Shape Variation Within Morphs and Between Species of Soapberry Bug


SOCIETY FOR INTEGRATIVE AND COMPARATIVE BIOLOGY
2021 VIRTUAL ANNUAL MEETING (VAM)
January 3 – Febuary 28, 2021

Meeting Abstract


37-3  Sat Jan 2  Shape Variation Within Morphs and Between Species of Soapberry Bug Yorsz, MC*; Angelini, DR; Colby College; Colby College mcyors22@colby.edu

The red-shouldered soapberry bug Jadera haematoloma is a species of true bug, native to the United States. The species displays a nutrition-dependent wing polyphenism, where juveniles with high food access develop short wings and greater egg-laying capacity, while individuals with lower food access develop long, functional wings and delayed egg production. Morphological variation within the two morphs has not been previously explored. Here I present geometric morphometric (GMM) analysis revealing significant shape differences within the long wing morph produced by differential food access during development. In addition, I compare J. haematoloma’s wing morphology to the closely related species Jadera sanguinolenta, finding that the short wing individuals of both species have comparable wing shapes while long wing individuals have distinct ones.

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