'20 i. Phytomyza. 2835 



innjiisctili roUiiidi. Tliorax if^ sciilelltim cinerea 1. scliistacea. 

 Alxloineii ova(o-ol)l«ngiim siilphiireiim, segmentis 2, 3, 4 &;^ 5 

 iii medio lioseos fascia lrn|ieziiia titrinqiie abbreviala, nigra, 

 vittain tlorsalem mediain latain in<-eqvalem forinante. Ovidii- 

 cliis longiliKline segmentoriim iiltiini fiC anleiieniillimi simiil 

 siimtoriim, liasi crassiis, apice coin|iressiis, loliis ater nilidti.s. 

 Alc-e cinereo-hyalina», iiervis longitii(linali!iiis 2 &;^ 3 i>ersiii- 

 ciiis, ante ajiicein, 3:tioqiie olisoleto in ajiice ala, exciirren- 

 liliiis. Haltercs allii. Pedes nigri, geniculis aHiidis. 



23. Ph. geniculata : nigricans, lliorace cinereo; ca- 

 pile gcniculisque albo-flavis; anlennis majusculis pcdi- 

 busquo nigris; alis liyalinis, nervis longilutlinalibus 2 d,- 

 3 perspicuis modice anle apicem, cfe 4:to obsolelo fere 

 in apice alse, excurrenlibus. (j^J. (Long. 4 lin.). 



Var. a. (;f$. abdomine nigro immaculalo. 



Macq. BufV. 2. 619. 18. Meig. Dipl. 7. 405. 39. (o 

 desgriplione Macqvarli Iransscripla). 



Var. b. (^5- abdomine nigro, in J* inrisuris omni- 

 um lenuissime margincque laterali summo flavidis, in '^ 

 cingulo anle apicem anguslo albido. 



Ph. laleralis Fall. Pbyloniyz. 3. 2. e parle. — Zell. 

 Ins. Lapp. 794. 8. e parte. 



Hab. var. a. dc b. promiscue in graminosis, foliis 

 frulicum cfec. , eliam in fencsliis replans, per Scandina- 

 viam Jun. — Sepl. passim, in copula ssepe deprehcnsa; 

 scilicel in Scania ad Lund, Fogeisang, Esperod cCc, non 

 raro; in Oslrogolhia ad Wadstena tfcc. , sat frcquens; in 

 Wermelandia ad Aras; in Lappoiiia Umeusi ad Lyckse- 

 le parce; in Norwegia ad Dowre (D. Bohemau), & ad 

 Alleidet Finmarkise, ipse; in Dania, D. StcBger. (E Fin- 

 landia a D. Sahiberg missa.). 



