Matsumuraja formosana Takahashi 1925
Creators: name: Xu, Ying
name: Chen, Jing
name: Jiang, Liyun
name: Qiao, Gexia
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Aphididae
Matsumuraja
Matsumuraja formosana

description: Matsumuraja formosana Takahashi, 1925
(Figs 1, 8a, 9f, 10a, 11a, b)
Specimens examined. Four apterous viviparous females, CHINA: Guizhou (Guiyang City), 27.IX.1999, No. 12454- 1-1, on Rubus, coll. L. K. Zhang; one apterous viviparous female, CHINA: Hunan (Xiangxi City), 26.IX.2015, No. 36094-1-1, on Rubus, coll. F. F. Niu; two apterous viviparous females, CHINA: Sichuan (Chengdu City), 17.VIII.2018, No. 43946-1-1, on Rubus, coll. J. F. Ji and Y. Xu; two apterous viviparous females, CHINA: Sichuan (Ganzi City), 9. VII.2019, No. 45790-1-1, on Rubus, coll. J. F. Ji; one apterous viviparous female, CHINA: Sichuan (Ganzi City), 10. VI.2021, No. 50541-1-1, on Rubus, coll. T. Y. Liu and S. Xu; one apterous viviparous female and two alate viviparous females, CHINA: Sichuan (Luding County), 1.X.2018, No. 44902-1-1, on Rubus, coll. J. F. Ji; four apterous viviparous females, CHINA: Tibet (Shigatse City), 24. VII.2021, No. 51962-1-1, No. 51963-1-1, on Rubus, coll. Y. Xu; two apterous viviparous females, CHINA: Tibet (Nyingchi City), 29. VI.2021, No. 51729-1-1, on Rubus, coll. Y. Xu; one apterous viviparous female and one alate viviparous female, CHINA: Tibet (Nyingchi City), 27. VI.2021, No. 51711-1-1, on Rubus, coll. Y. Xu; two apterous viviparous females and four alate viviparous females, CHINA: Shaanxi (Xianyang City), 20. V.1984, No. 6226-1-2, on Rubus, coll. X. F. Dai (as M. rubicola in Zhang et al. 1999a).
Diagnosis. Ant. I with one long finger-like process (Fig. 1b), 0.79–1.12 times the segment; long, thick and capitate antennal setae, and the longest setae of Ant. III 0.47–1.14 times Ant. IIIBD; abdominal tergites I–IV and VI–VII, each with two paired short conical spinal tubercles; tergite V with one paired short conical spinal tubercles; the spinal tubercles on abdominal tergites VI–VII are longer than others; and the dorsal setae are long, thick and capitate, 1.61–3.00 times Ant. IIIBD.
Distribution. China (Guizhou, Hunan, Shaanxi, Sichuan, Taiwan (Tao 1963), Tibet).
Comment. The species was reported in Zhang et al. (1999b) and Jiang et al. (2011) from China. However, after checking the specimens (Fig. 8b), it appears that they are Matsumuraja rubi (Matsumura). The main characteristics of the specimens in the two books are as follows: Ant. I with one long finger-like process on the inner side; thoracis nota and abdominal tergites I–VII each with one paired long finger-like spinal tubercles, and the marginal tubercles are slightly swollen; SIPH long cylindrical, not swollen. Although the Ant. I of the two species have a long finger process on the inner side, the main distinctions between them are as follows: M. formosana: abdominal tergites I–IV and VI–VII, each with two paired short conical spinal tubercles and marginal tubercles also short conical (Fig. 8a) (M. rubi: abdominal tergites I–VII, each with one paired long finger-like spinal tubercles and the marginal tubercles slightly swollen); M. formosana: spinal setae of the abdomen long and capitate, and much longer than the spinal tubercles (M. rubi: spinal setae of abdomen long and capitate but much shorter than the spinal tubercles); M. formosana: SIPH long cylindrical and swollen at distal 1/3 part (M. rubi: SIPH long cylindrical, not swollen). Therefore, the species that is listed in the two books is Matsumuraja rubi (Matsumura).
description: Published as part of Xu, Ying, Chen, Jing, Jiang, Liyun & Qiao, Gexia, 2024, Revision of Matsumuraja (Hemiptera, Aphidinae, Macrosiphini) in China with two new synonyms and four new records, pp. 27-42 in Zootaxa 5477 (1) on pages 28-29, DOI: 10.11646/zootaxa.5477.1.2, http://zenodo.org/record/12681412