MONOGRAPH OF THE GENUS SAPERDA 9 



will be found to be unevenly developed in its relation to the others 

 possessed by the species. 



Other characters such as elytral form, shape of thorax and abdo- 

 men, etc., seem from our studies to have little if any constant value 

 in grouping the species, as, when they are used, species are brought 

 together that have very little direct affinity with each other. 



Bibliography 



1781 Fabricius, J. C. Sp. Ins. 1:230 (Genus erected) 



1787 Mantissa Ins. 1:147 (Genus characterized) 



1792 Ent. Syst. 1:307 (Genus characterized) 



1801 Syst. Eleu. 2:317 (Genus characterized) 



1854 Emmons, E. Nat. Hist. N. Y. Agric. 5:119 (Habits, injuries etc.) 

 1873 LeConte, J. L. Class. Coleopt. pt 2. Smithsonian Miscel. Coll. 

 265, p. 345-46 (Tribal characters) 



1873 New Sp. N. Am. Coleopt. pt 2. Smithsonian Miscel. Coll. 



264, p. 238-39 (Table of species) 



1874 LeBaron, William. Noxious and Beneficial Ins. 111. 4th Rep't, 



p. 158, 159 (Table for separation of genus, no species) 

 1877 Thomas, Cyrus. Noxious and Beneficial Ins. 111. 6th Rep't, p. 37 



(Larval characters of Lamiides) 

 1877 Provancher, L'abbe L. Faune Ent. Can. Coleopt., p. 632 (Genus and 



table of species) 



1883 LeConte, J. L. & Horn, G. H. Class. Coleopt. Smithsonian Miscel. 



Coll. 507, p. 331 (Characters of tribe) 



1884 Dimmock, George. Stand. Nat. Hist. 2:325 (Generic characters) 

 1896 Leng, C. W. & Hamilton, John. Am. Ent. Soc. Trans. 23:146-47 



(Table of species) 

 1898 Wickham, H. F. Can. Ent. 30:40-42 (Reproduces Dr Hamilton's 

 table of species given in Am. Ent. Soc. Trans. 23, notes on food 

 plants) 



Distribution. The genus is confined to the temperate parts of the 

 northern hemisphere. The distribution of some of the species is 

 somewhat erratic, and all but three American forms appear to have 

 originated in the East and occur in the State of New York. Our 

 common calcarata, found through the East and Middle 

 West, also occurs in Texas as well as the state of Washing- 

 ton, and has been recorded from intervening territory. On the 

 east coast tridentata has much the same range and is like- 

 wise found in Texas, but not in the northwest. O b 1 i q u a , c a n - 

 dida,cretata,fayi, vestita,discoidea, lateralis, 



