xxxiii, '221 ENTOMOLOGICAL NEWS 281 



The University of Michigan-Williamson Expedition to Brazil. 



The Expedition made collections in the vicinity of Para (see the 

 XFAVS for October, page 244), August 1-10. On August 13, Mr. John 

 W. Strohm sailed from Para for New York, with a snake chest, another 

 box of reptiles, etc., one trunk solid with dragonflie*, a wooden chest 

 lull of unnecessary supplies and other impedimenta. Mr. Jesse H. 

 Williamson remained at Para until the morning of August 18, when 

 he took steamer for Rio de Janeiro. There was much cloudiness and 

 some heavy rain during their stay at Para and on August 17 Mr. Wil- 

 liamson wrote: "Weather seems to be getting worse here instead <>i' 

 better;" on August 8: "Here, as elsewhere on the trip, all say the 

 season is unusual." As to the Odonate fauna of Para he wrote (Aug. 

 1! ) : "M';st tli.ngs are the same as, or so similar that 1 detect no difference 

 from, the Rio Madeira specimens." On Aug. 8 the Odonata of the 

 Expedition were reckoned at 9029 specimens of 166 species. 



The Authorship of the Lepidoptera Described in the Encyclopedie 



Methodique, Vol. IX. 



A recent examination of the descriptions of Hesperiidae in this work 

 led me to the interesting discovery that the authorship of all the Lepi- 

 doptera should be attributed to Godart, and not to Latreille, as is com- 

 monly done. This was first disclosed in the footnote to Ilcspcria 

 yodari on page 722, and a reference to Latreille's introduction added 

 other evidence in support of the conclusion. 



The title page of the volume would lead one to expect joint author- 

 ship, at least, since it mentions Latreille as author with the assistance 

 of Godart, but the passages by Latreille \vhich are mentioned above 

 disclaim all responsibility for the descriptions of species and give full 

 credit to Godart* The pertinent lines of the introduction read thus : 

 "A 1'exception des generalites preliminaires, que je m'etois reservees, 

 cet article Papillon lui f Godart] est absolument propre ; et si la justice 

 ne me commandoit point cet aveu, ie ne craindrois point d'y met t re 

 mon nom." (With the exception of the preliminary general remarks, 

 which I had reserved for myself, this article on butterflies is absolutely 

 his own; and if justice did not command this acknowledgment I would 

 not fear to place my name here). Certainly this is definite enough 



*At the suggestion of the editor, Dr. P. P. Calvert, I am adding t he- 

 wording of the title page of the volume under discussion. It is as 

 follows : "Encyclopedie-Methodique Histoire Naturelle. Entomol. 

 ou Histoire Naturelle des Crustaces, des Arachnides et des Insectes.- 

 Par M. Latreille, Membre de I'lnstitut, Academic Royale des Sciences, 

 ctc . Tome Neuvieme Par M. Latreille, de 1' Academic des Science*, 

 et M. Godart, ancien Proviseur du Lycee de P.onn. etc. a Paris, 

 Chez Mme. Veuve a Gasse, lmprimeur-I.ihnr.re. Po ns, N T o. 



MDCCCXIX." A. W r . L. 



