2'i. Thereva. 201 



5. 77/. albipenuis: nigricans, undiquc albido-hirta ; 

 abdominis incisuris albidis; Ubiis melatarsisque testaccis; 

 alis albis, nervis late, indeterminate fuscedine cinctis. ^^^. 

 (Long. 21—3 lin.). 



Mcig. Dipt. 2. 119. 5. ^^4. Macq. ButF. 1. 118. 1. ^^^. 

 Var. b. (^. antennarum articulis 2 basalibus lotis, 

 lerlio basi, fenioribusque, obscure rufo-testaceis — forle 

 speciraen juvenile. 



Hab. in locis arenosis SueciiE meridionalis, 6 Jun. 

 — 28 Aug. , passim; in Scania ad Silfakra; Raflcn,Lom- 

 ma, Oslralorp, Esperod (tc, sat frequenter legi, var. b. 

 ad Lomma rarissime. 



5^5. Th, bipunctata valde affinis (t similis, seddifFert : pube- 

 scentia albidiore, maculis frontaiibus nigris in $ coniiatis, 

 alisque in ulroque sexu magis albis, fuscedineque nervorum 

 prccsertim in parte pusteriore alae magis dilatata interdum 

 interstitia tota vcrsus apiceni implente, ut tt stigniatc ni- 

 gru-fusco magis obscuriori. 



6. Th. fnsciiiervis: nigricans, grisco-hirta, thorace 

 cinereo-bivillalo; abdominis nigri incisuris albidis; tibiis 

 mctalarsisque teslaceis; alis albidis, nervis fuscedine dcler- 

 minate cinclis; antennarum arliculo ultimo rufescenlc. 

 i^. (Long. cT 3i, - $ 4 lin.). 



Alas: oculis in fronte connexis, abdoHiinis segmentorum niar- 



gine albo-cilia(is ; 

 Fein.: pauilo niajor, ocuiis distantibus, niacula niagna sub- 

 triangulari interstilium frontale in medio fere totum occu- 

 paute, atra nitidissima; thoracis vittis cinereis latiuribus ; 

 in copula. 



Zelt. Ins. Lappon. 521. 6. J$. 



Hab. in Finmarkiic Norve^-icaj inferalpinis, passim; 

 ad Alten, in silva ad Bossekop atque in monte subalpino 

 Skaaddavaara , 1 — 7 Aug., inveni in copula. — Eliam 



