Antillocladius antecalvus Saether

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: 27-29

publication ID 10.5281/zenodo.158827

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Antillocladius antecalvus Saether


Antillocladius antecalvus Saether  

( Fig. 2 View FIGURE 2 A –E)

Antillocladius antecalvus Saether, 1981: 4   , Fig. 2 View FIGURE 2 A –G.

Antillocladius antecalvus Saether   ; Spies and Reiss 1996: 75.

Material examined: Type material as in Saether (1981). BRAZIL: São Paulo, Pedregulho, Furna São Pedro, 1 male with pupal exuviae, 7.vii. 2000, S. Mateus ( MZUSP); Santa Catarina State, São Bento do Sul, 26 ° 19 ' 25.6 ''S, 48 ° 18 ' 26.5 ''W, 1 male, 13–16.x. 2001, Malaise trap, M.V. Yamada (UFSCar). VENEZUELA: Aragua, Parque Nacional Henri Pittier, Rancho Grande, 10 ° 21.047 'N, 67 ° 41.198 'W, 21 males, 16–18.ix. 1999, about 1000 m a.s.l., sweep net & light trap, T. Andersen (2 MIZA, 19 ZMBN); Falcón, Rio Mitare near San Luis, 11 °07.930'N, 69 ° 39,184 'W, 18 males, 2001, 589 m a.s.l., light trap, R.W. Holzenthal, R. Blahnik, H. Paprocki & C. Cressa (2 MIZA, 16 ZMBN).

Diagnostic characters: The male imago can be separated from other members of the genus by having 0–3 apical setae   on the wing membrane; squama with 1–3 setae   ; few scalpellate to non­scalpellate acrostichals in the middle of scutum; virga   absent; and inferior volsella large with anterior bare, strongly set off rounded projection and low posterior lobe. The female differs from other known females by having tergite IX undivided, but tergite setae   still in two groups. The pupa has thorn­like macrosetae and anal lobe laterally expanded.

Remarks: The species was previously known only from Saint Vincent. Saether (1981) described the male and female in detail. The males from Venezuela vary slightly from the specimens from Saint Vincent, as they have scalpellate acrostichals (not observed from St. Vincent), the transverse sternapodeme is straight to weakly arcuate, and the shape of gonostylus varies slightly. The pupa is described below. The specimens from Venezuela were all taken in mountainous areas with rainforest. The Brazilian specimen was taken in a Cerrado formation in the northeast São Paulo State.

Pupa (n = 1)

Total length 2.04 mm. Exuviae pale, nearly transparent.

Cephalothorax. Frontal apotome as in Fig. 2 View FIGURE 2 C. Ocular field with three pairs of setae   . Antennal sheath smooth. One median antepronotal, 14 µm long. Precorneals in single row ( Fig. 2 View FIGURE 2 D), each about 20 µm long; distance between anterior and median seta 9 µm, between median and posterior seta 5 µm, between anterior and posterior seta 16 µm, other thoracic setae   not measurable.

Abdomen ( Fig. 2 View FIGURE 2 A –B). Numbers of caudal spines on tergites II –VIII as: 23, 24, 22, 22, 23, 23, 20. Length (in µm) of longest caudal spines on tergites II –VIII as: 8, 11, 11, 9, 9, 9, 7. Anal lobe ( Fig. 2 View FIGURE 2 E) with three thorn­like macrosetae 19, 18 and 17 µm long. Genital sac overreaches anal lobe by 47 µm.


Museu de Zoologia da Universidade de Sao Paulo


Museo del Instituto de Zoologia Agricola Francisco Fernandez Yepez


Museum of Zoology at the University of Bergen, Invertebrate Collection














Antillocladius antecalvus Saether

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

Antillocladius antecalvus

Spies 1996: 75

Antillocladius antecalvus

Saether 1981: 4