Podisus distinctus (Stål, 1860), Stal, 1860

Matesco, Viviana Cauduro, Bianchi, Filipe Michels, Fürstenau, Brenda Bianca Rodrigues Jesse, Silva, Priscila Poock Da, Campos, Luiz Alexandre & Grazia, Jocelia, 2014, External egg structure of the Pentatomidae (Hemiptera: Heteroptera) and the search for characters with phylogenetic importance, Zootaxa 3768 (3), pp. 351-385 : 361-362

publication ID

https://dx.doi.org/10.11646/zootaxa.3768.3.5

publication LSID

lsid:zoobank.org:pub:076F3E92-066C-46A0-9ADE-09D3AA8F8707

persistent identifier

https://treatment.plazi.org/id/03A487D3-9A2A-0320-E497-2337EB1EFD97

treatment provided by

Plazi

scientific name

Podisus distinctus (Stål, 1860)
status

 

Podisus distinctus (Stål, 1860) and Podisus nigrispinus (Dallas, 1851)

( Figs. 1 View FIGURES 1 – 12 , 13–22 View FIGURES 13 – 24 ; Tab. 2 View TABLE 2 )

Eggs barrel-shaped; color prior to embryonic development yellow in P. distinctus and golden yellow with black spines in P. nigrispinus ( Fig. 1 View FIGURES 1 – 12 ); operculum round and convex; chorion translucent and spinose. An eclosion line is evident under SM as a smooth light band delimited by the AMPs ( Fig. 1 View FIGURES 1 – 12 ). With the development of the embryo, the eggs become darker, and the red eyes of the nymph become evident through the chorion. The aero-micropylar processes are circularly arranged in a row around the anterior pole, translucent, very long and slender ( Fig. 1 View FIGURES 1 – 12 ). Embryonic development has not been followed, so the egg-burster has not been observed. According to Grazia et al. (1985), the egg-burster in P. nigrispinus (described as P. connexivus Bergroth ) does not become evident during embryonic development because of its lighter color. The morphological aspects of the eggs have been previously studied under SM for P. nigrispinus ( Grazia et al. 1985; Saini 1994) and more recently under SEM for P. distinctus , emphasizing its postdepositional dynamics ( Sá et al. 2013).

The chorion surface is sparsely spinose under SEM. The lateral wall bears short interconnected spines forming wide polygonal markings ( Figs. 13, 15, 18, 20 View FIGURES 13 – 24 ). The operculum is similarly sculptured, but the spines are longer, and the polygonal markings are less evident ( Figs. 14, 19 View FIGURES 13 – 24 ), especially in P. nigrispinus . The eclosion line is evident as a slightly depressed broad smooth strip ( Figs. 16, 21 View FIGURES 13 – 24 ). The aero-micropylar processes are slightly clubbed at apex, and their openings are subapical and outwardly directed ( Figs. 16, 17, 21, 22 View FIGURES 13 – 24 ). The surface of the processes is smooth even under higher magnification ( Figs. 17, 22 View FIGURES 13 – 24 ).

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Pentatomidae

Genus

Podisus