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Anthidium pallidiclypeum Jaycox, 1963. Pan-Pacific Ent. 39: 267, 5 figs.

8, 4. *palmarum micheneri Schwarz. Tex., Ariz. On flowers of Phacelia and

Sphaeralcea.
Anthidium palmarum micheneri Schwarz, 1957. Kans. Ent. Soc. Jour.

30: 132. , 4. palmarum palmarum Cockerell, changed status. Anthidium palmarum Cockerell. Reduced to subsp. rank (teste Schwarz,

1957, loc. cit. supra, p. 132). porterae Cockerell. Ariz. On flowers of Asclepias, Erigeron, Pentstemon,

Phacelia, and Psilostrophe. psoraleae Robertson. Kans. On flowers of Astragalus, Lobelia, Psoralea, Trifolium, and Verbena.

Genus CALLANTHIDIUM Cockerell, p. 1143 formosum (Cresson). Ariz. (Oak Creek Canyon).

Genus DIANTHIDIUM Cockerell, pp. 1143–1145 cressonii (Dalla Torre). Nev., Ariz., N. Mex. curvatum curvatum (Smith). Fla. On flowers of Aster, Chrysopsis, Helen

ium, Koellia and Psoralea. curvatum floridiense Schwarz. Raised to specific rank. curvatum xerophilum (Cockerell). Ariz. (Apache Pass). discors Timberlake. Ariz. floridiense Schwarz, changed status. On flowers of Bidens and Sabal. Dianthidium curvatum floridense Schwarz. Raised to sp. rank (teste

Mitchell, 1962, loc. cit, supra, p. 16). Change spelling from flori

dense to floridiense. heterulkei fraternum Timberlake. Tex., Nev. heterulkei heterulkei Schwarz. Utah. implicatum Timberlake. Nev., Ariz., N. Mex., Tex.; Mexico (Chihuahua).

On flowers of Cerallia and Gutierrezia. Taxonomy: Grigarick and Stange, 1964. Pan-Pacific Ent. 40: 152 (7). *marshi Grigarick and Stange. Calif. (Inyo Co.). On flowers of Eriastrum

densifolium. Dianthidium marshi Grigarick and Stange, 1964. Pan-Pacific Ent. 40:

149, figs. 1, 2, 3, 10, 11. 6, f. * parkeri Grigarick and Stange. Ariz., Tex.; Mexico (Sonora, Sinaloa, Du

rango). On flowers of Verbesina encelioides. Dianthidium parkeri Grigarick and Stange, 1964. Pan-Pacific Ent. 40:

150, figs. 4, 5, 6, 12. 7, . parvum parvum (Cresson). Nev. platyurum baculifrons Cockerell. South. Calif. (cismontane area). platyurum mohavense Timberlake. Calif. (Mojave Desert). platyurum platyurum Cockerell. Reinstate in Catalog (teste P. H. Timber

lake in litt.). Ariz., Nev., south. Calif. (Colorado Desert); Baja

California. plenum plenum Timberlake. Nev. pudicum decorum Timberlake. Change 1934 to 1943 in bibliographic citation. simile (Cresson). Minn. to Ont. and Maine, south to Ga. On flowers of

Aster. subparvum subparvum Swenk. Nev. subrufulum Timberlake. Tex.

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ulkei perterritum Cockerell. Ariz., Nebr.

Genus ANTHIDIELLUM Cockerell, p. 1146
Taxonomy: Schwarz, 1957. Kans. Ent. Soc. Jour. 30: 137 (key to spp. of

notatum complex).
notatum boreale (Robertson). On flowers of Verbena.
notatum notatum (Latreille). Mass. to Ill., south to Fla. and Miss. Visits

many flowers, almost entirely Compositae and Leguminosae. notatum robertsoni (Cockerell).

Biology: Linsley, 1962. Ent. Soc. Amer. Ann. 55: 159-160, figs. 6-7. notatum rufimaculatum Schwarz, On flowers of Rhus. perplexum (Smith). Visits many flowers, principally Compositae and Leguminosae, but a scattering also in other families.

