Osoriellus opticu
publication ID |
https://doi.org/ 10.21248/contrib.entomol.64.2.231-354 |
DOI |
https://doi.org/10.5281/zenodo.5874444 |
persistent identifier |
https://treatment.plazi.org/id/E01A87D0-FF84-FF8E-4E68-FD5DFE0DFA06 |
treatment provided by |
Felipe |
scientific name |
Osoriellus opticu |
status |
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Osoriellus opticu s n. sp.
( Figs 118 View Fig A-C, 125D)
Type material: Holotype, male: Bolivia: Santa Cruz Dept, 3.7 km SSE Buena Vista, Hotel Flora y Fauna (63°33.15'W, 17°29.95'S), 400-450 m elevation, primary foest, collected by flight intercept trap, male, 3.- 9.11.2002, leg. R. Leschen, #BOL1L02-052 ( KNHM). GoogleMaps
Paratypes: Bolivia: 5 males, 1 female with same data as holotype ( KNHM, UIC) GoogleMaps ; Cochabamba, Cochabamba, 67.5 km NE Est. Biol. Valle del Sajita, Univ. de San Simon (64°47.52'W, 17°06.33'S), 300 m elevation, collected by flight intercept trap, male, 7.- 9.2.1999, leg. Genier ( KNHM) GoogleMaps ; Peru: Madre de Dios, Pentiacolla Lodge, 5.5 km NW El Mirador Trail, Alto Madre de Dios River (71°15.28'W, 12°30.10'S), 500 m elevation, collected by flight intercept trap, male, 23.- 26.10.2000, leg. R. Brooks ( KNHM) GoogleMaps .
Diagnosis: The species is characterised by the large and thick eyes. Similarly large eyes are found in O. ocularis and O. oculatus of the O.- ocularis -group and in O. orbiculatus of the remaining-species-group. The species of the O.- ocularis -group can be differentiated by the denticulate anterior edge of the clypeus. O. orbiculatus differs by the larger and deeper pronotal punctures from O. opticus .
Description: Length: 4.6 mm. Colouration: Dark brown; posterior edge of pronotum, elytra and abdomen slightly lighter brown; legs and antennae light brown.
Head: 0.53 mm long, 1.00 mm wide; eyes thick; more than four times longer than temples; sides of fore-head convergent in smooth concave curve to anterior angles of clypeus; anterior edge of clypeus slightly emarginate; setiferous punctation dense and moderately deep; on vertex, partly coriaceous; moderately wide midline and small area at base of antennae impunctate; on vertex, interstices between punctures less than half as wide as diameter of punctures; yellow setae on clypeus approximately as long as interstices between punctures; on vertex, setae distinctly longer than interstices between punctures; microsculpture weak and fine; surface with iridescent shine.
Antennae as long as head and half of pronotum combined; second antennomere oval; longer than short conical third antennomere; following antennomeres increasing in width, but all antennomeres approximately quadrate.
Pronotum: 0.92 mm long, 1.04 mm wide; widest close to anterior angles; anterior angles rectangular; sides evenly convergent to obtuse posterior angles; posterior angles rounded, but nearly rectangular; sides in front of posterior angles nearly parallel; lateral margin finer in anterior half than in posterior half; in posterior half widened; in dorsal aspect, covered close to anterior angles; setiferous punctation sparser than on head, but punctures slightly larger; on average, interstices between punctures slightly wider than diameter of punctures; in irregular row adjacent to impunctate midline, interstices partly shorter; on average, yellow setae as long as interstices between punctures; without microsculpture, but with dense micro-punctation; surface polished and shiny.
Elytra: 1.13 mm long, 1.12 mm wide; shoulders rounded; sides slightly widened posteriorly; widest in posterior third; setiferous punctation as dense and deep as on pronotum; in irregular rows; coriaceous ground-sculpture moderately deep.
Abdomen with dense setiferous punctation; narrow midline on tergites impunctate; netlike microsculpture weak; surface shiny.
Protibia: 0.62 mm long, 0.18 mm wide; 8 spines on outer edge; apical spines inserted on moderately long digits; WLR: 1.0; in posterior aspect, inner emargination with comb visible throughout its total length; posterior face sparsely covered by long yellow setae.
Aedeagus asymmetric with moderately thick and long apical lobe; apical lobe evenly narrowed to acute apex; inner edge of apical lobe with row of approximately ten sensillae.
Etymology: The specific name opticus derived from the same Latin word meaning optic and refers to the large eyes of the species.
UIC |
UIC |
KNHM |
The Educational Science Museum [=Kuwait Natural History Museum?] |
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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