9- Space between vertex and front (frons) com- 

 pletely smooth and shining, without any trace of keels. 

 Ribs of hemelytra strongly granulate. (These characters 

 are also, though not. quite so pronounced, due to the 

 male; otherwise the keels of front and vertex are well 

 defined). 



Genotype: ParalibunnaJacobsenin.s\). Type local- 

 ity: Iselingen near Vordingborg, Denmark. Discovered 

 by O. Jacobsen. 



Paraliburnia Jacobsen! //. sp. 

 (Fig. 1). A large and very ro- 

 bust species, larger than any of 

 the hitherto known species of 

 Libiirnia from Middle and North- 

 ern Europe (the shortwinged 9 is 

 7-A">/i- m ^^ \^2&i as large as the largest 99 



Pj^ I of our 5//rö/;zß-species). 



PamUbumiaJacobsenix^.sX,. 0^°""^ ^^lour SOrdid-yellow 



a. Genital segment of male, from with morC Or IcSS rufeSCCUt tiuge. 



below b. Same, from the side. Abdomcu of .< blackish or browu- 



c. Last dorsal segment (with anal ^ 



tube and anal style) of male. ish, iucludiug genital Segment, 

 Much enlarged. j-j^^ ^j^^j ^^j-jg ^^^ apeHura pOSÜCÜ 



partly whitish yellow; also spots on the dorsal part of 

 abdomen lighter; the visible tips of the genital styles clear 

 yellow. Abdomen of 9 dorsally pale. 



Genital styles at apex coadunate. Apex of front (at 

 base of clypeus) in both sexes with an obtuse-angled 

 incision. Front rather broad, in the male widest between 

 lower edge of the eyes, in the female widest between 

 eyes and clypeus. Legs long and slender; especially so 

 the first joint of hind tarsi. Long. 3,5 (,5) - 4,2 (9) mm. 



Apparently climatically dimorphous. The type speci- 

 mens, one male and one female, are brachypterous; both 

 have the wing covers (tegmina, hemelytra) a little shorter 

 than abdomen. 



Type locality as noted above (O. Jacobsen leg.). 



