MECOPTERA FROM JAVA. 225 



NOTE XXVT. 



MECOPTERA AND PLANIPENNIA 

 COLLECTED IN JAVA BY EDWARD JACOBSON. 



ESBEN PETERSEN. 



(With 6 textfigures). 



MECOPTERA. 



Of this order a fine series was brought together, inclu- 

 ding several interesting species, one of which is new to 

 science. All the species belong to the family Panorpidae 

 and to the two genera Leptopanorpa Mac Lachlan and 

 Neopanorpa Weele. These two genera may be distinguished 

 from the other genera of the family by the following 

 characters : Wings elongate, very narrow at the base and gra- 

 dually broadened towards the apex. The anal veins very 

 short. In the forewing the 1st runs into the hind margin 

 before the origin of the radial sector. The S^'d very short. 

 Between 1st and 2o'l anal vein in the forewing only one cross 

 vein. In the forewing subcosta joins costa in the ptero- 

 stigmatical region. In the male the hind margin of 3''^ tergit 

 is produced into a slender, cylindrical prolongation, which 

 covers an elevation upon 4th tergit. 



Leptopanorpa may be known by the long and very 

 slender abdomen in the male. The abdomen is much longer 

 than the wings, 2"^ abdominal segment ') almost as long 



1) When Mac Lachlan (Trans. Ent. Soc. Lond. Vol. II, 1875, p. 188) 



states that the l»* abdominal segment in Leptopanorpa is very long, contrary 



to what takes place in all other genera of the Panorpidae, this statement is 



due to a misunderstanding. I saw the type specimen (d') of L. ritsemae la the 



Notes from the Leyden IMuseum, Vol. XXXV. 



15 



