Promacrochilo ambiguellus ( Snellen, 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 : 204

Promacrochilo ambiguellus ( Snellen, 1890) ( Figs 115 , 121 , 125 )

Chilo ambiguellus Snellen, 1890 . Trans. Ent. Soc. Lond., 1890: 642. Type locality: India.

Pydna notata Swinhoe, 1891 . Trans. Ent. Soc. Lond., 1891: 479. Type locality: India.

Description. Labial palpi porrect, yellow. Female much larger than male. Forewing yellow, with yellowish brown scales suffused along veins; three dark brown spots present at middle of cell, discocellulares and basal trisection of vein 1A+2A; a series of dark brown spots from apical costa to middle of inner margin. Hindwing with a blurry postmedial line from costa to inner margin. In male genitalia, gnathos semicircular, apex suffused with minute spines; valva broad, a semicircular process present at sacculus; manica with a tuft of coarse spines. In female genitalia, ostium bursae short and thin, a sclerotized plate present; ductus bursae membranous, 3 times as long as corpus bursae; corpus bursae with a spine-like signum.

Material examined. IZCAS: Hainan, Jianfengling , 2♂, 23 July–6 August 1981 , Yuan-Fu Liu, Mao-Bin Gu; Hainan, Maorui , 1♀, 24 August 1984 .

Distribution. China (Hainan); India, Nepal, Myanmar, Thailand, Malaysia.

Figures

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 116–121. Female genitalia. 116. Donacaula forficellus. 117. Archischoenobius pallidalis. 118. A. nigrolepis. 119. A. nanlingensis. 120. Brihaspa atrostigmella sinensis. 121. Promacrochilo ambiguellus. a. Sclerotized plate. Scale bars=1 mm.

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.