Anisoscelini

Distinguished from other Coreidae tribes by the presence of flattened, leaf-like tibial expansions (foliaceous hind legs). Antennal segments 2 and 3 vary: flattened in some genera (e.g., Chondrocera) or terete (cylindrical, tapering, circular in cross-section) in others. First antennal segment length approximately equal to distance from anterior eye margin to tarsus in some genera (e.g., Narnia). Humeral angles and leg coloration (particularly coxae, trochanters, and femora) provide diagnostic characters at genus and species level.

Native range centered in the Americas, with highest diversity in Neotropical environments. Distribution extends from the southern United States (Texas) through Mexico, Central America, and South America; absent from Chile and the Greater and Lesser Antilles. Some genera (e.g., Leptoglossus) have established invasive populations in Europe and eastern Asia through human-mediated introduction.

Feeding habits vary by genus. Members of Anisoscelis show apparent trophic preferences for Passiflora species (Passifloraceae). Leptoglossus occidentalis feeds on conifer seeds and shoots of Pinaceae. Host plant associations are genus-specific rather than uniform across the tribe.

• Passiflora - food plantapparent trophic preference for members of genus Anisoscelis
• Pinaceae - food plantconifer seeds and shoots; genus Leptoglossus

Leptoglossus occidentalis (Western Conifer Seed Bug) is a significant invasive pest in Europe, impacting conifer seed production and forestry operations. Adults disperse to buildings in autumn for overwintering, creating nuisance pest issues. Spread occurs via imported plant material.

• Coreinilacks flattened, leaf-like tibial expansions characteristic of Anisoscelini
• other Coreidae tribesAnisoscelini distinguished by combination of foliaceous hind legs and specific antennal segment morphology

The tribal name was formerly spelled 'Anisoscelidini'; this spelling was incorrectly formed and has been corrected to Anisoscelini.

• Coreidae
• leaf-footed bugs
• Neotropical
• invasive species
• Passiflora
• conifer pests
• foliaceous legs

• BugGuide
• Wikipedia
• iNaturalist taxon
• Catalogue of Life
• Summarized data on the European distribution of Leptoglossus occidentalis Heidemann (Heteroptera: Coreidae: Coreinae: Anisoscelini)
• The genus Anisoscelis Latreille (Hemiptera: Heteroptera: Coreidae: Coreinae: Anisoscelini): new species, taxonomical arrangements, distributional records and key
• Erratum: HARRY BRAILOVSKY (2016) The genus Anisoscelis Latreille (Hemiptera: Heteroptera: Coreidae: Coreinae: Anisoscelini): new species, taxonomical arrangements, distributional records and key. Zootaxa, 4144(2): 195–210.
• Revision of the genus Phthiarella Brailovsky, description of 21 new species, new distributional records, and a key to the known species (Hemiptera: Heteroptera: Coreidae: Coreinae: Anisoscelini)
• Feeding Preference ofHolymenia clavigeraandAnisoscelis foliacea marginella(Hemiptera: Coreidae: Anisoscelini) in Relation to Intra- and Interspecific Features of Host Plants (Passifloraceae)
• Studies in the New World tribe Anisoscelini Laporte, 1832 (Heteroptera: Coreidae: Coreinae): updated distributions, nomenclatural changes, and keys to the genera of the tribe and the species of Anisoscelis Latreille, 1829 and Bitta Osuna, 1984
• Feeding Preference of <I>Holymenia clavigera</I> and <I>Anisoscelis foliacea marginella</I> (Hemiptera: Coreidae: Anisoscelini) in Relation to Intra- and Interspecific Features of Host Plants (Passifloraceae)