402 



THE ENTOMOLOGIST. 



indistinct. Fringes pale brown, preceded by black dots at ends of 

 tbe veins. Under side whitish ; fore wings from base to postmedial 

 line dusky ; hind wings with blackish dot at end of cell, and a blackish 

 postmedial line ; the latter is slightly serrated and indented oppo- 

 site cell. 



Expanse, 26 millim. 



Collection number, 882. 



A specimen from Arizan (7300 ft.), September 14th, 1906. 



ab. obscura, nov. 



3' . General colour as in ruhrivena, but all markings are much 

 obscured and difficult to trace ; similar to the type on the under side. 



Collection number, 882 a. 



One male specimen from Arizan, September 27th, 1906. 



THE MACEO-LEPIDOPTERA OF THE WORLD.* 



The plan of this great work, which is appearing both in 

 German and in English, is as follows. There are to be four 

 principal parts or sections, dealing respectively with the fauna 

 of the Palasarctic, Indo-Australian, iEthiopian, and American 

 regions, and each part, again, will comprise four volumes, the 

 first, third, and fourth of each series covering the Rhopalocera, 

 Noctuidse, and Geometridse, the second the much more hetero- 

 geneous residue — most of which have figured as "Bombyces" 

 in tbe older entomological literature. Thus Dr. Seitz hopes, in 

 sixteen volumes (some of which we fear may prove rather 

 unmanageably bulky), to provide a complete account of the 

 known Macro-Lepidoptera, with figures of nearly all the principal 

 forms. 



Numerous of the volumes are in progress, several (especially 

 on the Butterflies) well advanced ; while we have before us the 

 completed first volume, the Pahearctic Pihopalocera, bound in two 

 parts, the letterpress and the plates separately, and thus of a 

 convenient size for handling. The only main group on which 

 nothing has yet appeared is the Geometridse, and we learn that 

 vol. iv. (Palfearctic Geometrae) is now in preparation, will com- 

 mence to appear at the beginning of 1912, and will be published 

 rapidly. 



Any who look for a complete biological or morphological 

 work will, of course, not find it here. Even if the time is ripe 

 for such, it is difficult to conceive of any at present workable 

 plan whereby it could be carried out. At the same time, it is 

 only justice to Dr. Seitz and his numerous collaborators to 

 emphasize the fact that they are providing much more than the 



* Edited by Dr. A. Seitz. Stuttgart : Alfred Kernen, Verlag. Poststrasse 7. 



