Puparium of Merosargus cingulatus Schiner, 1868 and Ptecticus lanei James, 1941 (Diptera: Stratiomyidae: Sarginae), with new geographical records for the species and a list of all known immatures of the subfamily

Abstract

The puparia of Merosargus cingulatus Schiner, 1868 and Ptecticus lanei James, 1941, two Neotropical species of Sarginae (Stratiomyidae), are described and illustrated based on 19 and 17 immatures of each species, respectively. The specimens were collected in rotting vegetal material in Carambeí, state of Paraná, Brazil. Images of reared adults of both species are provided, allowing future identifications of specimens. New distributional records include the first occurrences of M. cingulatus in the Brazilian states of Ceará, Maranhão, Mato Grosso do Sul, and Rio de Janeiro. With these two new descriptions, immature stages (6th instar and/or puparium) of 29 species of Sarginae are now known, with only eight species known from the Neotropical Region.