66 PROCEEDINGS OF THE ACADEMY OF [Part I 



resented in the Amazonian region, where it must be considered as 

 being one of the most characteristic Tipulid genera, 



Polymera conjuncta Alexander. 



1913. Polymera conjuncta Alexander, Proc. U. S. Nat. Mus., vol. 44, 

 p. 529. 



The types were taken at Igarape Assii, Brazil, February 4, 1912 



by H. S. Parish. 



Polymera conjunctoides Alexander. 



1920. Polymera conjunctoides Alexander, Ent. News, vol. 31, pp. 74, 75. 



Itacoatiara, Brazil, October 16, 1919 (H. S. Parish); Type. 

 Manaos, Brazil, October 31, 1919 (H. S. Parish). 

 Napo River, Peru, June 9-15, 1920 (H. S. Parish). 



Polymera parish! Alexander. 



1920. Polymera parishi Alexander, Can. Ent., vol. 52, pp. 143, 144. 



Manaos, Brazil, October 31-November 4, 1919 (H. S. Parish). 

 The above three species belong to the subgenus Polijmerodes 

 Alexander, in which the tibial spurs are quite lacking. 



Polymera pleuralis Alexander. 



1913. Polymera pleuralis Alexander, Proc. U. S. Nat. Mus., vol. 44, pp. 

 528, 529. 



Igarape Assii, Brazil, January 19-February 7, 1912 (H. S. Par- 

 ish) ; Types. 

 Yurimaguas, Peru, April 1, 1920 (H. S. Parish). 



Polymera obscm'a Macquart. 



1S3S. Polymera obscura Macquart, Dipt. Exot., Tome 1, pt. 1, p. 65. 



Igarape Assu, Brazil, January 19-February 4, 1912 (H. S. Parish). 

 Itacoatiara, Brazil, October 12-22, 1919 (H. S. Parish). 

 Teffe, Brazil, December 4-27, 1919 (H. S. Parish). 

 Iquitos, Peru, May 18, 1920 (H. S. Parish). 

 Yurimaguas, Peru, April 17, 1920 (H. S. Parish). 



Polymera thoracica Alexander. 



1913. Polymera thoracica Alexander, Proc. U. S. Nat. Mus., vol. 44, pp. 

 533, 534. 



Known only from the type locality, Igarape Assu, Brazil, Feb- 

 ruary 7, 1912 (H. S. Parish). 



Polymera hirticornis (Fabricius) 



1805. Chironomus hirticornis Fabricius, Syst. Antliat., p. 46. 



Igarape Assu, Brazil, January 23, 1912 (H. S. Parish). 

 Obidos, Brazil, September 10, 1919 (H. S. Parish). 