Genus HETEROSTELIS Timberlake, p. 1146
australis australis (Cresson), changed status. N. J. to Ga. On flowers of

Helenium.
Heterostelis australis (Cresson). Reduced to subsp. rank (teste Mitchell,

1962, loc. cit. supra, p. 33).
*australis floridensis Mitchell. Fla. On flowers of Eriogonum and Rhus.
Heterostelis australis floridensis Mitchell, 1962. N. C. Agr. Expt. Sta.

Tech. Bull. 152: 33, fig. 11.4, ĝ. grossa Mitchell. Fla. (Gainesville). Heterostelis grossa Mitchell, 1962. N. C. Agr. Expt. Sta. Tech. Bull. 152: 35. f.

STELIS subgenus PROTOSTELIS Friese, p. 1147
costalis costalis Cresson, changed status. Va. and Ky., south to Fla. and Tex.

On many flowers, chiefly Compositae.
Stelis (Protostelis) costalis Cresson. Reduced to subsp. rank (teste Mitch-

ell, 1962, loc. cit. supra, p. 37).
Stelis (Protostelis) louisae Cockerell (syn. by Mitchell, 1962, loc. cit.

supra, p. 37). costalis floridana Graenicher, changed status. On flowers of Bidens and Meli

lotus. Stelis (Protostelis) floridana Graenicher. Reduced to subsp. rank (teste

Mitchell, 1962, loc. cit. supra, p. 38). floridana Graenicher. A subsp. of costalis Cresson. louisae Cockerell. Syn. of costalis costalis Cresson.

STELIS subgenus MICROSTELIS Robertson, p. 1147 birkmanni Cockerell. Transfer to Stelis subg. Chelynia Provancher, p. 1148,

as a questionable syn. of labiata (Provancher). lateralis Cresson. Maine and Ont. to N. Dak., south_to Ga. and Tex. On

many flowers, principally Compositae. Remove plena (Pro

vancher), a valid sp., from syn. plena (Provancher). Ont. (Ottawa). Stelis (Microstelis) lateralis Cresson of Catalog, in part. S. plenum not a

syn. (teste Mitchell, 1962, loc. cit. supra, p. 43).
sexmaculata Ashmead. Hosts: Hoplitis (Alcidamea) brachyodonta (Ckll.),

H. (A.) colei (Cwfd.).
*vernalis Mitchell. Pa., N. C., Mich., Minn.
Stelis (Microstelis) vernalis Mitchell, 1962. N. C. Agr. Expt. Sta. Tech.
Bull. 152: 43. 4, 6.

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STELIS subgenus PAVOSTELIS Sladen, pp. 1147–1148 *ater Mitchell. Fla. On flowers of Cirsium.

tears

Stelis (Pavostelis) ater Mitchell, 1962. N. C. Agr. Expt. Sta. Tech. Bull.

152: 39. 4. diversicolor Crawford. Tenn. On flowers of Rubus.

STELIS subgenus CHELYNIA Provancher, pp. 1148–1149

(=Chelynia subgenus Chelynia Provancher of Catalog) This taxon and the subgenera included under it in the Catalog are considered to be subgenera of Stelis (teste Mitchell, 1962, loc. cit. supra, p. 36). birkmanni Cockerell. Possibly a syn. of labiata (Provancher). foederalis Smith. N. B. to Minn., south to Ga. and Colo. On flowers of

Chrysanthemum. labiata (Provancher). Que. to Wis., south to N. C. On flowers of Ranunculus

and Rubus. Hosts: Hoplitis (Alcidamea) producta producta

(Cr.), H. (A.) pilosifrons (Cr.) and Robertsonella simplex (Cr.). ?Stelis (Microstelis) birkmanni Cockerell (syn. questionably by Mitchell,

1962, loc. cit. supra, p. 40). *michiganensis Mitchell. Mich. (Luce Co.). Stelis michiganensis Mitchell, 1962. N. C. Agr. Expt. Sta. Tech. Bull.

152: 45. . nitida Cresson. On flowers of Chrysanthemum. *semirubra reducta Snelling. Calif. (Tuolumne and Mariposa counties). On

flowers of Cryptantha. Stelis (Chelynia) semirubra reducta Snelling, 1962. Pan-Pacific Ent. 38: 227. f, g.

STELIS subgenus MELANOSTELIS Ashmead, p. 1149 rubi Cockerell. B. C.

