Podonomus pepinellii, Roque & Trivinho-Strixino, 2004

Roque, Fabio De Oliveira & Trivinho-Strixino, Susana, 2004, Podonomus pepinellii n. sp., first record of the genus and subfamily from Brazil (Diptera: Chironomidae: Podonominae), Zootaxa 689 (1), pp. 1-7 : 2-5

publication ID

https://doi.org/ 10.11646/zootaxa.689.1.1

publication LSID

lsid:zoobank.org:pub:FE8AA110-DB37-4D50-B317-2B42A0783B7C

DOI

https://doi.org/10.5281/zenodo.5030054

persistent identifier

https://treatment.plazi.org/id/03B16917-FFC0-FFDC-FEB0-5E3EFBE4FC9E

treatment provided by

Felipe

scientific name

Podonomus pepinellii
status

sp. nov.

Podonomus pepinellii View in CoL sp. n.

Type material. Holotype: male imago with associated pupal skin (slide­mounted in Euparal). Brazil, Minas Gerais, Camanducaia, first­order stream (22°53'S, 46°02'W) at 1853 m elevation, 23.v.2004, leg. M. Pepinelli and N. Hamada; deposited in the collection of the Museu de Zoologia da Universidade de São Paulo, São Paulo, Brazil ( MZUSP). GoogleMaps

Adult male (n = 1) ( Figs. 1–7 View FIGURES 1–7 )

Body length 3.36 mm; wing 1.64 mm long, 0.48 mm wide. Head brown; thorax yellowish brown, with mesonotum and episternum dark brown; wings grayish; legs and abdominal tergites brownish.

Head. Temporal setae 16, clypeals 4. Antenna with 14 flagellomeres ( Fig. 1 View FIGURES 1–7 ), Fm14 52 µm, Fm13 165 µm, Fm1–12 697 µm long; AR = 0.31; apical flagellomeres as in Fig. 2 View FIGURES 1–7 . Palp as in Fig. 3 View FIGURES 1–7 ; palpomere lengths 2–5: 32 µm, 116 µm, 84 µm, 80 µm.

Thorax. Antepronotals 6; acrostichals about 40, biserial; dorsocentral (Dc), humeral (H), prescutellar (Pr), and prealar (Pa) setation as in Fig. 4 View FIGURES 1–7 ; scutellars 6; postnotals absent.

Wing ( Fig. 5 View FIGURES 1–7 ). Membrane without setae, with microtrichia. VR 0.92. Brachiolum with 5 setae, R with 27, squama with 5. Costa extended 120 µm beyond apex of R 4+5.

Leg lengths and proportions in Table 1 View TABLE 1 . Spur ( Fig. 6 View FIGURES 1–7 ) lengths: PI 50; PII 38, 42; PIII 40, 86 µm. Comb of hind tibia with 11 spiniform setae.

Hypopygium ( Fig. 7 View FIGURES 1–7 ). Gonocoxite length 150 µm, gonostylus 62 µm; HV 2.4. Gonostylus simple, not differentiated into lobes; megaseta of apical lobe 20 µm long; P, x and y setae present, but not conspicuous. Genitalic apodemes as in Fig. 7 View FIGURES 1–7 ; phallapodemes in longitudinal, mesal position, with distal portions protruded outside the hypopygium.

Pupa (n = 1) ( Figs. 8–11 View FIGURES 8–11 )

Exuviae pale, mesonotum with median­lateral and posterior brownish spots. Total length 3.6 mm. Frontal apotome and prefrons as in Fig. 8 View FIGURES 8–11 . Thoracic horn as in Fig. 9 View FIGURES 8–11 . Plastron plate of thoracic horn large, rounded, triangular, 240 µm long by 208 µm greatest width, with closely set and densely arranged pores. External membrane of thoracic horn with elongate, sharply pointed polygonal mesh. Respiratory atrium opening to plastron through 4 aeropyles; 3 short precorneals. Thoracic setation as in Fig. 10 View FIGURES 8–11 ; distance from Dc1–3 to Dc4 about 220 µm. Posterior angles of abdominal segments III–VIII protracted into large transverse processes ending in sharp, straight points. Abdominal chaetotaxy as in Fig. 11 View FIGURES 8–11 (sternites I and II are incomplete). Abdominal segments VIII and IX with 6 and 5 macrosetae, respectively; anal spur reduced.

Etymology. Named in honour of Mateus Pepinelli, our friend, who has contributed much to our studies of the Chironomidae and who collected the holotype.

MZUSP

Museu de Zoologia da Universidade de Sao Paulo

R

Departamento de Geologia, Universidad de Chile

PI

Paleontological Institute

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Chironomidae

Genus

Podonomus

GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF