A GA TH I DIODES PORTEVIN, 
NEW SYNONYM OF STETHOLIODES FALL 
(COLEOPTERA: LEIODIDAE: ANISOTOMINI)* 
By Alfred F. Newton, Jr. 
Museum of Comparative Zoology 
Harvard University, Cambridge, Mass. 02138 
Examination of type material of many obscure genera of Leiodi- 
dae for a work in preparation on the suprageneric classification of 
the family has revealed a new generic synonymy in the tribe Aniso- 
tomini (=Agathidiini). 
Stetholiodes Fall, described for a single species S. laticollis Fall 
from Indiana, USA (Fall 1910), has recently been redescribed by 
Wheeler ( 1981) who discussed the close relationship of the genus to 
Agathidiuni Panzer. 
The genus Agathodes Portevin was described for a single species 
A. striatipenne Portevin from Kashmir, India (Portevin 1926). Port- 
evin later (1944) proposed the new name Agathidiodes to replace 
Agathodes Portevin 1926 (not Guenee 1854). He considered Aga- 
thidiodes to be closely related to Agathidiuni. 
Stetholiodes and Agathidiodes are each known only from the 
holotype male of the type species. Direct comparison of these two 
specimens (examined dry with a dissecting microscope and on tem- 
porary slides in lactophenol with a compound microscope) shows 
that the two species are extremely similar in all characteristics that 
have been used at the generic and subgeneric level in Anisotomini. 1 
therefore propose the following synonymy: 
Stetholiodes Fall 
= Agathidiodes Portevin, new synonymy 
= Agathodes Portevin (not Guenee) 
The two included species, Stetholiodes laticollis Fall and S. stria- 
tipennis (Portevin) (new combination), show slight differences in 
shape, sculpture, male secondary sexual characters and the shape of 
* Manuscript received by the editor May 12, 1982 
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