taxonID	type	description	language	source
2574B1383443FFB4FE063F741576F88E.taxon	materials_examined	TYPE SPECIES: Stenotritus smaragdinus Smith, 1868.	en	Engel, Michael S. (2019): Notes on the classification of Ctenocolletes (Hymenoptera: Stenotritidae). Journal of Melittology 2019 (92): 1-6, DOI: 10.17161/jom.v0i92.12073, URL: http://dx.doi.org/10.17161/jom.v0i92.12073
2574B1383443FFB4FE063F741576F88E.taxon	diagnosis	DIAGNOSIS: The subgenus can be most readily distinguished in females by the absence of arolia, although this is shared, likely synapomorphically, with Tigriocolletes (vide infra) from which it can be distinguished by the absence of yellow, enamel-like integumental bands (such bands are present in Tigriocolletes). Arolia are present in females of both Ctenocolletes s. str. and Houstonapis. In males, the compound eyes do not converge dorsally (also shared with Tigriocolletes), while in Ctenocolletes s. str. and Houstonapis the compound eyes slightly converge dorsally. Additional comparative features include the absence of white metasomal setal bands (absent in Houstonapis, present in Ctenocolletes s. str.), black or metallic green metasomal integument [black in C. ordensis Michener, metallic green in C. smaragdinus (Smith)], presence of a pygidial plate in males (absent in Houstonapis), metasoma lacking acarinaria (present in some Ctenocolletes s. str.), and the presence of a narrow to narrowly triangular, medioapical process on the male eighth sternum.	en	Engel, Michael S. (2019): Notes on the classification of Ctenocolletes (Hymenoptera: Stenotritidae). Journal of Melittology 2019 (92): 1-6, DOI: 10.17161/jom.v0i92.12073, URL: http://dx.doi.org/10.17161/jom.v0i92.12073
2574B1383443FFB4FE063F741576F88E.taxon	etymology	ETYMOLOGY: The new subgeneric name is a combination of Ctenocolletes [itself composed of ktenós (Κτενός), the genitive singular of, “ comb ”, and kollitís (ΚΟλλητής, meaning, “ gluer ” or “ one who glues ” – derived from kólla (Κόλλα), “ glue ”] and ópsis (ὄψῐς, meaning “ view ” or “ appearance ”). The gender of the name is feminine. INCLUDED SPECIES: Aside from the type species, the subgenus includes C. ordensis Michener.	en	Engel, Michael S. (2019): Notes on the classification of Ctenocolletes (Hymenoptera: Stenotritidae). Journal of Melittology 2019 (92): 1-6, DOI: 10.17161/jom.v0i92.12073, URL: http://dx.doi.org/10.17161/jom.v0i92.12073
2574B1383440FFB7FE743F2E152FF944.taxon	materials_examined	TYPE SPECIES: Ctenocolletes tigris Houston, 1983 b.	en	Engel, Michael S. (2019): Notes on the classification of Ctenocolletes (Hymenoptera: Stenotritidae). Journal of Melittology 2019 (92): 1-6, DOI: 10.17161/jom.v0i92.12073, URL: http://dx.doi.org/10.17161/jom.v0i92.12073
2574B1383440FFB7FE743F2E152FF944.taxon	diagnosis	DIAGNOSIS: This subgenus may be immediately recognized by the presence of wide, yellow, enamel-like bands on an otherwise black metasoma and a whitish to pale yellow clypeus, such areas of maculation absent in all other Ctenocolletes. As in Ctenocolletopsis, females lack arolia, the compound eyes of the male do not converge dorsally, and the male possesses a pygidial plate. The medioapical process of the male eighth sternum is broadly triangular, closest in form to the condition in Ctenocolletopsis where the process is either narrow or narrowly triangular.	en	Engel, Michael S. (2019): Notes on the classification of Ctenocolletes (Hymenoptera: Stenotritidae). Journal of Melittology 2019 (92): 1-6, DOI: 10.17161/jom.v0i92.12073, URL: http://dx.doi.org/10.17161/jom.v0i92.12073
2574B1383440FFB7FE743F2E152FF944.taxon	etymology	ETYMOLOGY: The new subgeneric name is a combination of tígris (τῐ ́ γρῐς; genitive, tígreōs, τῐ ́ γρεως, meaning, “ tiger ”) and kollitís (ΚΟλλητής, meaning, “ gluer ” or “ one who glues ”), and is a reference to the distinctive wide, yellow bands of the metasoma that contrast against the otherwise black integument. The gender of the name is masculine. INCLUDED SPECIES: The subgenus presently includes only the type species, known from only a few localities in the western portion of the Great Victoria Desert, in Western Australia.	en	Engel, Michael S. (2019): Notes on the classification of Ctenocolletes (Hymenoptera: Stenotritidae). Journal of Melittology 2019 (92): 1-6, DOI: 10.17161/jom.v0i92.12073, URL: http://dx.doi.org/10.17161/jom.v0i92.12073
2574B1383441FFB6FE7E38C41755F93E.taxon	materials_examined	TYPE SPECIES: Ctenocolletes fulvescens Houston, 1983 a.	en	Engel, Michael S. (2019): Notes on the classification of Ctenocolletes (Hymenoptera: Stenotritidae). Journal of Melittology 2019 (92): 1-6, DOI: 10.17161/jom.v0i92.12073, URL: http://dx.doi.org/10.17161/jom.v0i92.12073
2574B1383441FFB6FE7E38C41755F93E.taxon	diagnosis	DIAGNOSIS: This is subgenus is one of the more distinctive owing to the unique absence of a pygidial plate in males, a feature shared with Stenotritus. Indeed, it may be warranted to eventually recognize the subgenus at generic rank alongside other stenotritids. Like Ctenocolletes proper, females possess arolia and the male compound eyes converge slightly above. The metasomal integument is a generally orange color, lacking the yellow bands of Tigriocolletes, as well as white setal bands (present in Ctenocolletes s. str.) and acarinaria (present only in some Ctenocolletes s. str.). The male eighth sternum uniquely possesses a broad, deep medioapical concavity, bordered laterally by short processes (in Ctenocolletes s. str. the sternum has an exceedingly short, broadly transverse medial process with its apical margin either bluntly truncate, indented, or weakly trilobed).	en	Engel, Michael S. (2019): Notes on the classification of Ctenocolletes (Hymenoptera: Stenotritidae). Journal of Melittology 2019 (92): 1-6, DOI: 10.17161/jom.v0i92.12073, URL: http://dx.doi.org/10.17161/jom.v0i92.12073
2574B1383441FFB6FE7E38C41755F93E.taxon	etymology	ETYMOLOGY: The new subgeneric name honors Terry F. Houston, one of the great statesmen of Australian melitology and who provided modern revisions of Ctenocolletes (Houston, 1983 a, 1983 b, 1985) and our most detailed accounts of stenotritid biology (Houston, 1975, 1984, 1987 a, 1987 b; Houston & Thorp, 1984). His recent guide to the bees of Australia is an indispensable resource for the continent (Houston, 2018). The name is a combination of his surname with apis (Latin, meaning, “ bee ”). The gender of the name is feminine. INCLUDED SPECIES: The subgenus presently includes only the type species, known from a few localities in southern Western Australia and extreme southwestern South Australia right along the border with Western Australia.	en	Engel, Michael S. (2019): Notes on the classification of Ctenocolletes (Hymenoptera: Stenotritidae). Journal of Melittology 2019 (92): 1-6, DOI: 10.17161/jom.v0i92.12073, URL: http://dx.doi.org/10.17161/jom.v0i92.12073
