NEW GENERA AND SPECIES OF MEGALOPTERA. 249 



NOTE XXIV. 

 NEW GENERA AND SPECIES OF MEGALOPTERA LATR. 



BT 



Dr. H. W. VAN DER WEELE. 



About 8 months ago I finished my monograph of the 

 Megaloptera (Sialidae) for the „Catalogue des Col- 

 lections Zoologiques du baron E. de Selys Longchamps." 

 Though the work is since ready for the press, it cannot 

 yet be printed. As there are many new genera and species 

 described in it and because other workers in this interesting 

 family might describe them before my monograph has been 

 published, I give here short descriptions of them in order 

 to secure their priority. 



This order of insects, separated from the other Neuroptera 

 and especially from the Planipennia under the name of 

 Megaloptera, contains two families: the primitive Sia- 

 lidae and the much higher specialised Raphidiidae. 



The first quoted family only contains more genera and 

 tribes and is divided in the following way: 



Three ocelli, fourth tarsal joint simple, not bilobed. Large 

 and mediocre forms. subfamily Corydalinae Davis. 



Ocelli wanting, fourth tarsal joint bilobed prominently. 

 Rather small forms. subfamily Sialidinae Davis. 



Subfam. Corydalinae. 



Male with a pair of app. sup. and infer. Antennae mo- 

 Notes from the Leyden Museum, "Vol XXX. 



17 



