Landaverde-González, Patricia; Gardner, Joel; Moo-Valle, Humberto; Quezada-Euán, José Javier G.; Ayala, Ricardo; Husemann, Martin
Lasioglossum (Dialictus) yucatanense Landaverde-González & Gardner & Moo-Valle & Quezada-Euán & Ayala & Husemann 2023, sp. nov.
Seven new species of Lasioglossum (Dialictus) Robertson, 1902 (Hymenoptera: Halictidae: Halictini) from the Yucatán Peninsula, Mexico
Landaverde-González & Gardner & Moo-Valle & Quezada-Euán & Ayala & Husemann
Landaverde-González & Gardner & Moo-Valle & Quezada-Euán & Ayala & Husemann, 2023
Fig. 1. Frontal view of the head of Lasioglossum (Dialictus) yucatanense Landaverde-González sp. nov., holotype, ♀ (UNAM). The measurements taken for the head were length (l), excluding labrum, and mandible and width (w) of the face, as well as the length of the frontal line (FL) as the distance from the end of the supraclypeal area to below the median ocellus.
Fig. 5. Line drawings of male genitalia of species of Lasioglossum (Dialictus) Robertson, 1902. A, C, E, G. Ventral view. B, D, F, H. Lateral view. A–B. L. (Dialictus) yucatanense Landaverde-González sp. nov. C–D. L. (Dialictus) paxtoni Landaverde-González sp. nov. E–F. L. (Dialictus) aureoviride Landaverde-González & Husemann sp. nov. G–H. L. (Dialictus) ameshoferi Landaverde-González sp. nov. Abreviations: G. = gonostylus; P.v. = penis valve; Gn. = gonobase; V.r.l. = ventral retrorse lobe. Drawings made by Natalia Escobedo-Kenefic.
Fig. 6. Images of tegula form and punctation in species of Lasioglossum (Dialictus) Robertson, 1902. A. L. (Dialictus) yucatanense Landaverde-González sp. nov. B. L. (Dialictus) paxtoni Landaverde- González sp. nov. C. Specimen of the Lasioglossum stictaspis species complex. D. L. (Dialictus) ameshoferi Landaverde-González sp. nov. E. L. (Dialictus) aureoviride Landaverde-González & Husemann sp. nov. F. L. (Dialictus) paralepidii Gardner sp. nov. G. L. (Dialictus) milpa Landaverde- González sp. nov. H. L. (Dialictus) nanotegula Landaverde-González & Husemann sp. nov.
Fig. 30. Mesepisternum. A. Lasioglossum (Dialictus) paxtoni Landaverde-González sp. nov., ♀, shiny and distinctly punctate. B. L. (D.) yucatanense Landaverde-González sp. nov., ♀, imbricate-rugulose and indistinctly punctate in dorsal half (arrow).
Fig. 36. Metapostnotum. A. L. (D.) yucatanense sp. nov. male, dull with fine rugae. B. L. (D.) paralepidii sp. nov. male, shiny with strong rugae.
Jose J. G. Quezada-Euan & Humberto Moo-Valle