Chaetocnema (Chaetocnema) granulosa Baly, 1874

Ruan, Yongying, Yang, Xingke, Konstantinov, Alexander S., Prathapan, Kaniyarikkal D. & Zhang, Mengna, 2019, Revision of the Oriental Chaetocnema species (Coleoptera, Chrysomelidae, Galerucinae, Alticini), Zootaxa 4699 (1), pp. 1-206 : 61

17. Chaetocnema (Chaetocnema) granulosa Baly, 1874

( Fig. 37 )

Chaetocnema granulosa Baly, 1874: 207 . TL: Japan. TD: BMNH.

Distribution: China: Taiwan ( Chûjô, 1935); Korea ( Gruev, 1980), Japan.

Host plants: Rubus hirsutus ( Chûjô 1954; Chûjô & Kimoto 1961); R. trifidus ( Ohno 1960) .

Description: Description is not provided here, as this species has been revised by Konstantinov et al., (2011).

Type: Lectotype male (1 BMNH), labels: 1) Japan, 2) Type , 3) Type, H.T., 4) Baly Coll., 5) Chaetocnema granulosa Baly , Nagasaki; 6 ) Lectotype Chaetocnema granulosa Baly des. A. S. Konstantinov et al. 2009.

Paralectotype: 1 ( BMNH), labels: 1) Baly Coll.; 2) Plectroscelis granulosa Bal Japan ; 3) Paralectotype Chaetocnema granulosa Baly des. A. S. Konstantinov et al. 2009.

Remarks: There is no significant difference between C. granulosa and C. fortecostata in external characters, however, apex of the aedeagus of C. granulosa is more dilated and is generally wider and robust.

Chaetocnema granulosa can easily be confused for C. fortecostata due to the similarity of external characters. There were numerous museum specimens of C. fortecostata labeled as C. granulosa .

Figures

FIGURE 37. A comparison of aedeagi of Chaetocnema fortecostata and Chaetocnema granulosa. A–B Aedeagus of C. fortecostata, ventral and lateral views. C Apex of aedeagus of C. fortecostata, dorsal view. D–E Aedeagus of C. granulosa, ventral and lateral views. F Apex of aedeagus of C. granulosa, dorsal view.