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Stagonomus Gorski, 1852

Pentatoma (Stagonomus) Gorski, 1852: 81.

Onylia Mulsant & Rey, 1866: 168, 185. (objective junior synonym)

Type Species: Stagonomus: Cimex bipunctatus Fabricius, 1781 (= Pentatoma amoenus Brulle, 1832), by monotypy. Onylia: Cimex bipunctatus Fabricius, 1781 (= Pentatoma amoenus Brulle, 1832), by monotypy.

Stagonomus subgenus Dalleria Mulsant & Rey, 1866

Dalleria Mulsant & Rey, 1866: 168, 180.

Type Species: Pentatoma pusillum Herrich-Schäffer, 1833, by subsequent designation (Kirkaldy, 1909).


Tribal Placement:

Included Species:
Subgenus Dalleria
bipunctatus (Linnaeus, 1758)
     pusillus (Herrich-Schäffer, 1833) [junior synonym]
     binotatus (Hahn, 1835) [junior synonym]
     consimilis (Costa, 1847) [junior synonym]
     gibbus (Fieber, 1861) [junior synonym]
     plataspis (Horváth, 1883) [junior synonym]
Seidenstücker, 1965
grenieri (Signoret, 1865)

Subgenus Stagonomus
amoenus (Brullé, 1832)
     bipunctatus (Fabricius, 1781) [primary junior homonym]
     italicus (Gmelin, 1790) [primary junior homonym]

Key to Species
 (modified from Wagner, 1964 and Derzhansky & Péricart, 2005)

1      Last two antennal segments black; abdomen of female extending apically as a cone shape, to a point which protrudes beyond the pygidial plate; length 6-8 mm. (subgenus Stagonomus)

amoenus (Brullé)

-       Last two antennal segments pale yellow or reddish; abdomen of female not cone-shaped apically, not exceeding pygidial plate; length not exceeding 6.3 mm. (subgenus Dalleria)



2(1)  Connexivum with each segment marked with black along both anterior and posterior margins; basal angles of scutellum, each with a large whitish callous spot; length 4.5-6.2 mm

bipunctatus (Linnaeus)

-       Connexivum completely pale yellow; basal angles of scutellum lacking whitish callous spots, or if spots present, they are very small



3(2)   Inner lateral margins of pygophore with a small black tooth on each side; length 4.5-5.3 mm

devius Seidenstücker

-        Inner lateral margins of pygophore lacking black teeth on each side; length 5.0-6.3 mm.

grenieri (Signoret)







Researchers Genus Index Systematics Host Information
Bibliography Species Index Biographies & Type Info Natural Enemies
Catalogs Identifications Collection Lists Other resources
Number of Genera & Species Collected at Lights Maternal Care
Pentatomoids as Food or Medicine    




David A. Rider
Professor of Entomology
North Dakota State University
202 Hultz Hall
Fargo, ND 58105
E-Mail: David.Rider@ndsu.edu

Published by the Department of Entomology 

Prospective students may schedule a visit by calling 1-800-488-NDSU.