Acropentias Meyrick, 1890

Chen, Fu-Qiang & Wu, Chun-Sheng, 2014, Taxonomic review of the subfamily Schoenobiinae (Lepidoptera: Pyraloidea: Crambidae) from China, Zoological Systematics 39 (2), pp. 163-208 : 198-201

3.9 Acropentias Meyrick, 1890 ( Figs 9 , 112 , 122 )

Acropentias Meyrick, 1890 . Trans. Ent. Soc. Lond., 1890: 470. Type species: Sparagmia obtusalis Christoph, 1881 , by monotypy (junior synonym of Micraeschus aureus Butler, 1878 ).

Diagnosis. The genus can be distinguished from other genera by vein R 1 stalked with R 2+3+4 and M 2 short stalked with M 3 on forewing.

Description. Head with frons round; labial palpi porrect. A tuft of scales present at outer side of the tibiae of hindlegs.

Wings ( Fig. 9 ). Forewing protruded at middle of outer margin; R 1 to R 4 stalked; R 5 arising from upper angle of cell; M 1 from discocellulares; M 2 and M 3 short stalked, arising from lower angle of cell; Cu 1 and Cu 2 before lower angle of cell; CuP present. Hindwing with Sc+R 1 and Rs stalked, arising from upper angle of cell as M 1; M 2 and M 3 from lower angle of cell; Cu 1 and Cu 2 before lower angle of cell.

Male genitalia. Uncus nearly triangular, dorsal suffused with dense setae; gnathos absent; valva nearly rectangular, covered with dense setae; saccus small; coremata absent; juxta like a rolling column; aedeagus slender, without obvious sclerotized process.

Distribution. Palaearctic and Oriental Regions.

Remarks. The genus has five species at present, of which only one was reported in China so far.

Figures

Figs 7–12. Venations. 7. Ramila. 8. Archischoenobius. 9. Acropentias. 10. Leechia. 11. Brihaspa. 12. Promacrochilo.

Figs 108–115. Adults. 108. Archischoenobius pallidalis. 109. A. nigrolepis. 110. A. nanlingensis. 111. A. minumus. 112. Acropentias aureus. 113. Leechia sinuosalis. 114. Brihaspa atrostigmella sinensis. 115. Promacrochilo ambiguellus.

Figs 122–125. Male genitalia. a. Aedeagus. b. Juxta. 122. Acropentias aureus. 123. Leechia sinuosalis. 124. Brihaspa atrostigmella sinensis. 125. Promacrochilo ambiguellus. Scale bars =1 mm.