Allometopon hybos Sasakawa, 2009

Owen Lonsdale, 2016, Revision of the genus Allometopon Kertész (Diptera: Clusiidae), Zootaxa 4106 (1), pp. 1-127 : 35

publication ID

https://doi.org/ 10.11646/zootaxa.4106.1.1

publication LSID

lsid:zoobank.org:pub:A5ADF236-5219-4014-9DC4-C43F981DD1A4

DOI

https://doi.org/10.5281/zenodo.3509151

persistent identifier

https://treatment.plazi.org/id/6866497B-F135-3456-FF39-A181F791F8C3

treatment provided by

Plazi

scientific name

Allometopon hybos Sasakawa, 2009
status

 

Allometopon hybos Sasakawa, 2009 View in CoL

Figs 120–124 View FIGURES 120 – 124

Allometopon hybos Sasakawa 2009: 45 View in CoL .

Description (partially from Sasakawa (2009)). General: ( Figs 120, 121 View FIGURES 120 – 124 ) Body length 3.5–3.6mm (♂), 3.8–4.4mm (♀). Arista pubescent. M1+2 ratio 2.9. First flagellomere relatively large and high, almost reniform, but not long. Gena relatively high, slightly more than ¼ height of eye.

Chaetotaxy: Four fronto-orbital setae, posterior seta longer. Ocellar seta approximately twice length ocellar tubercle. Postvertical as long as ocellar tubercle. Interfrontal seta relatively large, well-developed. Two dorsocentral setae, closely spaced near posterior margin of scutum, anterior seta approximately ¾ length; smaller third anterior dorsocentral possibly present. Acrostichal seta well-developed. Two large, stout lateral scutellar setae arranged transversely across scutellum.

Colour—male: Setae yellow to slightly brownish. Body mostly yellow, with dorsum of thorax and frons with slight orange tint; first flagellomere black, face (except dorsum) whitish, postgena whitish with anterior half pilose, and parafacial and gena and whitish and pilose; halter white; abdomen brown with tergite 1 paler and epandrium pale brown; paratype male with palpus brownish apically. Wing clear.

Colour—female: As described for male except frons and mesonotum brown tinged, palpus entirely dark brown or only on apical ½–2/3, and abdominal tergites darker posteriorly (about posterior half on tergites 3 and 4, tergites 5 and 6 dark brown), and ovipositor sheath brownish-yellow.

Male terminalia: ( Figs 122–124 View FIGURES 120 – 124 ) Epandrium with narrow spine projecting posteriorly from ventral margin. Surstylus angled posteriorly, subrectangular and slightly curved in cross-section; with strong incurved spine on distal margin. Hypandrium with shallow, narrow lobe with two setae, and long, posteriorly directed arm. Phallapodeme rod-like with shield closely held to shaft along length. Pregonite small, ovate, densely setose. Postgonite narrow, very elongate, with setae on inner and antero-marginal surfaces on distal 2/3. Basiphallus welldeveloped. Epiphallus relatively large and curved. Distiphallus small and subrectangular, approximately 2/5 length phallapodeme. Paraphallus about as long as distiphallus, curved and spinulose dorsally on distal half.

Female terminalia: Not dissected.

Distribution: Laos, Malaysia (Sabah), Philippines.

Holotype: LAOS. Wapikhanthong Prov.: Wapi, 15.xii. I967, native collector [Type No. BPBM 17194] (1♂, BPBM).

Comments: Colour, chaetotaxy and a unique spine on the epandrium reveal a close relationship between this species and Allometopon acum ( Fig. 1 View FIGURES 1 – 5 ), which are differentiated in the key.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Clusiidae

Genus

Allometopon

Loc

Allometopon hybos Sasakawa, 2009

Owen Lonsdale 2016
2016
Loc

Allometopon hybos

Sasakawa 2009: 45
2009
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