244 ENTOMOLOGICAL NEWS. [Sept., 'o6 



be restored to the original form. To give some idea of the 

 disaster that will result from the interpretation of homonymy 

 which is prevalent in certain quarters,* I will cite some of the 

 Coleopterous names which would fall. 



Agraphus Schonh, 1834, not Agrapha Hubn., 1816. 



Amblychelia Say, 1834, " Amblychilus Fisch., 1813. 



Amphicerus Lee, 1861, " Amphiceras Gray, 1847. 



Aphorista Gohr., 1873, " Aphoristia Kaup., 1858. 



ApJastus Lee, 1859, " Aplasia Hubn., 1816, or Schaum, 1844. 



Arhopalus Serv., 1834, " Arhopala Boisd., 1832. 



Asemum Esch., 1830, " As emus Ranz., 1820. 



Atimia Hald., 1847, " Atimus Dejean. 



Chromalia Lee, 1862, " Chromalium Perty, 1852. 



Chrysophana Lee, 1859, " Chrysophanus Hubn., 1816. 



Coenonycha Horn., 1876, " Coenonica Kraatz, 1857. 



Colastus Erichs, 1843, u Colasles Hal., 1833. 



Conoecus Horn, " Conoeca Scott, 1865. 



Dromius Bon., 1813, u Drotnia Fabr., 1798. 



Euphoria Burm., 1842, " Euphorus Nees, 1834. 



Polyphylla Ha.rr., 1841, •' Polyphyllia, 2 and 9, 1833. 



In the case of the following, I do not know which has priority : 



Morio Latr., 1810 (Coleop.) and Morio Month, 1810 (Mollusca). 

 Cyllene Newman, 1840 (Coleop.) and Cyllene Gray, 1840 (Mollusca). 



Notes on Tanypus dyari. 



By Evelyn Groesbeeck Mitchell, Washington, D. C. 



This species evidently winters in the larval stage. The 

 earliest larvae which I have found were taken on March 4th 

 from a drinking tank for horses in Rock Creek Park, Washing- 

 ton, D. C. The tank consists of an iron pipe about three feet 

 in diameter and four deep, into which falls a stream of clear 

 spring water, continually running from a tap. The inside of 

 the tap was overgrown with a green alga in which the larvae 

 hide and on which they also feed. The larvae pupated the 

 evening of March 4th, and the imagos emerged on the 6th. 

 April 1 2th two batches of eggs were found at the tank. 



The larvae of this species are easily raised so long as there 

 are algae and euglena in the bottle and they are not in too light 



* For a discussion of this matter, see Palmer, Index Generum Mammalium, pp. 34-37. 



