Chariessa dichroa (LeConte), 1860
publication ID |
https://doi.org/ 10.5281/zenodo.5169146 |
publication LSID |
lsid:zoobank.org:pub:FD590242-877C-4C5B-B5E3-628F1A9A1AA5 |
persistent identifier |
https://treatment.plazi.org/id/3F158625-E703-FFC6-FF5C-B5D5FA2F510C |
treatment provided by |
Felipe |
scientific name |
Chariessa dichroa (LeConte), 1860 |
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Chariessa dichroa (LeConte), 1860 .
Figures 10, 11 View Figures 1-18 , 27 View Figures 21-29 , 54 View Figures 53-56 , 58 View Figures 57-62 , 67 View Figure 67 .
Enoplium dichroum LeConte, 1860: 48 . Holotype.
Gender. Type locality: United States of America,
California, Sacramento (MCZC). Corporaal, 1950:
276. Opitz, 2014: 25.
Diagnosis. Specimens of this species are distin-
guished from those of the superficially similar
Chariessa elegans by body shape, shape of the
antennal capitulum, and coloration of the legs. In
C. dichroa specimens the body is oblong-slender,
the antennal capitulum is less-developed (compare
Fig. 7, 10 View Figures 1-18 ), and the legs are black. In C. elegans
the body shape is oblong-suboval, the antennal
capitulum is well-developed, and the femora and
tibiae are red.
Redescription. Size: Length 11.0 mm; width 4.0 Figures 36-37. Morphological structures of Chariessa mm. Form: As in Fig. 54 View Figures 53-56 . Color: Mouthparts pilosa . 36) Protarsus. 37) Protibia.
bicolorous, maxillary and labial palpomeres dark
brown, remainder red/yellow, mandibles and labrum brown; antennae and legs black; cranium, prothorax, pterothorax, and abdomen red/yellow; mesoscutellum red/yellow; elytra black, with a bluish luster. Head: Funicular antennomeres progressively shorter and wider towards capitulum, in males capitulum longer than combined length of funicular antennomeres, capitular antennomeres 9 and 10 with short collateral branch ( Fig. 10, 11 View Figures 1-18 ), antennomere 11 oblong, subacuminate; cranium vested with long black setae, frons wider than width of eye (EW/FW 13/25); eyes small. Thorax: Pronotum ( Fig. 27 View Figures 21-29 ) transverse (PW/PL 70/65), arch prominent, side margins with slight tubercle, disc vested with long black setae; elytral asetiferous punctation very small, profusely distributed throughout disc, latter densely vested with black setae (EL/EW 195/55); protibial anterior margin spinous. Abdomen: Pygidium transverse / scutiform; aedeagus ( Fig. 58 View Figures 57-62 ) poorly sclerotized ventrally; phallobasic lobes poorly developed, slightly fimbriate, phallobasic rod bifid distally, phallobasic apodeme explanate at extremity; phallus with subapical sclerotization, phallic apex acuminate.
Variation. Size: Length 6.5-12.0 mm; width 2.8-4.5 mm.
Natural history. Specimens emerged from the wood of black oak [ Quercus kelloggii Newb. (Fagaceae) ], from the wood of blue oak [ Quercus douglasii Hook & Arn. (Fagaceae) ], and of the wood of the Oregon white oak [ Quercus garryana Douglas ex Hook. (Fagaseae) ]. A specimen was collected on a tree species of Libocedrus Endl. (Cupressaceae) . Some specimens were captured in a Malaise trap set in a small open meadow in oak woodland. These beetles were taken at altitudes ranging from 263 to 762 m.
Distribution ( Fig. 67 View Figure 67 ). I examined 100 specimens from: UNITED STATES OF AMERICA: California; Monterey County, Arroyo Seco, 16-V-1958, on Quercus douglasii, E. G. Linsley ; Contra Costa
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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Chariessa dichroa (LeConte), 1860
Opitz, Weston 2017 |
Enoplium dichroum
LeConte 1860: 48 |