Mollitrichosiphum (Metatrichosiphon) nigrofasciatum (Maki)

Zhang, Dong & Qiao, Gexia, 2010, Mollitrichosiphum Suenaga from China (Hemiptera: Aphididae), with the description of one new species, Zootaxa 2608, pp. 1-24 : 11-12

Mollitrichosiphum (Metatrichosiphon) nigrofasciatum (Maki)

( Figures 5 , 12 b, c)

Trichosiphum nigrofasciatum Maki, 1917: 16 .

Greenidea nigrofasciata (Maki) : Takahashi, 1921: 65; Takahashi, 1930: 322 Paratrichosiphum nigrofasciatum (Maki) : Takahashi, 1931: 31 Metatrichosiphon nigrofasciatum (Maki) : Raychaudhuri, 1956: 81; Tao, 1990: 112; Remaudière & Remaudière, 1997:

177.

Description. The morphological characters of the apterous viviparous female and alate viviparous female are the same as in the descriptions by Raychaudhuri (1956).

Embryo (in alate viviparous female). Body long oval and entirely colorless. Dorsal setae of body long and pointed. Head with 1 pair of frontal setae, 1 pair of spinal dorsal setae in anterior part and 2 pairs of dorsal setae between eyes. Pronotum with 2 pairs of spinal and 2 pairs of marginal setae; mesonotum and metanotum each with 1 pair of spinal, 1 pair of pleural and 2 pairs of marginal setae. Abdominal tergite I–V each with 1 pair of spinal, 1 pair of pleural and 1 pair of marginal setae; tergites VI and VII each with 1 pair of spinal and 1 pair of marginal setae; tergite VIII with 1 pair of spinal setae. Siphunculi present.

Material examined. China, Taiwan: Shinten, 10.iv.1922, No. Y 7918, 7 apterous viviparous females and 13 alate viviparous nymphs (R. Takahashi); Logan, 22.ix. 19322, apterous viviparous females and 7 alate viviparous females on Quercus sp. (C.C. Tao) ( BMNH). China, Fujian: Fuzhou, 1939, 3 apterous viviparous females, 1 alate viviparous female and 18 apterous viviparous nymphs (M.S. Yang) ( BMNH); Mt. Wuyi, 20.vii.2003, No.14560, 2 apterous viviparous females on Lithocarpus glaber (G.X. Qiao & J.S. Wang) ; Mt. Wuyi, 25.v.2004, No.14805, 6 alate viviparous females on Cyclobalanopsis sp. (K. Guo). China, Zhejiang: Wuyanling, 2.viii.2005, No. 17387, 4 apterous viviparous females on Quercus aliena ( Y. Fang & H.C. Zhang) ; Wuyanling, 29.vii.2005, No.17331, 1 apterous viviparous female and 2 alate viviparous nymphs on Fagaceae ( Y. Fang & H.C. Zhang) ; Wuyanling, 29.vii.2005, No.17329, 2 apterous viviparous females,on Quercus sp. ( Y. Fang & H.C. Zhang); Wuyanling, 29.vii.2005, No.17333, 2 alate viviparous females on Fagaceae ( Y. Fang & H.C. Zhang) . China, Hainan: Bawangling, alt. 1015m, 9.v.2007, No.196321, alate viviparous female; Mt. Diaoluo, 30.iii.2006, No.18510, 5 apterous viviparous females and 2 alate viviparous females on Lithocarpus sp.; Mt. Diaoluo, alt. 980m, 28.iii.2006, No.18502, 1 apterous viviparous female and 2 alate viviparous females on Castanopsis fabric ; Mt. Diaoluo, alt. 980m, 17.xi.2006, No.19531, 1 alate viviparous female on Fagaceae (X.L. Huang) ; Mt. Diaoluo, alt. 950m, 28.iii.2006, No.18499, 1 apterous viviparous female on Castanopsis sp.

Distribution. China (Zhejiang, Fujian, Hainan, Taiwan), Japan.

Host plants. Lithocarpus glaber , Lithocarpus sp., Quercus aliena and Castanopsis sp. ( Fagaceae ).

Figures

FIGURE 5. Mollitrichosiphum (Metatrichosiphon) nigrofasciatum (Maki), apterous viviparous female: a. dorsal view of head; b. antennal segment III; c. ultimate rostral segment; d. mesosternal furca; e. dorsal setae on abdominal tergite III; f. siphunculus; g. cauda; h. anal plate; i. genital plate. Alate viviparous female: j. antennal segment III. Embryo: k. dorsal view of body. Scale bars = 0.10 mm.

FIGURE 12. Dorsal view of body, a. Mollitrichosiphum (Metatrichosiphon) nandii Basu (apterous viviparous female), b. Mollitrichosiphum (Metatrichosiphon) nigrofasciatum (Maki) (apterous viviparous female), c. Mollitrichosiphum (Metatrichosiphon) nigrofasciatum (Maki) (alate viviparous female), d. Mollitrichosiphum (Metatrichosiphon) rhuase Ghosh (alate viviparous female), e. Mollitrichosiphum (Metatrichosiphon) rhuase Ghosh (apterous viviparous female), f. Mollitrichosiphum (Metatrichosiphon) yamabiwae Suenaga (apterous viviparous female).