SPECIES OF THE AM AT A ( SYNTOMIS ) 
PFEIFFERAE GROUP 
(LEPIDOPTERA: CTENUCHIDAE) 1 
By Nicholas S. Obraztsov 
Sea Cliff, New York 
This paper deals with a small group of moths, closely 
related to Amata ( Syntomis ) pfeifferae (Moore) and oc- 
curring in Borneo, Sumatra and Java. For this study I 
have examined the collections of the Rijksmuseum van 
Natuurlijke Historie (Leiden, The Netherlands) and the 
Museum of Comparative Zoology at Harvard College. At 
first sight, the species of this group give the impression of 
being merely individual forms of a single species, and this 
similarity gave Hampson (1898) occasion to consider 
Amata ( Syntomis ) acuminata (Snell.) a synonym of 
pfeifferae. To avoid further misidentification, the present 
paper describes the most important characters of the three 
species already known and one new one. 
The author acknowledges with thanks the cooperation 
of Dr. A. N. Diakonoff and Dr. P. J. Darlington, Jr., in 
placing the materials of the above-mentioned museums at 
his disposal and thanks to Dr. W. L. Brown, Jr., for read- 
ing the English text of the manuscript. 
Amata ( Syntomis ) pfeifferae (Moore) 
Fig. 1 
Syntomis pfeifferae Moore (& Horrfield), 1859, Cat. 
Lep. Ins. East India House, Vol. 2, (1858-59), p. 324; 
Moore, 1859, Proc. Zool. Soc. London, p. 198, pi. 60, fig. 5; 
Walker, 1864, List Spec. Lep. Ins. B. M., pars 31, p. 64; 
Hampson, 1898, Cat. Lep. Phal., Vol. 1, p. 88; Snellen, 
1904, Tijdschr. v. Ent., Vol. 47, p. 55; Zerny, 1912, Wag- 
ner’s Lep. Cat., pars 7, p. 55; Seitz, 1913, Gross-Schm. 
Erde, Vol. 10, p. 78, pi. 11 f [figs. 4-5]. 
Published with a grant from the Museum of Comparative Zoology 
at Harvard College. 
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