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The first instar larva of Eripus oaxacanus Straneo & Ball (Coleoptera: Carabidae: Peleciini): indicator of affinity or convergence?
Author(s) -
LIEBHERR JAMES K.,
BALL GEORGE E.
Publication year - 1990
Publication title -
systematic entomology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.552
H-Index - 66
eISSN - 1365-3113
pISSN - 0307-6970
DOI - 10.1111/j.1365-3113.1990.tb00303.x
Subject(s) - biology , synapomorphy , larva , instar , seta , zoology , tribe , mandible (arthropod mouthpart) , anatomy , botany , phylogenetic tree , clade , genetics , genus , gene , anthropology , sociology
. The first instar larva of Eripus oaxacanus Straneo & Ball is diagnosed and described, representing the first laboratory‐described larval stage for a species of the tribe Peleciini. The larva possesses the derived character states of: (1) stemmata lacking, (2) mandible lacking penicillus, (3) maxilla with setose lacinia, (4) labium lacking a ligula, (5) claws single, (6) urogomphi short, rounded. These derived character states, if considered synapomorphic, would place Peleciini as a close relative to Brachi‐nini. Classifications based on adult characters are not concordant with this interpretaton, and the weight of evidence suggests that convergence due to a similar parasitic lifestyle is the basis for the derived similarity of Eripus and Brachinus larvae.