Antillocladius biota, Humberto F. Mendes, Trond Andersen & Ole A. Saether, 2004

Humberto F. Mendes, Trond Andersen & Ole A. Saether, 2004, A review of Antillocladius Saether, 1981; Compterosmittia Saether, 1981 and Litocladius new genus (Chironomidae, Orthocladiinae), Zootaxa 594, pp. 1-82 : 30-32

publication ID

https://doi.org/ 10.5281/zenodo.158827

publication LSID

lsid:zoobank.org:pub:F9E7D599-8EFC-48DD-BE9D-DFCD7A25B944

DOI

https://doi.org/10.5281/zenodo.6273039

persistent identifier

https://treatment.plazi.org/id/03D487DA-FFE8-D275-0F67-714D8D1A959F

treatment provided by

Plazi

scientific name

Antillocladius biota
status

sp. nov.

Antillocladius biota View in CoL new species

( Fig. 3 View FIGURE 3 A–F)

Type material: Holotype male, BRAZIL: São Paulo State, Parque Estadual Intervales, sede de pesquisa, 16.viii.2000, larvae taken on tree trunks, H.F. Mendes ( MZUSP, slide mounted in Euparal). Paratypes: 2 males, as holotype ( ZMBN).

Diagnostic characters: The male imago can be separated from other members of the genus by having bare wing membrane; squama with a few setae ; long costal extension; scalpellate acrostichals starting near antepronotum; long virga ; nearly parallel­sided anal point with blunt apex and weak lateral setae ; and inferior volsella short and pointed triangular.

Etymology: Named after the Biota program supported by FAPESP; the name is a noun in apposition.

Male (n = 1–3).

Total length 1.91–2.12 mm. Wing length 1.19–1.25 mm. Total length / wing length 1.60–1.74. Wing length / length of profemur 2.45–2.54. Coloration brown, thorax dark brown, tarsi of all legs light brown.

Head. AR 0.60–0.61, ultimate flagellomere 241–294 µm. Temporal setae 8, including 2–3 inner verticals, 1–2 outer verticals and 3–4 postorbitals. Clypeus with 6–7 setae . Tentorium, stipes and cibarial pump as in Fig. 3 View FIGURE 3 A; tentorium 126–131 µm long, 10 µm wide at sieve pore; stipes 88 µm long. Palpomere lengths in µm: 18–25, 30–38, 56–63, 71–76, 101–103. Third palpomere with 3–5 sensilla clavata subapically, longest 13 µm long.

Thorax ( Fig. 3 View FIGURE 3 B). Antepronotum with 1–3 setae . Dorsocentrals 8–11; acrostichals 11– 12, all scalpellate starting close to antepronotum; prealars 2–3. Scutellum with 6 setae .

Wing ( Fig. 3 View FIGURE 3 C). VR 1.38–1.64. Costal extension 76–88 µm long. Brachiolum with 1 seta, R with 0–3 setae , R1 with 0–1 seta, other veins bare. Wing membrane bare. Squama with 3–6 setae .

Legs. Spur of front tibia 38–50 µm long, spurs of middle tibia 17–20 µm and 25–33 µm long, of hind tibia 17–20 µm and 43–51 µm long. Width at apex of front tibia 28–33 µm, of middle tibia 28–30 µm, of hind tibia 33–38 µm. Hind tibial comb with 9–11 setae , shortest seta 13–18 µm long, longest seta 28–33 µm long. Lengths (in µm) and proportions of legs as in Table 3 View TABLE 3 .

Hypopygium ( Fig. 3 View FIGURE 3 D–F). Anal point 56–58 µm long; 20–25 µm wide at base, with 13–14 strong lateral setae , void of microtrichia except at base. Laterosternite IX with 7–8 setae . Phallapodeme 68–70 µm long. Transverse sternapodeme slightly arcuate; with rounded oral projections, 63–76 µm long. Virga 58 µm long. Gonocoxite 119–134 µm long; with long, low inferior volsella, with rounded projection orally. Gonostylus 76–81 µm long; megaseta 13–15 µm long. HR 1.57–1.77, HV 2.51–2.79.

TABLE 3. Lengths (in µm) and proportions of legs of Antillocladius biota new species.

  fe ti ta1 ta2 ta3 ta4 ta5 LR BV SV BR
p1 468–497 517–604 390–420 224–234 127–136 78 49–58 0.69–0.77 2.78–3.18 2.46–4.65 2.5–2.7
p2 497–525 525–556 205–224 107–175 78–88 39–58 29–39 0.39–0.43 3.59–4.85 4.61–5.04 2.4–2.5
p3 546–575 595–643 341 175–205 136–156 68 49–58 0.53–0.57 3.26–3.47 3.34–3.57 3.0–3.5
MZUSP

Museu de Zoologia da Universidade de Sao Paulo

ZMBN

Museum of Zoology at the University of Bergen, Invertebrate Collection

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Chironomidae

Genus

Antillocladius

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