Polytrichophora rostra

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This page should be cited as follows (rationale):
Mathis W, Zatwarnicki T (2012) A revision of the new world species of Polytrichophora Cresson and Facitrichophora, new genus (Diptera, Ephydridae). ZooKeys 231 : 1–116, doi. Versioned wiki page: 2012-10-24, version 28011, https://species-id.net/w/index.php?title=Polytrichophora_rostra&oldid=28011 , contributors (alphabetical order): Pensoft Publishers.

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BibTeX:

@article{Mathis2012ZooKeys231,
author = {Mathis, Wayne N. AND Zatwarnicki, Tadeusz},
journal = {ZooKeys},
publisher = {Pensoft Publishers},
title = {A revision of the new world species of Polytrichophora Cresson and Facitrichophora, new genus (Diptera, Ephydridae)},
year = {2012},
volume = {231},
issue = {},
pages = {1--116},
doi = {10.3897/zookeys.231.3687},
url = {http://www.pensoft.net/journals/zookeys/article/3687/abstract},
note = {Versioned wiki page: 2012-10-24, version 28011, https://species-id.net/w/index.php?title=Polytrichophora_rostra&oldid=28011 , contributors (alphabetical order): Pensoft Publishers.}

}

RIS/ Endnote:

TY - JOUR
T1 - A revision of the new world species of Polytrichophora Cresson and Facitrichophora, new genus (Diptera, Ephydridae)
A1 - Mathis W
A1 - Zatwarnicki T
Y1 - 2012
JF - ZooKeys
JA -
VL - 231
IS -
UR - http://dx.doi.org/10.3897/zookeys.231.3687
SP - 1
EP - 116
PB - Pensoft Publishers
M1 - Versioned wiki page: 2012-10-24, version 28011, https://species-id.net/w/index.php?title=Polytrichophora_rostra&oldid=28011 , contributors (alphabetical order): Pensoft Publishers.

M3 - doi:10.3897/zookeys.231.3687

Wikipedia/ Citizendium:

<ref name="Mathis2012ZooKeys231">{{Citation
| author = Mathis W, Zatwarnicki T
| title = A revision of the new world species of Polytrichophora Cresson and Facitrichophora, new genus (Diptera, Ephydridae)
| journal = ZooKeys
| year = 2012
| volume = 231
| issue =
| pages = 1--116
| pmid =
| publisher = Pensoft Publishers
| doi = 10.3897/zookeys.231.3687
| url = http://www.pensoft.net/journals/zookeys/article/3687/abstract
| pmc =
| accessdate = 2024-12-23

}} Versioned wiki page: 2012-10-24, version 28011, https://species-id.net/w/index.php?title=Polytrichophora_rostra&oldid=28011 , contributors (alphabetical order): Pensoft Publishers.</ref>

See also the citation download page at the journal.


Taxonavigation

Ordo: Diptera
Familia: Ephydridae
Genus: Polytrichophora

Name

Polytrichophora rostra Mathis & Zatwarnicki, 2012 sp. n.Wikispecies linkZooBank linkPensoft Profile

