

cit. supra, p. 57). crotchii var. nigricaudus (Frison). Syn. of crotchii crotchii Cresson. griseocollis (Degeer). Bombus (Separatobombus) griseocollis var. mormonorum Franklin

(syn. by Stephen, 1957, loc. cit. supra, p. 50), Bombus (Separatobombus) griseocollis var. nero (Bequaert and Plath).

Syn. by Mitchell, 1962, loc. cit. supra, p. 527. griseocollis var. mormonorum (Franklin). Syn. of griseocollis (Degeer). griseocollis var. nero (Bequaert and Plath). Syn. of griseocollis (Degeer). morrisoni var. umbrosus Friese. Change Canada to Colo. rufocinctus (Cresson). Bombus rufocinctus var. albertensis Cockerell (syn. by Stephen, 1957,

loc. cit. supra, p. 62). Bombus rufocinctus var. iridis Cockerell and Porter (syn. by Stephen,

1957, loc. cit. supra, p. 62). Bombus rufocinctus var. prunellae Cockerell and Porter (syn. by Ste

phen, 1957, loc. cit. supra, p. 62). rufocinctus var. albertensis (Cockerell). Syn. of rufocinctus (Cresson). rufocinctus var. iridis (Cockerell and Porter). Syn. of rufocinctus (Cresson). rufocinctus var. prunellae (Cockerell and Porter). Syn. of rufocinctus (Cres

son).

PYROBOMBUS subgenus PYROBOMBUS Dalla Torre

(=Bombus subg. Pratobombus Vogt, pp. 1250–1253) bifarius bifarius (Cresson), changed status. Bombus bifarius Cresson. Reduced to subsp. rank (teste Stephen, 1957,

loc. cit, supra, p. 142). Bombus bifarius var. kenoyeri Cockerell (syn. by Stephen, 1957, loc. cit.

supra, p. 142). Bombus bifarius var. vancouverensis Cresson (syn. by Stephen, 1957,

loc. cit. supra, p. 142). Bombus edwardsii var. fuscifrons Swenk (syn. by Stephen, loc. cit. supra,

p. 142).

bifarius nearcticus (Handlirsch), changed status. Bombus bifarius var. nearcticus Handlirsch. Raised to subsp. rank (teste

Stephen, 1957, loc. cit. supra, p. 145). bifarius var. kenoyeri (Cockerell). Syn. of bifarius bifarius (Cresson). bifarius var. nearcticus (Handlirsch). Raised to subsp. rank. bifarius var. vancouverensis (Cresson). Syn. of bifarius bifarius (Cresson). caliginosus (Frison). Bombus caliginosus var, tardus (Frison) (syn. by Stephen, 1957, loc. cit.

supra, p. 100). caliginosus var. tardus (Frison). Syn. of caliginosus (Frison). centralis (Cresson). Bombus centralis var. fucatus (Frison) (syn. by Stephen, 1957, loc. cit.

supra, p. 95). Bombus centralis var, monardae Cockerell and Porter (syn. by Stephen,

1957, loc. cit. supra, p. 95). Bombus centralis var. stolidus (Frison) (syn. by Stephen, 1957, loc. cit.

supra, p. 95). centralis var. fucatus (Frison). Syn. of centralis (Cresson). centralis var. monardae (Cockerell and Porter). Syn. of centralis (Cresson). centralis var. stolidus (Frison). Syn. of centralis (Cresson). edwardsii var. fuscifrons (Swenk). Syn. of bifarius bifarius (Cresson). edwardsii var. russulus (Frison). Syn. of mixtus (Cresson). flavifrons dimidiatus (Ashmead), changed status. Calif. to south. B. C. Bombus flavifrons var. dimidiatus Ashmead. Raised to subsp. rank

(teste Stephen, 1957, loc. cit. supra, p. 92). Bombus flavifrons var. ambiguus Franklin (syn. by Stephen, 1957, loc.

cit. supra, p. 92). flavifrons flavifrons (Cresson), changed status. Bombus flavifrons Cresson. Reduced to subsp. rank (teste Stephen, 1957,

loc. cit. supra, p. 88). Taxonomy: Milliron, 1962. Brooklyn Ent. Soc. Bul. 57: 45-46 (gynan

dromorph). flavifrons var. ambiguus (Franklin). Syn. of flavifrons dimidiatus (Ash

mead). flavifrons var. dimidiatus (Ashmead). Raised to subsp. rank. flavifrons var. vandykei (Frison). Raised to sp. rank. frigidus (Smith). Bombus frigidus var. couperi Cresson (syn. by Stephen, 1957, loc. cit.

supra, p. 124). frigidus var. couperi (Cresson). Syn. of frigidus (Smith). frigidus var. sandersoni Franklin. Raised to sp. rank. huntii (Greene). Bombus huntii var. rufosuffusus Cockerell (syn. by Stephen, 1957, loc.

cit, supra, p. 135). Biology: Medler, 1959. Ent. News 70: 179-182. huntii var. rufosu ffusus (Cockerell). Syn of huntii (Greene). impatiens Cresson. Bombus impatiens var, deayi Chandler. Syn. by Mitchell, 1962, loc. cit.

supra, p. 532. impatiens var. deayi Chandler. Syn. of impatiens Cresson. melanopygus (Nylander). Bombus melanopygus var. washingtonensis (Frison) (syn. by Stephen,

1957, loc. cit. supra, p. 132).

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