Anotogaster chaoi Zhou, 1998

Yang, Guo-Hui & Zi, Dong-Dong, 2023, Descriptions of the last instar larvae of Anotogaster chaoi Zhou, 1998 and Neallogaster annandalei (Fraser, 1923) from Erhai Lake Basin, Yunnan, China (Odonata: Cordulegastrids), Zootaxa 5357 (3), pp. 423-433 : 424

Anotogaster chaoi Zhou, 1998

( Figs 1a–m ; 3a ; 4a–d ; 8a–b ; 9a )

Figures

FIGURE 1. Anotogaster chaoi: (a) male exuvia, dorsal view, right antennae missing; (b) right antenna; (c) palps, ventral view; (d) prementum, ventral view; (e) same, dorsal view; (f) left mandible, posterior view; (g) same, inner surface; (h) right mandible, posterior view; (i) same, inner surface; (j) left maxilla; (k) right maxilla; (l) terminalia, dorsal view; (m) S8–10 of female, ventral view.

FIGURE 3. Dorsal view of ligula’s median process: (a) A. chaoi; (b) A. gregoryi; (c) N. annandalei; (d) N. hermionae. Gap between small curved protrusions and the middle process have been indicated with red arrows.

FIGURE 8. Cordulegastrids larvae from the Erhai Lake Basin, Yunnan: (a) the final instar larva of A. chaoi; (b) male teneral adult of A. chaoi recently emerged in the laboratory; (c) larva of A. gregoryi in laboratory; (d) female of A. gregoryi laying eggs in the wild; (e) the final instar larva of N. annandalei; (f) female teneral adult of N. annandalei recently emerged in the laboratory; (g) the final instar larva of N. hermionae in laboratory; (h) emergence of male adult of N. hermionae in the laboratory.

FIGURE 9. Habitats of the four cordulegastrids larvae from the Erhai Lake Basin, Yunnan: (a) A. chaoi; (b) A. gregoryi; (c) N. annandalei; (d) N. hermionae.

FIGURES 4–7. Lateral and ventral view of caudal abdominal segments of cordulegastrid larvae. 4: A. chaoi; 5: A. gregoryi; 6: N. annandalei; 7: N. hermionae. In each figure (a) lateral spines of S8–9 of female, ventral view; (b) S8–10 of female, ventral view; (c) caudal abdominal segments of male, lateral view; (d) lateral spines of S8–9 of male, lateral view. Lateral spines on abdomen are indicated with red arrows.