Diagnosis

This species is distinguished from congeners by the following combination of characters: Small to moderately small shore flies, body length 1.80–2.25 mm.
Head: Frons dull, moderately heavily microtomentose, partially2-toned, mostly grayish tan to grayish black with some faint golden reflections on posterior 3/4, anterior 1/4 becoming orange immediately along ptilinal suture. Antenna mostly yellow to yellowish orange, dorsal portion of pedicel and to a lesser degree basodorsal area of basal flagellomere with some blackish coloration; arista with 5 dorsal rays. Face at narrowest point about equal to combined length of pedicel and basal flagellomere; face densely microtomentose, microtomentum with subshiny to pearly luster, mostly yellowish white but with considerable gold coloration in antennal grooves and extended laterally onto parafacial; parafacial not markedly differing from midfacies in color, becoming silvery white ventrally and posteriorly; parafacial with slight ventral dilation; gena relatively short, less than 1/4 eye height; gena-to-eye ratio 0.18–0.19.
Thorax: Mesonotum mostly slightly dull to subshiny, moderately densely microtomentose, mostly brown to tan laterally; pleural area gray. Lacking stout setae on apical half; anterior margin of wing lacking large, spine-like setae; costal vein ratio 0.45–0.63; M vein ratio 0.55–0.58. Forefemur lacking row of 9-10 short, stout setae along apical half of anteroventral surface; forefemur with posteroventral row of 6–7 setulae, each subequal to width of femur; tibiae mostly yellowish at apices, otherwise gray medially; basal tarsomeres yellow, apical 1–2 brown.
Abdomen: Tergites subshiny to shiny medially, grayish black, becoming grayer laterally; tergite 5 of male somewhat pointed posteriorly, lacking distinctive row of setulae apically. Male terminalia (Figs 64–67): Epandrium in posterior view (Fig. 64) as an inverted tear drop, wide basally, at midheight, tapered ventrally to form a narrowly pointed ventral margin, connected dorsally around cerci, in lateral view (Fig. 65) with most of posterior margin mostly straight, angled anteriorly and either end, ventral portion forming a beak-like extension that tapers to a narrow point, anterior margin shallowly zigzagged, apical portion bearing numerous short setulae; cerci prominent, moderately well developed; aedeagus complex, in lateral view (Fig. 67) elongate, doubly folded back on itself, basiphallus elongate, narrow, pointed apically, distiphallus more narrowly developed than basiphallus, folded back twice with apical segment oriented in same direction as general plane of terminalia, with complicated smaller folds and lines, in ventral view (Fig. 66) with basiphallus tubular, elongate, distiphallus twisted and irregularly curved; phallapodeme in lateral view (Fig. 67) elongate, clavate, narrowed toward aedeagal base, keel only slightly extended, in ventral view (Fig. 66) appearing aforeshortened as small irregularly rounded structure with short knobs; gonite in lateral view (Fig. 67) rod-like, narrow, elongate, irregularly parallel sided, in ventral view (Fig. 66) angularly curved, like a boomerang; hypandrium in lateral view (Fig. 67) elongate, very narrow, sinuous, in ventral view (Fig. 66) irregularly H-shaped with bar shallowly curved and posterior arms subequal to each other, anterior arms, narrow, left arm considerably shorter than right arm, both narrowly developed.

Type material

The holotype male is labeled “PERU. Madre de Dios: Manu, Rio Manu,250 m[,] Pakitza, 12[sic, 11]°7[six, 56.6]'S, 70[sic, 1]°58 [sic, 16.9]'W, 9-23 Sep 1988[,] Wayne N. Mathis/USNM ENT 00285963 [plastic bar code label]/HOLOTYPE ♂ Polytrichophora rostra Mathis & Zatwarnicki, USNM [red].” The holotype is double mounted (minuten pin in a block of plastic), is in good condition (abdomen removed and dissected, midlegs missing), and is deposited in the USNM. One paratype (♂; USNM) bears the same label data as the holotype. Other paratypes are as follows: PERU. Cuzco: Paucartambo, Atalaya (Río Alto Madre de Dios; 12°53.1'S, 71°21.6'W; 600 m), 4 Sep 1988, W. N. Mathis (1♂; USNM).

Type locality

Peru. Madre de Dios: Rio Manu, Pakitza (11°56.6'S, 71°16.9'W; 250 m).

Other specimens examined

Neotropical. ECUADOR. Napo: Pastaza (01°38'S, 77°0.1'W), J. R. Levi-Castillo (1♂; USNM).

Distribution

(Fig. 68). Neotropical: Ecuador (Napo), Peru (Cuzco, Madre de Dios).

Etymology

The species epithet, rostra, is the Latin word for beak and refers to the shape of the beak-like epandrium as viewed in lateral view.

Remarks

Like Polytrichophora setulosa, this species has asymmetry in the anterior hypandrial arms, which is probably a synapomorphy that indicates a close relationship with that species. This species is distinguished by the beak-like apical process of the epandrium, best seen in lateral view (Fig. 65), which is unmistakable and is the primary character that distinguishes this species from congeners within the conciliata group.

Original Description

  • Mathis, W; Zatwarnicki, T; 2012: A revision of the new world species of Polytrichophora Cresson and Facitrichophora, new genus (Diptera, Ephydridae) ZooKeys, 231: 1-116. doi

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