STELIS subgenus STELIDIUM Robertson, pp. 1149-1150 trypetina (Robertson). Va. On flowers of Aster, Erigeron, Pycnanthemum,

Rudbeckia and Solidago.

Unrecognized Species of Stelis not Placed as to Subgenus *nigrita (Fabricius). "Habitat in America."

Andrena nigrita Fabricius, 1775. Systema Ent., p. 377.

Genus DIOXYS Lepeletier and Serville, pp. 1150-1151 Revision: Hurd, 1958. Calif. Univ. Pubs. Ent. 14: 275-302, 28 figs., 4

maps. aurifuscus (Titus). Colo., Calif., Oreg. Hosts: ? Anthidium sp., ? Callanthi

dium illustre (Cr.). Biology: Cockerell, 1909. Canad. Ent. 41: 334.-Hicks, 1929. Canad.

Ent. 61: 8. catalinensis Cockerell. Syn, of pomonae pomonae Cockerell. martii Cockerell. Syn. of productus subruber Cockerell. *pacificus melanogaster Hurd. Mts. of southern Calif. Dioxys pacificus melanogaster Hurd, 1958. Calif. Univ. Pubs. Ent. 14:

296. 4, . pacificus pacificus Cockerell, changed status. Calif. (except mts. of southern

Calif.), Oreg., Nev., Utah, Wyo. Dioxys pacificus Cockerell (reduced to subsp. rank, teste Hurd, 1958, loc.

cit. supra, p. 295). phaceliae Cockerell. Syn. of pomonae pomonae Cockerell. pomonae pomonae Cockerell, changed status. N. Mex., Colo., Idaho, Utah,

Ariz.,, Calif. (except deserts), Oreg. Hosts: Anthidium collectum
Huard, Megachile subexilis Ckil., Osmia nifoata Ckll.

Dioxys pomonae Cockerell (reduced to subsp. rank, teste Hurd, 1958, loc.

cit. supra, p. 283). Dioxys phaceliae Cockerell (syn. by Hurd, loc. cit. supra, p. 283).

Dioxys catalinensis Cockerell (syn. by Hurd, loc. cit. supra, p. 283). *pomonae timberlakei Hurd. Southern Calif., deserts. Dioxys pomonae timberlakei Hurd, 1958. Calif. Univ. Pubs. Ent. 14:

285. ^, 6. *productus cismontanicus Hurd. Pacific slope of Calif.; Mexico (Baja Ca

lif.). Host: Anthidium c. collectum Huard. Dioxys productus cismontanicus Hurd, 1958. Calif. Univ. Pubs. Ent. 14:

290. 4, . productus productus (Cresson), changed status. Great Basin of Calif., Nev.,

Oreg., Utah.
Dioxys producta (Cresson) of Catalog, in part (producta reduced to

subsp. rank and productus var. subruber Cockerell deleted from
syn. and made a valid subsp., teste Hurd, 1958, loc. cit. supra, p.

287). productus subruber (Cockerell), changed status. Calif. erts, Ariz., N.

Mex., western Tex. Host: ? Anthidium paroselae Ckli.
Dioxys producta (Cresson) of Catalog, in part (subruber removed from

syn. and made a valid subsp., teste Hurd, 1958, loc. cit. supra, p

289).
Dioxys martii Cockerell (syn. by Hurd, 1958, loc. cit. supra, p. 289).
Biology: Newberry, 1900. Psyche 9: 94.

Tribe MEGACHILINI
Taxonomy: Michener and Sokal, 1957. Evolution 11: 130-162, 15 figs., 4

tables (genera of Hoplitis complex).

Genus PROCHELOSTOMA Robertson, p. 1152 philadelphi (Robertson). Conn. Nests in deserted anobiid borings. Visits a

number of flowers in different families. Biology: Krombein, 1959. Ent. News 70: 135-136.

HERIADES subgenus NEOTRYPETES Robertson, p. 1152 leavitti Crawford, changed status. N. B. to Wyo., south to Fla, and Tex. On

many flowers, mainly Compositae. Heriades (Neotrypetes) leavitti crawfordi Graenicher (syn. by Mitchell,

1962, loc. cit. supra, p. 50). leavitti crawfordi Graenicher. Syn. of typical leavitti Crawford. variolosa variolosa (Cresson). Maine to B. C., south to Fla. and Tex. Visits

flowers of many families, but principally Compositae.

