Beardius bizzoi, Pinho & Mendes & Andersen, 2013

Pinho, Luiz Carlos, Mendes, Humberto Fonseca & Andersen, Trond, 2013, Revision of Beardius Reiss et Sublette, 1985 (Diptera: Chironomidae), with the description of twenty new species, Zootaxa 3742 (1), pp. 1-78: 24-25

publication ID

http://dx.doi.org/10.11646/zootaxa.3742.1.1

publication LSID

lsid:zoobank.org:pub:78959DF2-CFF7-442A-B7B3-0B1A053A4D73

DOI

http://doi.org/10.5281/zenodo.5271897

persistent identifier

http://treatment.plazi.org/id/DB2587A5-E479-FFCC-FF19-61B07E3DF834

treatment provided by

Felipe

scientific name

Beardius bizzoi
status

sp. n.

Beardius bizzoi   sp. n.

( Figs 26–29 View FIGURES 26–29 )

Type material. Holotype: male, BRAZIL, Santa Catarina State: Urubici, São Joaquim National Park, Morro da Igreja , Rio Pelotas , 1670 m a.s.l., S28°07'37" W49°28'47", 18.viii–05.xii.2004, Malaise trap, L.C. Pinho & L.E.M. Bizzo ( MZSP) GoogleMaps   . Paratypes: 8 males, as holotype ( MZSP, MZUFBA, INPA, ZSM, ZMBN)   .

Diagnostic characters. The species belongs in the tupinamba   group. The male can be separated from other species of the tupinamba   group by the combination of the following characters: large body size (3.8–4.9 mm); coloration brown; R 1 with setae; and superior volsella without microtrichia.

Etymology. Named after Dr. Luís Eduardo Maestrelli Bizzo for collecting some of the material.

Description

Male (n = 8–9, except when otherwise stated). Total length 3.81–4.90, 4.43 mm. Wing length 2.26–2.68, 2.51 mm. Total length / wing length 1.68–1.88, 1.77. Wing length / length of profemur 2.24–2.54, 2.40.

Coloration. Head and abdomen light brown. Thorax pale with scutum, vittae, postnotum and preepisternum stramineous. Legs stramineous.

Head. AR 1.04–1.28, 1.16; ultimate flagellomere 594–749, 696 µm long. Temporal setae 10–13, 11; not well separated in inner and outer verticals and postorbitals. Clypeus with 15–18, 16 setae. Tentorium 134–195, 152 µm long; 30–51, 40 µm wide. Stipes 159–202, 182 (6) µm long. Palpomere lengths (in µm): 35–48, 43; 43–51, 48; 172–202, 190; 175–202, 190; 240–311, 276. Third palpomere with 5–6, 5 sensillae subapically, longest 20–28, 23 µm long.

Thorax. Scutal tubercle absent. Antepronotum without setae. Dorsocentrals 7–10, 9; acrostichals absent; prealars 2. Scutellum with 4–6, 5 setae.

Wing ( Fig. 26 View FIGURES 26–29 ). VR 1.24–1.35, 1.32. R with 16–23, 20 setae; R 1 with 10–17, 14 setae; R 4+5 with 20–33, 27 setae. Brachiolum with 2–3, 2 setae. Remaining veins bare.

Legs. Spur of fore tibia (including scale) 94–131, 112 µm long; spur of mid tibia (including comb) 131–178, 159 µm long; spur of hind tibia (including comb) 140–178, 159 µm long. Width at apex of fore tibia 103–140, 122 µm; of mid tibia 122–178, 140 µm; of hind tibia 140–168, 159 µm. Lengths and proportions of legs as in Table 4.

Hypopygium ( Figs 27–28 View FIGURES 26–29 ). Anal point absent to weakly projected, at most 4 µm long. Tergite IX without setae, tergal bands weak to absent. Laterosternite IX with 2–4, 3 setae. Phallapodeme 81–109, 94 µm long. Transverse sternapodeme 51–86, 63 µm long. Gonocoxite 157–187, 175 µm long. Superior volsella digitiform, weakly curved, 71–81, 76 µm long, with 7–9, 8 dorsal and 4–5, 4 ventral setae, without microtrichia. Median volsella 3–5, 4 µm long, with 3–5, 4 apical setae, longest 28–33, 30 µm long. Inferior volsella clavate, 76–106, 94 µm long, with 2–3, 2 apical thin setae and 8–10, 9 stout, bifid or trifid setae subapically; projection narrowly triangular in dorsal view, arising from basal 2/3 of volsella, bearing fringe of long lamellae ( Fig. 29 View FIGURES 26–29 ). Gonostylus 192–218, 207 µm long. HR 0.73–0.93, 0.85. HV 2.06–2.47, 2.31.

Female and immatures. Unknown.

Distribution. The species is collected in the Santa Catarina State in Brazil.

MZSP

Sao Paulo, Museu de Zoologia da Universidade de Sao Paulo

INPA

Instituto Nacional de Pesquisas da Amazonia

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

Beardius