PRIONOTA NIGRICEPS. Ö 



specimen the abdomen is broken off). Legs reddish-yellow ; 

 the tips of the femora black ; tibiae infuscated towards the 

 end ; tarsi fuscous. Halteres reddish-yellow with their knob 

 brown. Wings with a brown tinge and still darker stigma ; 

 the centre of most of the cells lighter. 

 A pair from Java (Kuhl). 



13. Megistocera fuscana., Wied. 



Nematocera fuscana , Wied. Dipt. ex. I. 29 ; — Megis- 

 tocera fuscana, Wied. Auss. Zweifl. I. 55. 1; Macq. Suit, 

 a Buff'on, Dipt. I, 114. 2. pi. 2, f. 15 ; id. Dipt. ex. Supp. 

 1. 18. 2. pi. 2, f. 4. 



In the Leyden Museum are two specimens , one from 

 Java (Macklot), the other from Halmaheira (Bernstein), 

 which I consider to belong to this species, though the 

 description of Wiedemann does not agree in all points. 

 The colour, which he calls »gemsleder-braunlich", in these 

 specimens is rather pale ferruginous , the brown longitu- 

 dinal stripes on the thorax, mentioned by him, are only 

 faintly indicated. 



Macquart has already remarked that Wiedemann was 

 mistaken in considering his specimen , which had exceed- 

 ingly long antennae, a female, for, in the genus Me- 

 gistocera this is exclusively a character of the male. The 

 two above mentioned specimens of the Leyden Museum 

 are also males ; in the one from Java the antennae are 

 present, but the abdomen is broken off; in the one from 

 Halmaheira the contrary is the case. It will be easily 

 understood , that insects of such tender structure do not 

 often reach us in good condition. 



The first joint of the antennae is cylindrical, very thick 

 and as long as the face; the second joint is short and 

 knotty; then follows an extremely long, hairlike flagel- 

 lum , the three or four first joints of which only are set 

 off by a rather inconspicuous knot. The head and thorax 

 have a dense and rather long pilosity. The abdomen is 



Notes fvom tlie Leyden Mlixseum, Vol. VII. 



