Caenohalictus Cameron

Gonzalez-Vaquero, Rocio Ana & Roig-Alsina, Arturo, 2013, Revision of the species of the bee genus Caenohalictus (Hymenoptera: Halictidae) occurring in Argentinean Patagonia, Zootaxa 3670 (4), pp. 493-515 : 495-496

publication ID

https://doi.org/ 10.11646/zootaxa.3670.4.5

publication LSID

lsid:zoobank.org:pub:44AC10F9-908D-4C05-A3E6-CDC110259612

DOI

https://doi.org/10.5281/zenodo.5688458

persistent identifier

https://treatment.plazi.org/id/038E87C3-2817-E235-FF73-F8BEFB29B33C

treatment provided by

Plazi

scientific name

Caenohalictus Cameron
status

 

Caenohalictus Cameron View in CoL

Caenohalictus Cameron 1903: 231 View in CoL . Type species: Caenohalictus trichiothalmus Cameron 1903 View in CoL , monobasic.

Caenohalictus View in CoL is defined among the genera of Caenohalictina by the following combination of characters: Body metallic dark green or blue, sometimes with a reddish tint, rarely black; compound eyes with conspicuous hairs; mesoscutum reticulate ( Fig. 1 View FIGURES 1 – 2. 1 ); dorsal surface of metapostnotum microareolate, finely striate in some species; compound eyes emarginate, inner orbits converging below; female with dark apical band of clypeus extending along the inner orbits, with very inconspicuous punctures, usually reaching the level of the antennal sockets; female with inner hind tibial spur pectinate; male with pygidial plate surrounded by a carina; male genital capsule ventrally concave, gonostylus developed into several processes, directed ventrally.

Gonçalves and Melo (2009) recovered two synapomorphies for the genus: T1 and T2 with lateral carinae present ( Fig. 2 View FIGURES 1 – 2. 1 ), also on T 3 in some species, and the male metapostnotum medially depressed. The lateral carinae, probably better described as sulci with slightly elevated margins ( Fig. 2 View FIGURES 1 – 2. 1 ), are present on T1 and T 2 in Agapostemon chapadensis View in CoL , A. nasutus View in CoL , A. tyleri View in CoL , Pseudagapostemon citricornis View in CoL and P. pampeanus View in CoL , species that were studied by Gonçalves and Melo (2009), although they reported that the lateral carinae are restricted to T 1 in these species. Gonçalves and Melo (2009) mentioned an S8 as long as wide as a synapomorphy of Caenohalictina. All the species examined herein had the S8 much broader than long, in contrast to the species of Caenohalictus View in CoL they included. In this light, a revision including all the species of the genus and further studies about the genera related to Caenohalictus View in CoL are needed to set new synapomorphies for this genus.

Rojas and Toro (2000) provided detailed descriptions for the species of Caenohalictus View in CoL from Chile, as well as descriptions of the main features of the genital capsule of the male. Despite this, the illustrations of the capsules are difficult to interpret, and some steps in the key to the species for the females are hard to follow.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Halictidae

Loc

Caenohalictus Cameron

Gonzalez-Vaquero, Rocio Ana & Roig-Alsina, Arturo 2013
2013
Loc

Caenohalictus

Cameron 1903: 231
1903
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