Caldwell-1949
Guides
Stictolobus borealis
Stictolobus borealis is a species of treehopper in the family Membracidae, subfamily Smiliinae, described by Caldwell in 1949. The species is known from limited distributional records in Nebraska. As a member of the tribe Ceresini, it belongs to a group of treehoppers characterized by distinctive pronotal modifications. Detailed biological information for this species remains sparse in published literature.
Tortistilus abnorma
Tortistilus abnorma is a treehopper species in the family Membracidae, first described by Caldwell in 1949. The species has been documented in North Carolina and Texas based on distribution records. Like other members of Membracidae, it possesses an enlarged pronotum that extends over the body. The specific epithet "abnorma" suggests distinctive morphological characteristics, though detailed descriptions of these features are not readily available in the provided sources.
Tortistilus minutus
Tortistilus minutus is a species of treehopper in the family Membracidae, first described by Caldwell in 1949. The species belongs to the tribe Ceresini within the subfamily Smiliinae. Distribution records indicate occurrence in the northern Great Plains region of North America, specifically Manitoba, Montana, and North Dakota. As with other treehoppers, it is presumed to feed on plant sap, though specific host associations remain undocumented.