Description of the mature larva of Suphisellus curtus (Sharp, 1882) (Coleoptera: Noteridae) with chaetotaxy analysis

Abstract

The third-instar larva of Suphisellus curtus (Sharp, 1882) is described and illustrated for the first time, including morphometric and chaetotaxic analyses of the cephalic capsule, head appendages, legs, last abdominal segment, and urogomphus. This is the second detailed larval description for the genus Suphisellus Crotch, 1873. Larvae of this genus can be readily separated from other known noterid larvae by the strongly developed galea, subequal in length to maxillary palpus. Suphisellus curtus differs from S. rufipes (Sharp, 1882) in the dorsal colour pattern, S. rufipes being entirely testaceous and S. curtus testaceous with transverse brown bands between body segments.

Keywords:

• Burrowing water beetle
• Adephaga
• sensilla
• morphometry

Acknowledgement

We thank Yves Alarie for his valuable comments on the manuscript.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

The work of J.I.U was supported by a postgraduate scholarship from CONICET. M.C.M. and J.I.U. were supported by ANPCyT under Grant PICT-2017-1177, and by University of Buenos Aires under Grant UBACyT-20020190100240BA.