Calletaera acuticornuta, Jiang, Nan, Xue, Dayong & Han, Hongxiang, 2014

Jiang, Nan, Xue, Dayong & Han, Hongxiang, 2014, A review of Luxiaria Walker and its allied genus Calletaera Warren (Lepidoptera, Geometridae, Ennominae) from China, Zootaxa 3856 (1), pp. 73-99 : 83-84

Calletaera acuticornuta sp. nov.

Figs 33, 34 , 58 , 75 , 93 , 107

Description. Head. Antennae pale yellowish brown suffused with blackish brown scales dorsally, bipectinate in male, longest ramus about twice length of diameter of antennal shaft; filiform in female. Frons dark brown, bottom margin greyish white, not protruding. Labial palpi with first segment greyish white, second and third segment dark brown. Vertex greyish yellow.

Thorax. Patagia, tegula and dorsum pale greyish brown. Hind tibia with two pairs of spurs in both sexes, dilated and with hair-pencil in male. Forewing length: male 17–19 mm; female 19–20 mm. Apex of forewing acute; outer margin of forewing straight, that of hind wing slightly protruding at end of M1. Both wings yellowish white. Forewing with antemedial line indistinct, forming a greyish brown patch on costa; medial line greyish brown, indistinct, protruding outwards at M1; discal spot greyish brown; short strip-like; postmedial line indistinct, black dot-like on each vein, protruding outwards at M1, then bent inwards; a greyish brown band present outside postmedial line, distinct below M1; submarginal line yellowish white, flanked by greyish brown and crenulate bands, outer band narrower and less distinct than inner one; terminal line greyish black, indistinct, accompanied by a row of black dots inside; fringes yellowish white. Hind wing with medial line greyish black, nearly straight; discal spot indistinct; postmedial line black and serrate, thickened on each vein; a pale greyish brown band present outside postmedial line; submarginal line, terminal line and fringes similar to those of forewing. Underside yellowish white; transverse lines black, only discal spots, postmedial and terminal lines of both wings distinct; submarginal line of forewing forming a black patch on costa. Forewing with R1 long-stalked with R2, Sc connected with R1+2 by a short bar.

Abdomen. First abdominal segment greyish white, remaining segments yellowish brown suffused with sparse black scales. Tuft of scales present on male sternite III.

Male genitalia. Uncus short, rounded with a stout finger-shaped process apically. Gnathos with median process vestigial. Valva deeply bifurcate; dorsal arm setose, rounded distally, slightly protruding at middle of dorsal margin; ventral arm bearing long setae at terminal half, tapered with a curved spine at tip. Saccus triangular, longer than length of uncus. Juxta short, protruding at middle of posterior margin. Aedeagus tapered posteriorly; vesica with two spine-like cornuti, apical one longer and stouter than basal one, about one quarter length of aedeagus.

Female genitalia. Lamella postvaginalis small and semicircular. Ductus bursae with an antrum, about twice as long as length of corpus bursae, slightly curved medially, sclerotized at posterior half. Corpus bursae oval; signum oval, with 11 to 14 marginal teeth. Seventh sternite sclerotized and with a shallow cleft posterior.

Diagnosis. The diagnostic characters are given under C. obliquata .

Type material. Holotype, ♂, CHINA: Hainan ( IZCAS): Baisha, Nankai, Nanmaola, 1261 m, 10.V.2009, coll. Chen Fuqiang. Paratypes: Hainan ( IZCAS): 18 ♂ 7♀, same locality as holotype, 12–14.V.2009, coll. Chen Fuqiang and Yan Keji; 2 ♂ 1♀, Yinggeling, 950–1100 m, 27.VIII–12.IX.2005, coll. Liu Chunxiang; 1 ♂, Lingshui, Diaoluoshan, 10.XII.2007, coll. Li Jing; 1♀, Bawangling, Dong’er Linchang, 1004 m, 7.IV. 2008, coll. Lang Songyun; 2 ♂ 3♀, Ledong, Jianfengling, Tianchi, 808 m, 12.IV.1980, 1–5.V.2007, 18–22.V.2009, coll. Zhang Baolin et al.; 1 ♂ 5♀, Jianfengling, 19–26.III.1980, 6.V.1983, coll. Zhang Baolin & Gu Maobin; 1 ♂, Ledong, Jianfengling, Yulingu, 707 m, 21.V.2009, coll. Chen Fuqiang.

