Phyllomya volvulus (Fabricius 1794)
- Dataset
- A systematic study of Old World Phyllomya Robineau-Desvoidy (Diptera: Tachinidae)
- Rank
- SPECIES
Classification
- kingdom
- Animalia
- phylum
- Arthropoda
- class
- Insecta
- order
- Diptera
- family
- Tachinidae
- genus
- Phyllomya
- species
- Phyllomya volvulus
description
(Figs 42, 54, 72, 86, 100, 155 – 156)
description
Description. Body length: 6.5 – 8.0 mm. Male. Terminalia: Sixth tergite entire, weakly concave on anterior margin, with several setae on posterior portion; surstylus slender in lateral view, evenly narrowed to a pointed apex, with several hairs; cerci in dorsal view completely fused along basal 1 / 3 with suture obliterated, evenly narrowed to apex, in lateral view weakly constricted at basal 1 / 3; pregonite only slightly pointed at middle; postgonite not extending beyond apex of epiphallus; dorsal sclerite of distiphallus weakly produced dorsally near apex, apical membranous portion as long as dorsal sclerite. Female. Terminalia: Sixth tergite entire, weakly concave on anterior margin, with rows of strong setae on posterior portion; 6 th sternite with a row of several setae on posterior margin; 7 th tergite divided into long, ovate hemitergites, with a row of setae on posterior margin; 7 th sternite with several hairs only on posterior margin; 8 th hemitergite rather long on upper portion, broadly fused with hypoproct near middle, short and inclined anteriorly on lower portion; 8 th sternite slightly longer than 6 th. Description of first instar larva. Body length ca. 1 mm; cephaloskeleton rather narrow on apical 1 / 2, dorsal margin very weakly pointed near middle in lateral view; 2 nd thoracic segment with 4 – 5 anterodorsal rows of fine spinules; 2 nd to 6 th abdominal segments each with 4 – 5 posteroventral rows of short, fine spinules, without anterodorsal spinules, 7 th segment with weak posterior rows of spinules.
diagnosis
Diagnosis. Head dichoptic; 2 proclinate orbital setae; vertex wide, about 1 / 3 of head width; arista short plumose; palpus black; 1 presutural and 0 postsutural acrostichal setae; 3 katepisternal setae; costa haired above and below; mid tibia with 2 anterodorsal setae in male, 3 in female; hind tibia with 3 preapical dorsal setae; male claws and pulvilli slightly shorter than 5 th tarsomere; male 5 th abdominal sternite with posterior lobe sharply pointed at postero-interior corner.
discussion
Remarks. Despite the apparent differences in general features, this species resembles P. takanoi in the male genital structure. It is possible that this species is widely distributed from Europe to Far East Asia, but not in Japan.
distribution
Distribution. Europe (northwards to Scotland and Lapland), Transcaucasia, Russia (S. Siberia, Khabarovsk, Amur), China (Jilin).
materials_examined
Material examined. Germany: 1 ♂, Bayern; 1 ♂, 1 ♀, Dachau, 3. vi. 1918, 4. vii. 1913; China, Jilin: 5 ♂♂, 1 ♀, Mt. Changbaishan, 1900 – 2300 m, 9. viii. 2004, H. Shima; 1 ♂, 5 ♀♀, Nanchangbaishan, 1400 – 1700 m, 11. viii. 2004, H. Shima. [All KUM]
Name
- Homonyms
- Phyllomya volvulus (Fabricius 1794)