Character Details

Character

Size of frenum [103]

Description

Based on position of the scutellar sensilla and the internal cuticular invagination associated with the frenal line (character 104), we interpret the “posterior scutellum” of Mymaridae as likely homologous with what is termed the frenum for other chalcidoids. State 1 is defined for those mymarids in which the "posterior scutellum" is large, and occupies more than half of the scutellar disc. Citation: Schauff (1984: 32).

States

-: inapplicable (frenum absent with no external indication laterally)
notes:
coded examples: Idioporus affinis, Aperilampus sp. Madagascar, Dirhinus giffardii Silvestri, 1913, Elasmus polistis Burks, 1971, Aprostocetus hibus (Burks, 1946) (toggle remainder)
0: frenum comprising less than half dorsal surface of scutellum
7172_mximage
1.Coccobius fulvus
7173_mximage
2.Polstonia pelagocorypha
 
notes:
coded examples: Cleonymus Latreille, 1809, Cales noacki Howard, 1907, Coccophagus rusti, Cirrospilus coachellae, Eurytoma gigantea (toggle remainder)
1: frenum comprising half or more dorsal surface of scutellum
7174_mximage
1.Ooctonus
 
notes: Mymaridae
coded examples: Australomymar sp. Chile, Anaphes_D2564, Ceratanaphes_D1041, Stethynium_ophelimi, Ooctonus_D1597 (toggle remainder)