Pseudoryssomus triangulus Almeida & Santos, 2014, sp. nov.
Creators: name: Almeida, Lúcia M.
name: Santos, Paula B.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Coccinellidae
Pseudoryssomus
Pseudoryssomus triangulus

description: Pseudoryssomus triangulus sp. nov.
(Fig. 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 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 D). Elytra yellowish red with a triangular black spot, almost extending to apex, not reaching the humeral callus (Fig. 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 B). First abdominal ventrite with postcoxal line incomplete, extending beyond middle of first ventrite; precoxal area coarsely punctured on base of cavity (Fig. 11 E). Genitalia with genital plates triangular, elongate, styli with setae; spermatheca elongate, uniform (Fig. 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 PK 22, 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 PK 22, 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].
Geographical distribution. Commune de Roura, Montagne des Chevaux, French Guiana; Essequibo, Guyana (Fig. 16).
description: Published as part of 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, pp. 42-68 in Zootaxa 3846 (1) on pages 57-58, DOI: 10.11646/zootaxa.3846.1.2, http://zenodo.org/record/250860