PSEUDOSCYMNUS, A NEW GENUS OF ASIATIC 
SCYMNINI (COLEOPTERA: COCCINELLIDAE) * 
By Edward A. Chapin 
Museum of Comparative Zoology 
In the course of work on a report on the Coccinellidae of Micro- 
nesia, my attention was attracted by the figure of the antenna of 
Scymnus kurohime Miyatake and the figures of receptacula of unusual 
form of several species, mostly from Japan. Paratypes of S. kurohime 
were generously presented to me by Mr. M. Miyatake and a series 
of this species was found in a collection from Naha, Okinawa, made 
by Mr. N. L. H. Krauss. Mr. Miyatake also supplied, at my request, 
a series of S. hareja Ws. An analysis of the characters of these species 
shows that they form a group which is intermediate between Scymnus 
proper and Cryptogonus. It should be noted here that the eyes of 
Cryptogonus and its close relatives are sparsely set with fine erect 
setae, a character which has long been recognized as definitive of the 
Scymnini. 
When compared with Scymnus nigrinus Kugel. and Cryptogonus 
orbiculus (Gyll.), the respective type-species, one finds the characters 
of S. hareja and S. kurohime to be closer to Cryptogonus than to 
Scymnus. In Scymnus the antenna is of the usual coccinelline form 
and consists of eleven segments. The tarsus is also similar to the large 
majority of coccinellids in being composed of four segments. In 
Cryptogonus and Pseudoscymnus the antenna is very short and con- 
sists of nine segments and is of an unusual form for the family. 
The tarsus is truly three segmented, differing from those of most 
coccinellids. 
Genus Pseudoscymnus new genus 
Body form and size of Scymnus Kugelann, upper surface set with 
fine, short pubescence. Antenna nine-segmented ; basal segment stout, 
almost as wide at its widest part as long; second segment stout barrel- 
shaped, nearly equilateral, clearly separated from the basal; third 
through ninth segments forming a fusiform club, the third longer 
than wide, fourth through seventh wider than long, each wider than 
the preceding, eighth segment usually shorter than wide and slightly 
narrower than seventh, ninth segment a little more than half as 
*Ma?iuscript received by the editor March 30, 1962. 
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