HERIADES subgenus PHYSOSTETHA Michener, pp. 1152-1153 carinata Cresson. Maine, Fla. On flowers of many families.

ASHMEADIELLA subgenus ASHMEADIELLA Cockerell, pp. 1153–1155 Ashmeаdiella subg. Titusella Cockerell syn. under subg. Ashmeаdiella by

Michener and Sokal, 1957, Evolution 11: 159, and component spp.

transf. aridula astragali Michener. Morphology: Snelling, 1962. Pan-Pacific Ent. 38: 229-230, fig. 1 (inter

sex). biscopula Michener. Transf. from Ashmeаdiella subg. Titusella Cockerell, p.

1155. bucconis bacconis (Say); Ga., Ill. On flowers of Brauneria, Coreopsis, He

lianthus, Solidago, Verbena and Verbesina.

cubiceps clypeata (Michener). Transf. from Ashmeаdiella subg. Titusella

Cockerell, p. 1155. cubiceps cubiceps (Cresson). Transf. from Ashmeаdiella subg. Titusella

Cockerell, p. 1155. difugita emarginatula Michener. Calif. (Kern Co.). On flowers of Clarkia. floridana (Robertson). On flowers of Lupinus. pronitens (Cockerell). Transf. from Ashmeаdiella subg. Titusella Cockerell,

p. 1155.

titusi Michener. Calif. (Sierra Nevada Mts.).

Ashmeаdiella subgenus Titusella Cockerell, p. 1155 Syn. under subg. Ashmeаdiella Cockerell, p. 1153, and component forms transferred to that subgenus.

ASHMEADIELLA subgenus AROGOCHILA Michener, pp. 1155-1156 Ashmeаdiella subg. Corythochila Michener syn. under subg: Arogochila

by Michener and Sokal, 1957. Evolution 11: 159 and component spp. transf. (Rhamphorhina, pp. 135 and 159, is a lapsus for Corythochila; prior usage was in Michener, 1939. Amer. Midland

Nat. 22: 8.) australis (Cockerell). Calif. (Stanislaus Co.). breviceps Michener. Transf. from Ashmeаdiella subg. Corythochila Michener,

p. 1156.

inyoensis Michener. Transf. from Ashmeаdiella subg. Corythochila Michener,

p. 1156.

*micheneri Snelling. Calif. (Stanislaus and Mariposa counties). On flowers

of Phacelia. Ashmeаdiella (Arogochila) micheneri Snelling, 1962. Pan-Pacific Ent.

38: 231, fig. 2. ô, f.

Ashmeаdiella subgenus Corythochila Michener, p. 1156 Syn. under Ashmeаdiella subg. Argochila Michener, p. 1155, and component forms transferred to that subgenus.

HOPLITIS subgenus FORMICAPIS Sladen, p. 1156 clypeata (Sladen). Que.

HOPLITIS subgenus ROBERTSONELLA Titus, p. 1157 gleasoni (Titus). Tex. to Ill. and N. J. On flowers of Geranium, Phacelia,

and Rubus. Robertsonella simplex simplex (Cresson) of Catalog, in part. R. gleasoni

not a syn. (teste Mitchell, 1962, loc. cit. supra, p. 65). Robertsonella simplex crataegina Cockerell. Syn. by Mitchell, 1962, loc.

cit. supra, p. 65. *micheneri Mitchell. Kans., Ga. On flowers of Amorpha. Hoplitis (Robertsonella) micheneri Mitchell, 1962. N. C. Agr. Expt. Sta,

Tech. Bull. 152: 64, fig. 25. 4, G. simplex (Cresson), changed status. Tex. to Conn. On flowers of Phacelia

and Salix. Robertsonella simplex simplex Cresson. R. gleasoni removed from syn.

and R. simplex raised to sp. rank (teste Mitchell, 1962, loc. cit.

supra, p. 66). simplex crataegina Cockerell. Syn. of gleasoni (Titus).

HOPLITIS subgenus HOPLITINA Cockerell, p. 1157 Transf. with component forms to Proteriades Titus, p. 1160, as a valid subgenus (teste Michener and Sokal, 1957. Evolution 11: 158).

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