255*6 183. Drosophila. 



Halteres &? pedes i.allitle llavi. — Valile affinis K similis D. 



obscura n:o 4, seil thorace foile nonnihil (liluliore, fiCalariim 



j)laga costali poslica perspiciia diversa. 

 Obs. Meigen &C Macqvart suam D. tristein "totam testaceam i 



nititlam, abtlominis aj^ice solo nigro, ic^ iiedihiis ohscure flavis" ] 



(lescrihunl, uiule synoiiyma eonim mihi tluhia vitlentiir. 

 ObSt Suh nomine: "Dr. trislis Fall." specimen masculiim e 



Dania a D. Stager obtinui, tiuod ad Dr. spurcam n:o 5 



retuli. 



10. D. fuscimana: flavo-leslacea, epislomale albido; 

 pedibus pallide flavis; abdotnine nigio; ihoracis linca dor- 

 sali pedibusqiie anlicis fuscis; alis hyalinis, nervis: cosla- 

 li alro, Iransversis perspicue approximalis, segmenlo ner- 

 vi longitudinalis 4:li secuudo lertio Iriplo brcviori. ^. 

 (Long. vix I lin.). 



Mcig. Dipt. C. 87. n? Zelt. Ins. Lapp. 176. 6. $. 



Hab. in Lapponia meridioiiali Umensi rarissimo; sci- 

 licet in succo cxsudanle Belula; albae ad novaculum Nor- 

 danas in paroecia Fiederica d. .31 Jul. 1832 a D. Dahl- 

 honi, 6c in fungis ad novaculum Niistansjo in paroecia 

 Wilhelmina d. 13 Jul. a me, capta. In Scandinavia meri- 

 dionali non observata, qiianlum noverim. 



c5". Parva, angusta, suhoiiaca, testacea, setis ordinariis nigris. 

 Antenna! Iireviusculje, seta nigra. Eiiistoma flavo-allium , seta 

 utriiHiue myslacina nigra. Os relracliim. Ociili majusculi, ro- 

 tundi, in viva rnfi. Thorax liiiea tlorsali ferriiginea suhohsole- 

 ta. Ahdomen angusttim, nigriim, hasi piceum. AIje liyalinse, 

 nervis leniiilius iiallidis, coslali atro. Ad aiiicem nervi 2:di 

 longiliidiiialis unilira ohsolela. Nervi transversi ajierte apjiroxi- 

 mati , horiim ortliiiariiis sat longe a margine distans , medius 

 paullo iiost aiiicem aiixiliaris hrevis tluclus. Segmentiim nervi 

 longitudinalis 4:ti seciindiim lertio circiler 2^ hrevius, at seg- 



