Antillocladius ultimus, Mendes & Andersen, 2008

Mendes, Humberto Fonseca & Andersen, Trond, 2008, A review of Antillocladius Saether and Litocladius Mendes, Andersen et Saether, with the description of two new Neotropical genera (Diptera, Chironomidae, Orthocladiinae), Zootaxa 1887 (1), pp. 1-75 : 38-40

publication ID

https://doi.org/ 10.11646/zootaxa.1887.1.1

DOI

https://doi.org/10.5281/zenodo.5134517

persistent identifier

https://treatment.plazi.org/id/5C31878A-FFDF-FFED-6AAD-FDDB55F4A69D

treatment provided by

Felipe

scientific name

Antillocladius ultimus
status

sp. n.

Antillocladius ultimus sp. n.

( Figs 38–42 View FIGURES 38–42 )

Type material: Holotype male, BRAZIL: Rio de Janeiro: Arraial do Cabo, Morro do Atalaia , 10.i.2006, sweep net (swarming), H.F. Mendes ( MZUSP) . Paratypes: 13 males, same data as holotype . 1 male, São Paulo: Ribeirão Preto, University of São Paulo Campus , 26–29.i.2003, Malaise trap, H.F. Mendes & T. Andersen ( ZSM, ZMBN) .

Diagnostic characters: The species can be separated from all other members of the genus by the dark area on the inferior volsella.

Etymology: From Latin, ultimus , meaning last, as this is the last Antillocladius species to be described here.

Male (n =10, except when otherwise stated). Total length 1.78–2.39, 2.13 mm. Wing length 1.07–1.36, 1.26 mm. Total length / wing length 1.48–1.78, 1.68. Wing length / length of profemur 2.24–2.67, 2.43. Coloration brown, thorax light brown with markings on preepisternum, median anepisternum and notum; legs and tarsi uniformly light brown.

Head. AR 1.22–1.43, 1.31. Ultimate flagellomere 382–482, 436 µm long. Temporal setae 8–11, 10; including 3–4, 4 inner verticals; 3–4, 3 outer verticals; and 2–3, 3 postorbitals. Clypeus with 5–13, 8 setae. Tentorium, stipes, and cibarial pump as in Figure 38 View FIGURES 38–42 . Tentorium 84–125, 111 µm long; 16–25, 21 µm wide. Stipes 104–125, 118 µm long. Palp segment lengths (in µm): 18–25, 22; 36–50, 42; 77–104, 89; 82–104, 93; 95–127, 109. Third palpomere with 2–5, 4 sensilla clavata subapically, longest 9–16, 11 µm long.

Thorax ( Fig. 39 View FIGURES 38–42 ). Antepronotum with 2–4, 3 setae. Dorsocentrals 8–12, 10, acrostichals composed of 0–4, 2 anterior simple and 7–17, 11 scalpellate posterior setae; prealars 2–4, 3; supraalar 1–2, 1. Scutellum with 4– 8, 6 setae.

Wing ( Fig. 40 View FIGURES 38–42 ). VR 1.31–1.37, 1.33. C extension 41–95, 78 µm long. Brachiolum with 1 seta; R with 0–4, 2 setae, other veins and cells bare. Squama with 5–7, 6 setae.

Legs. Spur of foretibia 41–54, 51 µm long; spurs of midtibia 27–38, 32 µm and 16–31, 23 µm long; spurs of hind tibia 43–59, 49 µm and 16–25, 21 µm long. Width at apex of foretibia 27–36, 31 µm; of midtibia 29– 36, 33 µm; of hind tibia 34–48, 40 µm. Comb with 13–17, 14 setae; longest 29–41, 36 µm; shortest 16–23, 20 µm. Lengths and proportions of legs as in Table 7.

Hypopygium ( Figs 41–42 View FIGURES 38–42 ). Tergite IX covered with microtrichia; laterosternite IX with 5–9, 7 setae. Anal point triangular; 43–73, 53 (4) µm long; 23–45, 32 (4) µm wide at base; 5–7, 6 (4) µm wide at apex; with 11– 22, 14 (4) setae. Phallapodeme 75–95, 86 µm long; transverse sternapodeme 34–48, 39 µm long. Virga 29–48, 34 µm long. Gonocoxite 150–184, 171 µm long. Gonostylus 77–98, 87 µm long; megaseta 11–16, 14 µm long. HR 1.70–2.20, 1.98; HV 2.12–2.83, 2.46.

Remarks: This species frequently has a bent anal point, which is considered an artifact due to the slidemounting.

Biology and distribution: This species was taken together with A. atalaia , A. axitiosus , and A. brazuca in Arraial do Cabo, Rio de Janeiro State; and with A. campususp , A. folius , and A. musci in Ribeirão Preto, São Paulo State. See A. atalaia sp. n. for more details.

MZUSP

Museu de Zoologia da Universidade de Sao Paulo

ZSM

Bavarian State Collection of Zoology

ZMBN

Museum of Zoology at the University of Bergen, Invertebrate Collection

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Chironomidae

Genus

Antillocladius