Cryphocricos rufus De Carlo, 1940

Sites, Robert W., 2021, A review of Cryphocricos Signoret, 1850 (Naucoridae: Cryphocricinae) with descriptions of three new species, Zootaxa 4958 (1), pp. 72-94 : 84-85

Cryphocricos rufus De Carlo

( Figs. 24–25 )

Cryphocricus rufus De Carlo 1940 : Rev. Soc. Entomol. Argentina 11:428–430 (misspelling of genus).

Type repository: Museo Argentino de Ciencias Naturales “Bernardino Rivadavia” (Buenos Aires, Argentina) .

Type locality: Brazil: Estado do Rio de Janeiro, Itatiaia .

Discussion: The holotype has intact forelegs but is missing all other tarsi and right hindleg distal to the femur ( Fig. 24 ). The female allotype has intact forelegs and left hindleg ( Fig. 25 ), but the middle legs are complete only through the tibiae and the right hindleg through the femur ( Fig. 22 ). Glue to hold the allotype to the pin has obscured the view of the pterothoracic ventral midline, leg bases, and the left side of the metasternum through abdominal sternum IV.

Diagnosis: This species differs from C. peruvianus by the reddish-brown color, smaller size, laterally rounded hemelytra, and deep concavity in the anterior margin of the pronotum ( De Carlo 1940). In the key to brachypterous specimens, Usinger (1947) distinguished C. rufus from C. daguerrei by the evenly curved lateral margin of the abdomen, from C. barozzii and C. peruvianus by the rounded apical and lateral margins of the hemelytra, and from C. breddini by the body more than half as wide as long. The posterior margin of the subgenital plate of the allotype is broadly concave with rounded posterolateral corners ( Fig. 25 ).

Figures

FIGURES 24–25. Cryphocricos rufus (24) holotype, dorsal, (25) allotype, ventral.

FIGURES 21–23. Holotypes of (21) Cryphocricos obscuratus, dorsal, (22) Cryphocricos peruvianus, dorsal and (23) Cryphocricos peruvianus, ventral. Figure 23 courtesy of H.D.D. Rodrigues.