Sept.-Dcc, i9i8.] LeNG : CHANGES IN LiST OF CoLEOPTERA. 207 



Cis piisilliis Dury, 1917, is preoccupied by C. piisillits Gorham, 

 1898 (Proc. Zocil. Soc. Lond., p. 330), and may be clianged to C. diiiic- 

 dincnsis n.m. Cis bicolor Dury, 1917, is also preoccupied by C. bi- 

 color Sharp, 1879 (Trans. Ent. Soc. Lond., ]). 93), and may be changed 

 to (". dnryi n.m. 



Aphodius V. nigcr Ckll., 1888, is preoccupied by A. nigcr Panz, 

 1797 (Faun. Germ., 2,7, i)? and may be changed to cockerclli n.m. 



Dichelonyx Harris (Mass. Agl. Repository, X, 1826, p. 6 (note)) 

 antedates Dichelonycha Kirby, 1837. The name has not been used 

 because no description accompanies it ; but as Dr. Harris designated 

 linearis as its type, it must be valid under International Rules of No- 

 menclature. 



The genus Adctus must be added to our fauna as a species, at 

 present unidentified, occurs in Lower California. 



The figure (No. 125) of Anaglyptus compressicornis given by 

 Gory shows the antennae with very short second joint. All the figures 

 on the plate indicate that the artist was careful in representing the 

 relative length of the antennal joints. Therefore it seems probable 

 that it is our Microdytiis gibbulus that is a synonym of Gory's species 

 and not M. gazelhdus. 



The figure of (CEdionychisf) litiirata given by Olivier, p. 707, 

 seems, from its outline and peculiar maculation, to represent a species 

 of Ora. 



In Lcptinotarsa nine names proposed by Tower, 1906 (Investiga- 

 tion, etc., of Leptinotarsa), and defined by figures or description are 

 included under L. dcccinlincata. They cannot be dismissed as labo- 

 ratory products for outdoor localities are given for seven. The name 

 selected for one (torinosa) is preoccupied. 



Pachybrachys instabilis Fall, 1915, is preoccupied by P. instabilis 

 Weise, 1887 (D. E. Z., XXXI., p. 330), and has been changed to "P. 

 hector n.m." by Mr. Fall in Ent. News. 



Leptinotarsa vielanothorax does not occur in the United States. 

 The specimen so called in Geo. H. Horn's collection has been pro- 

 nounced simply a discolored lo-lineata by Dr. Tower. 



Leptinotarsa violascens, as identified by the late Frederick Knab, 

 occurs in Arizona. This species, with rubiginosa, behrcnsi, haldcmani, 

 dahlbomi and lineolata, may belong to the genus Myocoryna. 



The group of species related to what we have heretofore called 



