Telmatogeton yamaguchiae, Marigo & Lamas & Fusari, 2020

Marigo, Thaís Coimbra, Lamas, Carlos José Einicker & Fusari, Lívia Maria, 2020, A new marine intertidal chironomid from the Brazilian coast (Diptera: Chironomidae: Telmatogetoninae), Zootaxa 4763 (1), pp. 117-124 : 118

Telmatogeton yamaguchiae sp. n.

( Figures 1–4 )

urn:lsid:zoobank.org:act:94751B80-0477-4C77-8107-63ADC166059C

Type material. Holotype male, Brazil, São Paulo, Ubatuba Municipality, Praia de Itamambuca , 23º24’25”S 45º00’33”W, 24.i.2016, L. M. Fusari, C. Yamaguchi ( MZUSP) . Paratypes: 3 males, 3 pupae, 3 females, 4 larvae ( MZUSP) same data as holotype .

Etymology. Named after Dr. Carolina Yamaguchi , for having collected the first specimens and in recognition of her help during the field work.

Diagnostic characters. Telmatogeton yamaguchiae sp. n. differs from its congeners by the combination of the following characters: male, with broad gonocoxite, concave dorsally and with dorsobasal lobe; small and round gonostylus; aedeagal complex formed as a conical central projection, aedeagal lobes articulated, curved and in the apex like concave form forceps.

Figures

FIGURE 1. Telmatogeton yamaguchiae sp. n., male. A. Habitus of imago, lateral view. B. Head, frontal view. C. Antenna. D. Wing. E. Hypopygium in dorsal view, with tergite IX removed. F.Aedeagal complex, details of internal apodemes (Ap), aedeagal lobes (AL), phallapodeme (Pha) and transverse sternapodeme (Tsa).

FIGURE 2. Telmatogeton yamaguchiae sp. n., female. A. Genitalia in dorsal view, TIX and detail of notum (No), spermathecal ducts (Spt), coxosternapodeme (Csa), gonocoxite IX (Gc IX), gonostylus (Gs) and cercus (Ce). B. Genitalia in ventral view, detail of gonapophysis VIII (Gp VIII).

FIGURE 3. Telmatogeton yamaguchiae sp. n., pupa. A. Pupa inside cocoon covered with grains of sand. B. Thorax and thoracic horn, lateral view. C. Plastron plate with rosette. D. Frontal apotome. E. Terminal disc.

FIGURE 4. Telmatogeton yamaguchiae sp. n., larva. A. Frontal apotome and dorsal sclerites. B. Antenna. C. Premandible. D. Mandible. E. Mentum.