90 PROCEEDINGS OF THE ACADEMY OF [Part I 



process of atrophy, such being all the veins beyond cell 1st Mi except 

 /?4+5; most of the veins distad of the cord are very weak and entirely 

 without macrotrichiae. 



Habitat. — Brazil. 



Holotype, Sex", Teffe, December 26, 1919 (H. S. Parish). 



Genus TOXORHINA Loew. 

 1851. Toxorhina Loew, Linnaea Entomol., Bd. 5, p. 400. 



Toxorhina is a very characteristic genus in the Amazonian fauna. 

 There has been some attempt made to restrict the name Toxorhina 

 Loew to the species of the genus that we call Elephajitomyia Osten 

 Sacken. The basis for this reference consists in a preliminary paper 

 (Bernst. und Bernst.-fauna, 1850) by Loew in which the genus 

 Toxorhina is briefly characterized and keyed and three species be- 

 longing to it are mentioned but not described. There are at least 

 three genera to which Loew's diagnosis would apply and his genus 

 would be unrecognizable were it not for a more detailed account 

 with figures that appeared in 1851, as cited above. In this paper, 

 in addition to the three amber species which are briefly discussed 

 and figured, there appears in this paper a full description, with many 

 figures, of the recent T. fragilis Loew of Porto Rico, which species 

 Cpquillett selected as type of Toxorhina in 1910. In the opinion of 

 the writer, the 1850 name Toxorhina has no more status than the 

 famous 1800 names of Meigen, since it must depend entirely on the 

 1851 paper for its accurate diagnosis and recognition. If this latter 

 fact is admitted then there can be no valid objection against select- 

 ing any of the species included in this paper as type as was done 

 by Coquillett. Unless further and more convincing arguments are 

 brought forth, the writer will follow the generic concepts as advo- 

 cated by Osten Sacken and other later students of the Tipulidae. 



It has long been held that Elephantomyia and Toxorhina are 

 closely alHed. The former genus possesses small but distinct tibial 

 spurs which appear to be quite lacking in the species of Toxorhina. 

 For the time being, at least, the writer is referring Toxorhina to the 

 Eriopterini. The discovery of the immature stages is very de- 

 sirable. 



Toxorhina brasiliensis (West wood) 



1835. Li)n.)tobiorhynchus brasiliensis Westwood, Ann. Soc. Ent. Franco, 

 Tome 4, p. 683. 



Itacoatiara, Brazil, October 16-21, 1919 (H. S. Parish). 

 Teffe, Brazil, December 22-27, 1919 (H. S. Parish). 