Distribution. China (Hainan).

Etymology. The species is named on the basis of the Latin adjectives cornutus and acutus, referring to the sharp cornutus.

Figures

FIGURES 29 – 47. Adults. 29 – 30. Calletaera obliquata. 29, male (Yunnan); 30, ditto, underside; 31 – 32. C. obvia sp. nov. 31, male (holotype, Hunan); 32, ditto, underside; 33 – 34. C. acuticornuta sp. nov. 33, male (holotype, Hainan); 34, ditto, underside; 35 – 36. C. rotundicornuta sp. nov. 35, male (holotype, Guangxi); 36, ditto, underside; 37 – 38. C. consimilaria. 37, male (Sichuan); 38, ditto, underside; 39 – 41. C. subexpressa. 39, male (syntype of Calletaera digrammata, Lienping, ZFMK); 40, male (Fujian); 41, ditto, underside; 42. C. basipuncta, male (syntype, Taiwan, BMNH); 43. C. postvittata, male (Sumatra, BMNH); 44 – 45. C. dentata sp. nov. 44, male (holotype, Hainan); 45, ditto, underside; 46 – 47. C. trigonoprocessus sp. nov. 46, male (holotype, Sichuan); 47, ditto, underside.

FIGURES 54 – 59. Male genitalia. 54, Luxiaria tephrosaria; 55, L. phyllosaria; 56, Calletaera obliquata; 57, C. obvia sp. nov. (paratype); 58, C. acuticornuta sp. nov. (paratype); 59, C. rotundicornuta sp. nov. (paratype). Scale bar = 1 mm.

FIGURES 65 – 76. Aedeagus. 65, Luxiaria mitorrhaphes; 66, L. acutaria; 67, L. amasa; 68, L. emphatica (holotype, BMNH); 69, Luxiaria emphatica (holotype of Luxiaria costinota, BMNH); 70, L. emphatica; 71, L. tephrosaria; 72, L. phyllosaria; 73, Calletaera obliquata; 74, C. obvia sp. nov. (paratype); 75, C. acuticornuta sp. nov. (paratype); 76, C. rotundicornuta sp. nov. (paratype). Scale bar = 1 mm.

FIGURES 77 – 98. Aedeagus and sternites of of male and female abdomen. 77 – 81. Aedeagus. 77, Calletaera consimilaria; 78, C. subexpressa; 79, C. postvittata (BMNH); 80, C. dentata sp. nov. (holotype); 81, C. trigonoprocessus sp. nov. (holotype). Scale bar = 1 mm. 82 – 84. Eighth sternite of male abdomen. 82, Luxiaria phyllosaria; 83, Calletaera obliquata; 84, C. subexpressa. 85 – 98. Seventh sternite of female abdomen. 85, Luxiaria mitorrhaphes; 86, L. acutaria; 87, L. amasa; 88, L. emphatica; 89, L. tephrosaria; 90, L. phyllosaria; 91, Calletaera obliquata; 92, C. obvia sp. nov. (paratype); 93, C. acuticornuta sp. nov. (paratype); 94, C. rotundicornuta sp. nov. (paratype); 95, C. consimilaria; 96, C. subexpressa; 97, C. dentata sp. nov. (paratype); 98, C. trigonoprocessus sp. nov. (paratype).

FIGURES 107 – 113. Female genitalia. 107, Calletaera acuticornuta sp. nov. (paratype); 108, C. rotundicornuta sp. nov. (paratype); 109, C. consimilaria; 110, C. subexpressa; 111, C. postvittata (BMNH); 112, C. dentata sp. nov. (paratype); 113, C. trigonoprocessus sp. nov. (paratype). Scale bar = 1 mm.