Ophthalmitis dissita Jiang, Xue & Han

Jiang, Nan, Xue, Dayong & Han, Hongxiang, 2011, A review of Ophthalmitis Fletcher, 1979 in China, with descriptions of four new species (Lepidoptera: Geometridae, Ennominae), Zootaxa 2735, pp. 1-22 : 7

Ophthalmitis dissita Jiang, Xue & Han sp. nov.

Figs. 13–14 , 48 , 60 , 72

Description. Head. Antenna about 2/5 length of forewing, partly bipectinate, length of longest ramus about three times diameter of male antennal shaft. Frons pale yellowish, rounded, not protruding, with pair of medial pale yellowish brown dots. Labial palpus blackish brown, extending slightly beyond frons, second segment with greyish white hair-like scales. Vertex pale green. Thorax. Dorum pale green. Patagium pale green, blackish brown distally. Tegula pale green, blackish brown medially. Posterior part of mesonotum with pair of black spots. Posterior margin of metanotum black. Two pairs hind tibia spurs in male, not dilated, without hair-pencil. Forewing: Length: male 26–29 mm. Forewing outer margin weakly protruded, hindwing rounded. Wings pale green, transverse lines blackish brown. Patterns of forewing: costa diffused with short longitudinal greyish brown flecks; antemedial, medial, postmedial, submarginal lines forming four black patches on costa; antemedial line wavy, indistinct; medial line serrate, only distinct near inner margin; postmedial line serrate, only distinct between costa and M1, near inner margin, appearing as spots on other veins, slightly protruded outwards above CuA1, distinctly protruded inwards below CuA1, then paralleling to medial line; submarginal line appearing as series of small triangular patches between veins, distinct between M1 and M3, near costal, inner margins; terminal line appearing as series of short strips between veins; fringes greyish white mixed with greyish green, darker between veins; discal spot small, stellate, pale-centered, ringed blackish brown. Hindwing: Medial line slightly wavy, indistinct, distal from discal spot; postmedial line indistinct, appearing as spots on veins; discal spot, submarginal, terminal lines, fringes similar to those of forewing. Venter greyish white, transverse lines greyish brown, terminal band of hindwing indistinct, discal spot large and distinct, costa of forewing pale yellowish brown, diffused with flecks. Abdomen. Pairs of black dorsal spots on first to sixth abdominal segments. Spots on first abdominal segment small, on second to sixth segments relatively large, closer together. First abdominal segment pale grey, remaining segments pale green. Third sternite of male abdomen without setal patch. Eighth sternite of male abdomen with tapered cleft, apical sclerotized processes rounded. Male genitalia. Uncus rounded terminally, length equal to basal width, with a pair of short lateral processes. Gnathos with median process rounded terminally, four-fifths length of uncus. Valva relatively narrow, about three times as long as basal width; costa sclerotized, angled dorsally medially, expanded, bearing large area of long setae terminally; extension of sacculus short digitiform, broadened distally, apex with several tiny spines, directed to medially; ampulla absent. Saccus semicircular, about one-half length of basal width, with longitudinal arris apically in anterior half. Juxta with anterior margin concaved medially, about one and half times as long as basal width. Coremata developed. Aedeagus sclerotized anteriorly, with one large, another tiny sclerotized spines posteriorly. Vesica without cornuti.

Diagnosis. The external characters of this species are similar to those of O. sinensium , but can be distinguished by the following differences: the hindwing medial line is not close to the discal spot; the cleft of the eighth sternite of the male abdomen is broader than that of O. sinensium , and the sclerotized processes are rounded, but square in O. sinensium . In the male genitalia, the lateral processes of the uncus are more acute distally; the extension of the sacculus is more broadened distally; the anterior half of the juxta is short and not so markedly narrowed; the aedeagus has one large and apical tiny posterior spines, whereas, O. sinensium has two tiny spines.

Material examined. Holotype ɗ, CHINA: Hainan: Wuzhishan, Shuiman, 900 m, 1.IV.2008, coll. Lang Songyun ( IZCAS). Paratypes, 1ɗ, Hainan: Ledong, Jianfengling, Tianchi, 982 m, 26.XI.2008, coll. Li Jing ( IZCAS); 1ɗ, Hainan: Yinggeling, Ziranbaohuqu, 950–1000 m, 27.VIII–12.IX.2005, coll. Liu Chunxiang ( IZCAS).

Etymology. The specific name is from the Latin word dissitus, which means distant. This refers to the distance between the hindwing medial line and the distal spot.

Distribution. China (Hainan).

Figures

FIGURES 13 – 30. Adults of Ophthalmitis, habitus. 13 – 14. O. dissita sp. nov., holotype. 13, male, upperside; 14, male, underside. 15 – 18. O. irrorataria. 15, male, upperside; 16, male, underside; 17, female, upperside; 18, female, underside; 19 – 22. O. herbidaria. 19, male, upperside; 20, male, underside; 21, female, upperside; 22, female, underside; 23 – 26. O. siniherbida. 23, male, upperside; 24, male, underside; 25, female, upperside; 26, female, underside; 27 – 30. O. cordularia. 27, male, upperside; 28, male underside; 29, female, upperside; 30, female, underside. Scale bar = 1 cm.

FIGURES 45 – 50. Male genitalia of Ophthalmitis. 45, O. albosignaria albosignaria; 46, O. pertusaria; 47, O. sinensium; 48, O. dissita sp. nov.; 49, O. irrorataria; 50, O. herbidaria. Scale bar = 1 mm.

FIGURES 57 – 68. Aedeagus of Ophthalmitis. 57, O. albosignaria albosignaria; 58, O. pertusaria; 59, O. sinensium; 60, O. dissita sp. nov.; 61, O. irrorataria; 62, O. herbidaria; 63, O. siniherbida; 64, O. cordularia; 65, O. longiprocessa sp. nov.; 66, O. brevispina sp. nov.; 67, O. tumefacta sp. nov.; 68, O. xanthypochlora. Scale bar = 1 mm.

FIGURES 69 – 80. Sternite 8 of male abdomen of Ophthalmitis. 69, O. albosignaria albosignaria; 70, O. pertusaria; 71, O. sinensium; 72, O. dissita sp. nov.; 73, O. irrorataria; 74, O. herbidaria; 75, O. siniherbida; 76, O. cordularia; 77, O. longiprocessa sp. nov.; 78, O. brevispina sp. nov.; 79, O. tumefacta sp. nov.; 80, O. xanthypochlora. Scale bar = 1 mm.