Chaetonerius, Hendel, 1913

Sepúlveda, Tatiana A., Souza, Diego de S., Echeverry, Angela, Marinoni, Luciane & de Carvalho, Claudio J. B., 2020, Revalidation and taxonomic revision of Teloneria Aczél (Diptera, Neriidae), with description of two new species, European Journal of Taxonomy 717, pp. 70-89 : 85

publication ID	https://doi.org/ 10.5852/ejt.2020.717.1099
publication LSID	lsid:zoobank.org:pub:82367188-7A82-4319-8BF2-A7982657C252
DOI	https://doi.org/10.5281/zenodo.4328948
persistent identifier	https://treatment.plazi.org/id/E76EB568-720A-C45A-FF2D-DF91FA9CF2C5
treatment provided by	Valdenar
scientific name	Chaetonerius
status

Treatment

Key to Chaetonerius View in CoL View at ENA , Telostylus and Teloneria , with emphasis on the identification of the species of Teloneria

1. One or two postsutural dorsocentral setae ( Figs 8B View Fig , G–H). Frontal vitta with a median longitudinal groove ( Fig. 7L View Fig , N–O). Tegument shiny, mostly yellow or partially to entirely brown ( Fig. 3 View Fig ). Abdomen homogeneously colored. Wing infuscate on distal third ( Fig. 8 View Fig I–K) ............................... 2 ̄ Four postsutural dorsocentral setae ( Fig. 8D View Fig ). Frontal vitta without median longitudinal groove ( Fig. 7M View Fig ). Tegument opaque, brown and partially yellow to entirely brown. Abdomen with one dorsomedian yellow line. Wing slightly infuscate around meeting point of veins R2 +3 and C ....................................................................................................... Chaetonerius Hendel, 1913 View in CoL

2. Presutural dorsocentral seta absent and one pair of postsutural dorsocentral setae present ( Fig. 8B View Fig ). Postocullar setae absent ( Fig. 7L View Fig ). Transverse suture complete. Antennal base with membranous extension of upper face positioned dorsally ................................................... Telostylus Bigot, 1859 View in CoL ̄ One pair of presutural and two pairs of postsutual setae present ( Fig. 8G, K View Fig ). Postocular setae welldeveloped ( Fig. 7 View Fig N–O). Transverse suture incomplete, vanishing medially on dorsal surface of scutum. Antennal base without dorsal membranous area ..........................3... Teloneria Aczél, 1954

3. Postpronotal lobe and notopleura brown to pale brown ( Fig. 3A View Fig ). Fronto-orbital plate entirely black. Head around eye brown, only yellow near gena; occiput entirely brown .. ................................................................................ Teloneria apicata (Edwards), 1919 comb. nov.

– Postpronotal lobe and notopleura pale brown to yellow ( Fig. 3D View Fig ). Fronto-orbital plate at least partially to entirely yellow ( Fig. 3C View Fig ). Head around eye mostly to entirely yellow; occiput pale brown or yellow on dorsal half .................................................................................................................... 4

4. Frontal vitta mostly black, with a yellow spot on anterior third. Anepisternum, anepimeron and katepisternum brown .. ................................................................... Teloneria bimaculata (Edwards)

– Frontal vitta pale brown or yellow and ocellar triangle black. Anepisternum, anepimeron and katepisternum partially yellow ( Fig. 4C View Fig ) .......................................................................................... 5

5. Anterior margin of frons straight to slightly convex, not projected between antennal bases. First flagellomere pear-shaped with distal half slightly twisted up ( Fig. 4A View Fig ). Scutum with median brown to black broad line from anterior margin to scutoscutellar suture, interrupted on transverse suture by a median yellow area; presutural and postsutural scutum laterally with brown longitudinal lines ( Fig. 4D View Fig ) .................................................................. Teloneria juceliae Sepúlveda & Souza sp. nov.

– Anterior margin of frons strongly convex (V-shaped) and projected between antennal bases. First flagellomere ovate ( Fig. 5A View Fig ). Scutum with pale brownish median line on presutural scutum; presutural scutum with dark brown intra-alar spot and postsutural scutum laterally without brown lines ( Fig. 5D View Fig ) ............................................................ Teloneria ladyae Sepúlveda & Souza sp. nov.