186 THE CANADIAN ENTOMOLOGIST. 



cal. Prof. Brauer has given a new description in Neur. Anstriaca. The 

 species is a very rare one, found, besides in Austria and Hesse, fifty years 

 ago in Silesia and Hungary. The discovery of the larva in the Prater, 

 near Vienna, on trees, and the raising of the imago by Prof. Brauer is 

 one of his numerous splendid discoveries. He made for the species the 

 new genus Dendroleon. Both species are recorded as Glcnurus Hag. in 

 my Synopsis Hemerob. This genus was proposed exactly at the same 

 time with Dendroleon, but the latter one should be retained for those species. 



The N. American species and the European are very similar, but the 

 rarity of both prevented the exact knowledge of their differences. I have 

 seen of the European species only three specimens, one from the Rhein 

 Mus. Berol., one from Austria, and one from Hungary in Frivaldsky's 

 collection. The latter one I have compared carefully with Burmeister's 

 types in Winthem's collection in 1852. As since this time nothing is 

 published about the differences of both species, I give here my manu- 

 script notes. 



D. panther inum is of the same size, but a little more robust ; pro- 

 thorax plain-luteous, without the fine black granulation of D. obsoletum ; 

 a large black dorsal band on metathorax and basal segment of abdomen ; 

 D. obsoletum has mesothorax, metathorax and basal segment above in 

 the middle only with a very dilute blackish color. Abdomen with seg- 

 ment second and third black, the fourth and fifth above light brown ; D. 

 obsoletum has on all segments, or at least on second and third, a transver- 

 sal yellow band. Legs yellowish brown ; fore legs with a ring around 

 the apex of femur, middle of tibiae, and third and fourth joint of tarsus 

 all black ; middle and hind legs with a broad dark ring before the middle 

 of femur, which is externally nearly connected with the apical ring ; the 

 apex of tibia and a median ring, which is wanting on hind legs, black. 

 The coloration of D. obsoletum is very different, as stated in the descrip- 

 tion. Wings with the venation less close, the areoles larger ; veins in 

 both wings more fuscous ; front wings in the basal third of the space 

 between fourth and fifth longitudinal vein with four fuscous spots, the 

 most apical one longest, about 3 mm. (wanting on D. obsoletum) ; the 

 ocellate spot on the hind margin is complete (D. obsoletum wants always 

 the apical half of the iris around the spot) ; hind wings with a quad- 

 rangular (round in D. obsol.) spot near the costa, and ring of spots on 

 the apex of hind margin. 



