Chrysotus mediotinctus (Capellari & Amorim, 2014)
publication ID |
0005-805X |
persistent identifier |
https://treatment.plazi.org/id/350B4662-DE47-FFB9-FCB7-FAC8FDA3FDB0 |
treatment provided by |
Carolina |
scientific name |
Chrysotus mediotinctus |
status |
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The mediotinctus View in CoL -group
Diagnosis (based on males). Large-sized species of Chrysotus ( 5 mm or longer). Face and frons with parallel sides. Antennae yellow to orange, postpedicel sometimes brownish; antennal stylus apical. Thorax mostly shinning green, eventually with yellow areas (e.g., metepimere); acrostichals absent; six pairs of dorsocentrals; upper part of proepisternum, in front of anterior spiracle, bare. Wing: membrane hyaline or smoked, sometimes with a conspicuous transversal brown stripe; veins R 4+5 and M 1 subparallel and slightly moved posteriad; distal section of vein CuA shorter than crossvein dm-cu (see BECKER 1922: fig. 63; PARENT 1929: fig. 30, 1931: fig. 24, 1934: pl. 68, fig. 14; CAPELLARI & AMORIM 2010: fig. 19). Legs: mostly yellow, middle coxa (sometimes also hind coxa) and apices of tarsi brown; pulvilli small; tarsal claws present. Abdomen: usually greenish, with coppery reflections dorsally and lateral yellow spots, sometimes from tergite 1 to 6; tergite 6 with setae and bristles restricted to posterior margin ( Fig. 1-3). Hypopygium: partially hidden under tergite 6, surstyli as a single lobe, with short spine at apex (see CAPELLARI & AMORIM 2010: figs 5 and 6).
Remarks: This group includes the following three species, dealt with below, as well as C. maculatus (PARENT) (= Diaphorus maculipennis ROBINSON ; holotype in the Natural History Museum of London, examined) and C. singularis PARENT ( holotype in the SNSD, examined). Some of the diagnostic characters listed above should be regarded as apomorphies (see Discussion), in such a way that gathering these five species in a group seems justified on a reasonable hypothesis of monophyly. The group is currently known only from South America: Surinam, Peru, Bolívia, and Brazil (Pará, Amapá, Maranhão, Mato Grosso, Minas Gerais, São Paulo).
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