\ 



ENTOMOLOGICAL NEWS 



AXD 



PROCEEDLXGS OF THE ENTOMOLOGICAL SECTION 



THE ACADEMY OF XATUR.-VL SCIENCES, PHILADELPHIA. 



Vol. XXXI. MARCH. 1920. Xo 3- 



CONTENTS 



McAtee — Specific. Subspecific and \'ari- Braun — Xew 'Species of Lyonetiidae 



etal Categories of Insects and the j (Microlepidoptera) 76 



Naming of Them (concL) 61 j Smith — The Bembicine Wasps of North 



Cresson — Descriptions of New North ' Carolina (Hym.) 80 



American Acalyptrate Diptera — II. j Editorial — A Fifty Years' Editorship 



(Tr>-petidae. Sapromyzidae) 65 and Arthropods 83 



Weiss — Mordella marginata Melsh., 1 Williams — Pseudagenia capella nom. 



Bred from Fungus (Coleop.) 67 



Crawford — Notes on Psyllidae (Homop- 



tera) 69 



Alexander — ^L^ndescribed Tipulidae Col- 

 lected by Mr. H. S. Parish in Brazil 

 (Dipt.) 70 



nov. (Hym.. Psammocharidae) . . . . 84 



Entomological Literature 84 



Obituarj- — George Macloskie 89 



Jordan — Seitz : Palaearctic Geometri- 



dae 90 



Specific, Subspecific and Varietal Categories of 

 Insects and the Naming of them. 



By W. L. McAtee, U. S. Biological Survey, Washington, D. C. 



(Continued from page 55). 



In naming taxonomic conceptions subordinate to the spec- 

 ies it is important to bear in mind that they may not perma- 

 nently be regarded of the same rank as that in which originally 

 described. Thus a form first designated as a species mav 

 later be shown to be a subspecies ; a variety may be found to 

 be a subspecies, or a form assigned to either of these cate- 

 gories may later be given specific rank*. Precautions should 



*The frequency of this occurrence should help students to realize to 

 what an extent taxonomy deals with concepts rather than entities, that 

 while the things may not change in measurable time, concepts of them 

 certainly do, and that the present phase of the concepts is no more to be. 

 seriously accepted as fixed than were the half-centun,- or cer.tur>- old views 

 now discarded. Certainly a present change in an admittedly ever-chang- 

 ing concept should not inspire deep umbrage, especially as in the last 



61 



