Aquilargilla basifixa Cui & Xue & Jiang 2018, sp. nov

Aquilargilla basifixa sp. nov. (Figs 3, 7���9, 11) Description. This new species is externally almost identical to A. ceratophora. Male 8 th sternite with cerata slender horn-like. Male genitalia (Fig. 7). Uncus and gnathos absent. Socii small and narrow, acute at apex. Tegumen with two pairs of processes on inner margin, posterior one slender and acute at tip, anterior one small and rounded at tip. Valvula and sacculus digitiform at terminal half; a short finger-like process present at base of valva. Juxta broad and quadrate, concave on posterior margin, with a pair of semicircular lobes on lateral side with spines on edge. Saccus inflated, concave medially. Aedeagus slightly curved, cornuti weak. Female genitalia (Fig. 11). Papillae anales oval. Apophyses anteriores about two-thirds of apophyses posteriores in length. Lamella antevaginalis rounded and wrinkled. Ostium weakly sclerotized. Colliculum narrow. Ductus seminalis arising from posterior part of ductus bursae. Ductus bursae partly sclerotized posteriorly, widening gradually. Corpus bursae oval; signum drop-shaped composed of small and scobinate sclerites opposed to longitudinal axis. Diagnosis. See under Aquilargilla ceratophora sp. nov. Material examined. Holotype, ♂, CHINA: Sichuan (IZCAS): 1 6, Emei Shan, Qingyinge, 800���1000 m, 15��� 17.IX.1957, coll. Lu Youcai (slide No. 5297). Paratypes. Gansu (IZCAS): 2 6 2♀, Wenxian, Tielou, 1450 m, 24.VII.1999, coll. Zhu Chaodong (slide No. 3815); 2♀, Chengxian, Feilongxia, 1020 m, 4.VII.1999, coll. Yao Jian (slide No. 3361). Sichuan (IZCAS): 13 6, Emei Shan, Qingyinge, 800���1000 m, 17���30.VI.1957, 15���17.IX.1957, coll. Zhu Fuxing et al.; 2 6, Wanxian, Wang���erbao, 1200 m, 11.VIII.1993, coll. Song Shimei (slide No. 5298); 3 6, Guanxian, Qingcheng Shan, 700���1000 m, 23.V.1979, 4.VI.1979, coll. Shang Jinwen & Gao Ping (slide No. 5299); 1 6, Luding, Moxi, 1550 m, 12.IX.1982, coll. Wang Shuyong (slide No. 3360). Sichuan (ZFMK): 1 6, Chasseurs Indig��nes des Missionnaires de T��-tsien-Lo��, 1906; 1♀, de T��-tsien-Lo��, �� Mou-Pin, Mai, Juin, 1892, Chasseurs Thib��tains; 1♀, Siao-Lou, 1900, Chasseurs Indig��nes. Chongqing (IZCAS): 1 6, Youyang, Taohuayuan scenic spot, 983 m, 26.V.2017, coll. Li Henan (slide No. 5300). Distribution. China (Gansu, Sichuan, Chongqing). Remarks. A male specimen labeled ���Tschang Tang, Tibet ��� From ZFMK (1 6, Tibet, Tschang-Tang, Dsagar- Berge, 4500 m, Juli, ex coll. Wehrli, 17/55.) has clearly different antennae and male genitalia. It should be treated as another new species of Aquilargilla (D. St��ning, pers. comm.). However, since the single specimen is in bad condition and the locality is dubious, more specimens need to be collected and studied to enable it to be described in future. Etymology. The species is named on the basis of Latin word basifixus, which relates to the processes arising from the base of the tegumen.
Published as part of Cui, Le, Xue, Dayong & Jiang, Nan, 2018, Aquilargilla gen. nov., a new genus of Sterrhinae from China with description of two new species (Lepidoptera, Geometridae), pp. 431-437 in Zootaxa 4514 (3) on pages 433-436, DOI: 10.11646/zootaxa.4514.3.8, http://zenodo.org/record/2608156