List of Entomological Publications (Autobibliographie)
Ulrich PAUKSTADT & Laela Hayati PAUKSTADT


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Paukstadt, U. & Paukstadt, L. H. (2003): Das Samia kikibudiamini - Problem (Lepidoptera: Saturniidae). - Beiträge zur Kenntnis der wilden Seidenspinner (Wilhelmshaven), 1 (1): pp. 44-64; 4 col.-figs, 10 b/w-figs., 1 map.

The Samia kikibudiamini-Problem (Lepidoptera: Saturniidae)

Summary: This contribution to knowledge the wild silkmoths deals with the status of Samia yayukae PAUKSTADT, PEIGLER & PAUKSTADT, 1993 and of Samia kikibudiamini PAUKSTADT, PAUKSTADT & SUHARDJONO, 2002. Thus far yayukae sensu stricto is only known from the island of Flores, while kikibudiamini inhabits the island of Timor and the island of Alor off the northern coast of Timor, eastern Lesser Sunda Islands, Indonesia. The western and eastern limits of the ranges of yayukae and kikibudiamini remain unknown thus far. The recent treatment of kikibudiamini as a junior synonym of yayukae by Peigler & Naumann is considered by us being most unfortunate and not adequate based on scientific studies.

S. kikibudiamini was described after three male specimens from the island of Alor, eastern Lesser Sunda Islands, Indonesia in January 2002. We received two further males and two females in good quality from Alor collected in April 2003. Therefore we are able to describe and figure herein the hitherto unknown female of kikibudiamini from the island of Alor for the first time. Contrary to yayukae from Flores, the taxon kikibudiamini might inhabits niches with a micro climate of high humidity, which is present on the arid islands of Timor and Alor along streams only. The island of Flores has a prevailing more wet climate, than the islands further eastward in the Lesser Sunda Islands.

Description of the female of kikibudiamini (Alor): females smaller than those of yayukae (Flores), as already mentioned for the males. Length of forewings 62–65 mm (n = 2). Length/width of antennae ca. 9.5/3.2 mm and longest rami 1.8 mm. Habitus generally similar the male adults, but all wings more circular and outer margins more rounded. Contrary the outer margins of the hindwings in yayukae (Flores) are only weakly rounded. Forewing apices almost triangular rounded, similar as in Samia insularis (SNELLEN VAN VOLLENHOVEN, 1862). Those are almost rectangle pointed in yayukae (Flores), almost similar as in Samia peigleri NAUMANN & NÄSSIG, 1995. The shapes of the forewing apices in kikibudiamini and yayukae (Flores) are similar those of the appropriate males. Hindwing wider and particularly the hindwing tornus stronger rounded than in yayukae (Flores). Ground coloration variable grayish brown or anthracite brown. Occasionally are brown colored reared females from Timor present, which coloration resembles those of yayukae (Flores). Postmedian line thick, prominent, white with a rose-colored band of scales distally, in yayukae (Flores) a conspicuous reddish band of scales is present distally of the thin white line. Postmedian line almost straight and weakly distally curved at the crescents. In yayukae (Flores) the postmedian line is always strongly curved, particularly at the crescents. Contrary to yayukae (Flores) the crescents are not connected with the postmedian lines. Length/width of the eyespot 3.4 x 5.5 mm and in yayukae (Flores) 5.5 x 3.9 mm. S. yayukae shows an elongated eyespot, while the eyespot is shorter but broader in kikibudiamini. Forewing crescents small, 16.5 mm long with a hyaline area 14.3 mm long and 2.1–1.7 mm wide. Hindwing crescents with the proximal end always strongly hook-like curved, in yayukae (Flores) contrary to kikibudiamini always the distal end hook-like curved. Length over all 12.8 mm, each length of the “hook” 10.8 and 5.3 mm and the hyaline center 2.7–1.8 mm wide. Crescents distally and towards the costa surrounded by black to varying degree and towards the anal margin surrounded by yellow, black bordered. In yayukae (Flores) the black at the crescents is reduced and the area of brownish yellow scales is enlarged. The shapes of the crescents in kikibudiamini and yayukae (Flores) are similar those of the appropriate males. As already stated in the original description of kikibudiamini for the male specimens, the females of kikibudiamini and yayukae (Flores) are undoubtedly clearly morphological distinct.

Discussion: S. kikibudiamini is considered being clearly and consistent different from yayukae (Flores) in the habitus, the wing pattern and the coloration of the male and female adults, in the chorion surface structures, and in the male genitalia structures. The taxon kikibudiamini is considered being a good species and not at all a variation of yayukae (Flores) only, as noted by Peigler & Naumann in their 2003 revision of the genus Samia. The studies on kikibudiamini and yayukae by Peigler & Naumann are not adequate scientific based, no sufficient material from both ranges were before the authors for comparisons, and no dissections of yayukae (Flores) were made by the authors, therefore morphological differences in the adults, the genitalia structures, and the chorion surface structures were not observed. The differences between both taxa are considered being visible, consistent and significant enough to justify the description of kikibudiamini as a new species.