Antillocladius ultimus Mendes & Andersen 2008, sp. n.
Creators: name: Mendes, Humberto Fonseca
name: Andersen, Trond
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Chironomidae
Antillocladius
Antillocladius ultimus

description: Antillocladius ultimus sp. n.   
(Figs 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. 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). 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). 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). 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.
description: Published as part of 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), pp. 1-75 in Zootaxa 1887 (1) on pages 38-40, DOI: 10.11646/zootaxa.1887.1.1, http://zenodo.org/record/5133869