Pseudoryssomus triangulus, Almeida, Lúcia M. & Santos, Paula B., 2014

Almeida, Lúcia M. & Santos, Paula B., 2014, Synopsis of Oryssomini Gordon (Coleoptera: Coccinellidae) from the Neotropical region with new species of Oryssomus Mulsant, Pseudoryssomus Gordon and Gordonoryssomus Almeida & Lima, Zootaxa 3846 (1) : -

publication ID	https://doi.org/ 10.11646/zootaxa.3846.1.2
publication LSID	lsid:zoobank.org:pub:1E1B6079-0EFC-426F-B7AD-A8A2837E797E
DOI	https://doi.org/10.5281/zenodo.6132104
persistent identifier	https://treatment.plazi.org/id/56318794-FF87-FFBB-799B-FF608E1DFCBD
treatment provided by	Plazi
scientific name	Pseudoryssomus triangulus
status	sp. nov.

Treatment

Pseudoryssomus triangulus sp. nov.

( Fig. 11 View FIGURE 11 )

Description of holotype (female). Length 5.26, width 3.89 mm. Form elongate oval, widest at middle of elytra, somewhat flattened dorsoventrally ( Fig. 11 View FIGURE 11 C). General color yellowish red, middle of thorax and abdomen yellowish red. Outline of pronotum and elytron discontinuous. Pronotum yellowish red, with a basal black spot, translucent at apex; finely, densely punctured; pubescence of semidecumbent yellowish hairs ( Fig. 11 View FIGURE 11 D). Elytra yellowish red with a triangular black spot, almost extending to apex, not reaching the humeral callus ( Fig. 11 View FIGURE 11 A). Elytral punctures intermixed coarse and fine, dense, slightly larger than on pronotum; sparse in the discal area. Antenna, mouthparts, hypomera, epipleura, and legs brownish yellow. Metaventrite finely, sparsely punctured medially and anteriorly; coarsely, densely punctured laterally and posteriorly with punctures large, often confluent. Abdominal ventrites coarsely punctured, punctures separated by about a diameter or less, punctures becoming coarser laterally ( Fig. 11 View FIGURE 11 B). First abdominal ventrite with postcoxal line incomplete, extending beyond middle of first ventrite; precoxal area coarsely punctured on base of cavity ( Fig. 11 View FIGURE 11 E). Genitalia with genital plates triangular, elongate, styli with setae; spermatheca elongate, uniform ( Fig. 11 View FIGURE 11 F, G).

Male. Unknown.

Etymology. The name of this species refers to the shape of the spot on the elytra.

Discussion. Pseudoryssomus triangulus sp. nov. is somewhat similar to P. crucifer sp. nov., but is clearly distinguished by the shape of the spot and male and female genitalia.

Type material. “Cayenne” “Muséum Paris/1930/Coll. Sicard” “♀” [white label]. “ HOLOTYPE / Pseudoryssomus / triangulus /Almeida & Santos, 2014” [red label]. 1 ex. [ MNHN]; “ Guyane Française,/Commune de Roura,/Montagne des Chevaux, /RN2 PK22, 11.IX.2011,/vitre, SEAG col.” “♀” [white label]. “ PARATYPE / Pseudoryssomus / triangulus /Almeida & Santos, 2014” [yellow label]. 1 ex. [ MNHN]; “ Guyane Française,/ Commune de Roura,/Montagne des Chevaux, /RN2 PK22, 25.IX.2011, /vitre, SEAG col.” “♀” [white label]. “ PARATYPE / Pseudoryssomus / triangulus /Almeida & Santos, 2014” [yellow label]. 1 ex. “ DZUP /289061” [ DZUP]; “ Guyane Française, /Commune de Roura,/Montagne des Chevaux, /RN2 PK22, 23.X.2011, /vitre, SEAG col.” “♀” [white label]. “ PARATYPE / Pseudoryssomus / triangulus /Almeida & Santos, 2014” [yellow label]. 1 ex. “ DZUP /288989” [ DZUP]; “ Guyane Française, /Commune de Roura,/Montagne des Chevaux, /RN2 PK22, 07.XI.2011, 20 m/vitre, SEAG col.” “♀” [white label]. “ PARATYPE / Pseudoryssomus / triangulus /Almeida & Santos, 2014” [yellow label]. 1 ex. “ DZUP /289235” [ DZUP]; “ Guyane Française,/Commune de Roura,/Montagne des Chevaux,/RN2 PK22, 20 m,/ 02.X.2011, solaire/automatique, SEAG col.” “♀” [white label]. “ PARATYPE / Pseudoryssomus / triangulus /Almeida & Santos, 2014” [yellow label]. 1 ex. “ DZUP /289898” [ DZUP]; “ Guyane Française,/Commune de Roura, /Montagne des Chevaux, /RN2 PK22, 20 m,/ 15.X.2011, solaire/automatique, SEAG col.” “♀” [white label]. “ PARATYPE / Pseudoryssomus / triangulus /Almeida & Santos, 2014” [yellow label]. 1 ex. “ DZUP /289902” [ DZUP]; “ Guyane Française,/Commune de Roura,/Montagne des Chevaux, /RN2 PK22, 20 m, / 30.X.2011, vitre, SEAG col.” “♀” [white label]. “ PARATYPE / Pseudoryssomus / triangulus /Almeida & Santos, 2014” [yellow label]. 1 ex. “ DZUP /289074” [ DZUP]; “see notes” “ BRITISH GUIANA:/ Essequibo, R./Moraballi Creek./ 10-X-1929 /Oxf. Univ. Expedn. /B.M. 1929-485” “427” “ Oryssomus /det. R. Gordon 91” “♀” [white label]. “ PARATYPE / Pseudoryssomus / triangulus /Almeida & Santos, 2014” [yellow label]. 1 ex. [ BMNH].