Cryphocricos daguerrei 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 : 77

Cryphocricos daguerrei De Carlo

( Figs. 7–8 )

Cryphocricus daguerrei De Carlo 1940 : Rev. Soc. Entomol. Argentina 11:430–431 (misspelling of genus).

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

Type locality: Argentina: Entre Ríos Province, Concordia .

Discussion: The holotype is a brachypterous male with only the right foreleg intact. The left foreleg and right hindleg are complete only through the femur, the left middle leg is complete through the tibia, and the right middle leg and left hindleg are missing ( Figs. 7–8 ). The rivers in Concordia are wide, flat, and muddy, which are not suitable conditions for Cryphocricos ; thus, if indeed the type specimen was collected there, river dynamics probably have changed since its collection in 1931. De Carlo (1968) proposed an allotype from Uruguay; however, this is not permissible under the rules of the ICZN, and Lopez Ruf (1991) challenged the accuracy of the identification based on differences in color, pronotum, and head shape with those of the holotype.

Diagnosis: De Carlo (1941) offered the diagnostic character of abdominal segments II and III (he probably meant III and IV) lateral margins individually slightly curved; thus, creating a non-uniform curvature of the entire abdominal lateral margin. This species differs from C. rufus De Carlo, 1940 by its smaller size, the shape of the hemelytra, the concavity in the prothoracic anterior margin, the shape of the head, and fewer granulations (=tubercles) ( De Carlo 1940). This species differs from C. fittkaui by its darker color and the female subgenital plate is very similar, although it has its differences ( De Carlo 1967). The female subgenital plate was illustrated with the lateral margins sinuate and the posterior margin to have three distinct lobes, with the middle lobe half the length of the lateral lobes, and is comparable to that of C. fittkaui ( De Carlo 1968) .

Figures

FIGURES 7–8. Cryphocricos daguerrei holotype (7) dorsal and (8) ventral. Photos courtesy of H.D.D. Rodrigues.