Sirindhornia sp.
Creators: name: Muadsub, Sopita
name: Pinkaew, Nantasak
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Tortricidae
Sirindhornia

description: Sirindhornia sp.
Figures 1I–J, 3G, 5C
Diagnosis. Sirindhornia sp. shares with S. bifida a forewing pattern with large and confluent black spots in the basal half, diagonally connecting the base and the orange distal part, wide and strongly interconnected black lines in the distal half, and a black line from middle of costa straight to below the notch then downcurved parallel to the termen; but Sirindhornia sp. is distinguished by black scales anteriorly on the tip of the labial palpus, by a distally curved costa, the absence of white scales at the notch below apex, and much darker hindwings. The spinulose sterigma without projecting lobes, the small and membranous ostium, and the unequal-sized signa differ from all other known Sirindhornia species.
Description. Head: As described for genus (Fig. 1I–J), with anterior face of third segment of labial palpus with very narrow line of black scales only at tip. Antenna with some white-brown scales on scape and pedicel.
Thorax: Tegulae white with large black spot distally and small spot on outer margin near base. Forewing length 4.8 mm in female (n = 1) (Fig. 3G); basal 2/5 white, with black spots and sinuate lines connected to form irregular central circle and with few isolated small black dots along costa and dorsum; strigulae and marks along costa as for genus but black line from beyond middle of costa strong, straight then ending in vertical black band along middle of termen; notch without white mark; remainder of orange wing portion with wide, sinuate, strongly interconnected bands and few black spots. Fringe damaged, present as orange basal line along termen. Underside of forewing as for genus but with small paler spot at notch. Hindwing blackish, somewhat paler towards base, with orange band along termen from apex to CuA 1, and with orange patch near center. Fringe damaged, apparently as for genus, black basal line present. Underside as for genus, with two longitudinal, triangular greyish orange patches medially, not reaching to termen.
Abdomen: Female genitalia (Fig. 5C) with papillae anales and tergum VIII as described for genus; sterigma a large flat patch of dense spinules; entrance to ostium small, membranous, beyond moderately concave posterior margin of weakly sclerotized sternum VII; without colliculum; ductus bursae long and very narrow, slightly wider near ostium; ductus seminalis not preserved; corpus bursae with two large blade-shaped unequal signa, one triangular and the other longer with a straight distal edge, narrowest in middle.
Specimens examined: 1♀, Thailand, Trat Province, Trat Agroforestry R. St., 12°23'43"N 102°40'32"E, ca 30 m, 18–19 Aug 2012, N. Pinkaew, np 5325, ♀ genitalia slide NP 1785. Deposited in KKIC.
Distribution. Thailand.
Remarks. This single female was collected in the rainy season in the agroforestry ecosystem of Trat Agroforestry Research and Training Station. It has the same forewing wing pattern as S. bifida, known from a single male from the same locality, but there are sufficient differences to doubt that they are the two sexes of the same species. However, we refrain from formally naming a single female.
description: Published as part of Muadsub, Sopita & Pinkaew, Nantasak, 2014, Sirindhornia Pinkaew and Muadsub (Lepidoptera: Tortricidae), a new enarmoniine genus from Thailand, pp. 53-63 in Zootaxa 3869 (1) on pages 62-63, DOI: 10.11646/zootaxa.3869.1.5, http://zenodo.org/record/4930835