Numbers
16 spp. in 6 genera in our area
(1),
Identification
Mesonotum not divided by a transverse groove between bases of fore wings. Protibia with 1 apical spur. Last tergum and last sternum of both sexes apically thin and without cylindrical projection. Pronotum in lateral view sloping forward at about 45°; pronotum in dorsal view with posterior margin weakly concave, with medial length over one-half lateral length. Fore wing with posterior-most vein (2A) straight, parallel to, and mostly close to posterior margin of wing. Pedicel much shorter than flagellomere 1. Metanotum without cenchrus.
Slender, laterally compressed. Elongated pronotum. Mostly black, some with light colored markings. Clubbed antennae.
keys to NA genera and CA spp. in
(2)
Overview of Species
Tribe Cephini
Calameuta clavata Calameuta middlekauffi Cephus cinctus Cephus pygmaeus Trachelus tabidus
Tribe Hartigiini
Caenocephus aldrichi Phylloecus bicinctus Phylloecus cowichanus Phylloecus fasciatus Phylloecus riesi
Phylloecus trimaculatus Janus abbreviatus Janus bimaculatus Janus integer Janus quercusae
Janus rufiventris
Food
hosts: grasses (incl. grain crops), shrubs (incl. berries, roses, willows)
(3)Remarks
Some are serious pests, e.g.
wheat stem sawflies