Notiocoenia acutella Mathis,

Mathis, Wayne N. & Marinoni, Luciane, 2016, Revision of Ephydrini Zetterstedt (Diptera: Ephydridae) from the Americas south of the United States, Zootaxa 4116 (1), pp. 1-110: 16-17

publication ID

http://doi.org/10.11646/zootaxa.4116.1.1

publication LSID

lsid:zoobank.org:pub:22D15539-E49E-4D6C-BFCF-D4DBC72BA640

persistent identifier

http://treatment.plazi.org/id/967487E2-FF9F-FF83-FF4D-9E90FFFEFAC4

treatment provided by

Plazi

scientific name

Notiocoenia acutella Mathis
status

 

2. Notiocoenia acutella Mathis 

Figs. 9–11View FIGURES 9 – 11, Map 2

Notiocoenia acutella Mathis 1980: 14  .— Mathis and Zatwarnicki 1995: 249 –250 [world catalog].

Diagnosis. Although very similar to specimens of P. paniculata  , specimens of this species may be distinguished by the following character states of the male preabdomen and terminalia: 4 th abdominal sternite subrectangular, posterior margin truncate, setae at posterior margin slightly larger but not clumped; ventral margin of epandrium with conspicuous U-shaped medial emargination in posterior view; aedeagus more slender and with more distinct taper toward apex; gonite with acutely pointed process posteriorly. As in description of N. paniculata  except as follows: Moderately small to medium-sized shore flies, body length 2.78–3.93 mm.

Head: Gena-to-eye ratio 0.16–0.18; eye height-to-width ratio 0.86–0.89.

Thorax: Legs tending to consistently be more yellowish orange, with little or no blackish coloration.

Abdomen: Male sternite 4 subrectangular, posterior margin truncate, setae at posterior margin slightly larger but not clumped or clustered. Male terminalia ( Figs. 9–11View FIGURES 9 – 11): Epandrium in posterior view ( Fig. 9View FIGURES 9 – 11) as an inverted U, more thinly developed dorsally, in lateral view ( Fig. 10View FIGURES 9 – 11) conspicuously thinner dorsally, thereafter ventrally gradually becoming wider, widest at ventral 1 / 3, ventral 1 / 3 tapered to a rather bluntly rounded point; ventral margin, which is probably the fused surstylus, truncate with a conspicuous U-shaped medial emargination (best seen in posterior view); cerci free in cercal cavity, not fused with epandrium, semihemispherical; aedeagus in lateral view ( Fig. 11View FIGURES 9 – 11) elongate, slender, narrowly tubular, very gradually tapered to apical point; gonite well developed, with acutely pointed process posteriorly.

Type material. The holotype male is labeled “ CHILE: Osorno Prov. [Termas de] Aguas Calientes (1 km SE) 530 m. elev. 7–8 Feb. 1978 WNMathis/ HOLOTYPE Notiocoenia acutella Mathis  [handwritten, red].” The holotype is double mounted (minute nadel), is in good condition, and is deposited in the USNM (76067). The allotype female and 10 paratypes (6 ♂, 4 ♀; DEI) are labeled “Sud. Chile [Aisen] 14. 4. 40. (14 Apr 1940) Puerto Puyuguapi [44 ° 18 'S, 72 ° 32 'W] leg. G. H. Schwabe 201.” Other paratypes are as follows: CHILE: Coquimbo: El Pangue (30 ° 26 'S, 71 °01'W), 1 Nov 1954, P. G. Kuschel (1 ♂; USNM). Malleco: Perquenco  (16.1 km N; 38 ° 25 'S, 72 ° 23 'W), 1 Jun 1951, A. E. Michelbacher, E. S. Ross (1 ♂; CAS). Osorno: Anticura (1 km W; 40 ° 39 'S, 72 ° 10 'W; 430 m), 1–3 Feb 1978, W. N. Mathis (1 ♂; USNM).

Type locality. Chile. Osorno: Termas de Aguas Calientes (1 km SE; 40 ° 41 'S, 72 ° 21 'W; 530 m). Distribution (Map 2). Neotropical: Chile (Coquimbo, Malleco, Osorno  ), between 38 °– 44 °S.

MAP 2. Distribution map for Notiocoenia acutella Mathis. 

USNM

Smithsonian Institution, National Museum of Natural History

DEI

Senckenberg Deutsches Entomologisches Institut

CAS

California Academy of Sciences

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Ephydridae

Genus

Notiocoenia

Loc

Notiocoenia acutella Mathis

Mathis, Wayne N. & Marinoni, Luciane 2016
2016
Loc

Notiocoenia acutella

Mathis 1995: 249
Mathis 1980: 14
1980