Lignyodes, Caldara, 2017

Caldara, Roberto, 2017, Morphological evidence from immature stages further suggests Lignyodina being close to Tychiina (Coleoptera, Curculionidae, Curculioninae, Tychiini), Zootaxa 4320 (3), pp. 426-446 : 441

Key to immature stages of the subgenera of the genus Lignyodes

ThE fOLLOWINg kEyS ARE bASEd ONLy ON fOuR kNOWN dEScRIPTIONS Of IMMATuRE STAgES IN ThIS gENuS. WE INcLudEd ThE PRESENTLy dEScRIbEd IMMATuRES Of L. bischoffi ANd L. enucleator fOR SubgENuS Lignyodes s. str. ANd dEScRIPTIONS Of L. (Neotylopterus) pallidus ( CLARk 1978) ANd L. (Chionanthobius) schwartzi ( CLARk & ANdERSON 1981). FuRThER cOMMENTS ARE REPORTEd IN ThE DIScuSSION.

LARvAE

1. Meso- and metathorax with two ss, 1 short and 1 minute................................. .. subgenus Chionanthobius

- Meso- and metathorax with only one very short ss ........................................................... 2

2. Meso- and metanotum with one short prs. Abdominal segments I–VII with two ss ................ subgenus Neotylopterus

- Meso- and metanotum without prs. Abdominal segments I–VII with only one ss ............... subgenus Lignyodes s. str.