108. Tachina. 1021 



14. 3Je/opia Macq. RufF. 2. 126. 13. T. 14. f. 13. J". 

 Meig. DipL T. 248. 2. 3Iusca tabiata Fabr. Anll. .304. 

 100. J. Tacli. argyrocephula Zell. Ins. Lapp. 635. '6. ^. 

 var. (exclus. synonym.). 



Hab. in planlis d- foliis frulicuni, locis aridis sabu- 

 losis, soli expositis, d: vallis ab Hymenoptcris perforalis, 

 per Scandinavianj, 20 Maj. — 17 Aug. , passim frequens, 

 in copula; scilicel in Scania vulgaris ; in Ostrogolhia 

 frequens; in Olandia cC; Gotllandia (ad Fardhem , Wani- 

 lingbo, Golhem, Olle Hau in Faron, dc), passim ; in Uplandia 

 ad Holmiam, D. Wahlberg; iu Medelpadia ad Kjallsta; 

 in Helsingia ad GlosbocC- Lofvik; in Botnia; in Lapponia 

 Umonsi ad Lycksele tfe Stensele, non raro; in Nord- 

 landia Norvcgica ad Bjorkvik, raro. Ad Hafniam passim. 

 I Valde agilis (fc inquiela , fere perpetuo in molu. 



I O?. Oblonga, ciiierasceiis. Frnns pitesertitn in o '«"iige pdrecla, iii 



iO aiitice argentea nitidissima, plernniqiie subintegra, interchiiH 

 per rimain angiistani nigram iiUerrMpta, ut iii T. argyrocephala 

 Ins. Lapp.; in 5 antice nigra, utrinque argenteo-niican.s ; 

 postice in utroqiie sexu' iiigra, opaca, setis haud validis 

 iitrinque bifariani positis, in $ aiitice subabbreviatis , in J 

 usqiie ad antennas dnctis. Series vibrissarum usque ad an- 

 tennarum radicem continuata. Antennee lincares, incumben- 

 tes in o longis.simee , os attingentcs, in $ paullo brevio- 

 res. Seta biarticulata , capillaris, vix ad medium incrassa- 

 ta. .\bdomen cunicum cinereum, segmentis Ijmo toto , 

 singuloque reliquorum maculia 3 trigonis, nigris. Segmenta 

 apice: \ & 1 seti.s in singulo 2 1. 4; 3 & 4 setis in singulo 

 circiter 8 — 10. Aise hyalinee. Nervi transversi: ordinarius 

 subperpendicularis, rectus pone medium areee insertus;me- 

 dius apici nervi aiixiliaris oppositus. .^rea apice aperta , 

 curvatura paullo flexa. Spinula costee nulla. Nervus long. 

 3:tius setulis 8 — 10 vix ad nervum transversum medium 

 cuntinuatis. Squamae albee, margine pailide flavicante. Hal- 



