75. Doros. 693 



Sproge; in Uplandia ad Holmiam, D. Wahlberg^ in 

 Dania , D. Dahlbom. 



$% Priori brevior, sed latior niger. Caput flavum , anten- 

 nis fiilvis, vertice (t- genis nigris. Frons in $ late trian- 

 gularis liiieola & vertice angustato , nigris. Thoracis vitta 

 lateralis, macula pectoris & alia infra scutellum, in utro- 

 que sexu citrina. Scutelluni flavum , puncto utrinque nigro 

 6c umbra basali fusca. Abdonien fasciis 4 subsequalibus in 

 basi segmentoruni 2, 3, 4 A 5, albo-flavis, rectis, harum 

 l:nia late interrupta, ad marginem lateralem nonnihil latior ; 

 2:da ^ 3:tia anguste interruptae, 4:tasubarcuata, sub segmeii- 

 to 4:to plerumque ad partem abscondita. Segmenta 2 ulti- 

 nia margine apicali seepissime etiam flava. Squamse nigrse ; 

 halteres pallidi. Alee cinerese, lineola in medio costse brun- 

 nea. Pedes flavi , coxis & trochanteribus nigris. 



Obs. Ci)lor capitis, scutelli & peduni in vivo Isete flavus I. 

 citrinus, in mortuo in fuhtim I. luteum pleruiuTjue inuta- 

 tur. Color fasciarum abdoininis pallide flavus post mortem 

 immutatus manet. — Synonymon Linncei dubium est , quia 

 Vir III. de sua Musca fettiva dicit: "Frons lineis Q per- 

 pendicularibus flavis; antennae nigroe, capite longiores, 

 subclavatae" ; quee iiotic in nostrum non quadrant. 



3. D. ornalns : nigor, capitc pedibnsque flavis,fc- 

 morum poslicoruni apicc libiarumque aunulo, fuscis; an- 

 lcnnis fulvis; llioracis villa ulrinque, sculelli apice, ab- 

 dominisque basi parum coarclali fasciis 4 iiilcrruplis, an- 

 licis niaculiformibus omnibus cilrinis; alis lineoia nigri- 

 canle; fronlc fcminae Iriangulari, villa obscura. (^?ji. (Long. 

 3^—4 lin.). 



Meig. Dipl. 7. 130. 3. Macq. BulT. 1. 550. 3. Syr- 

 phus Meig. Dij)!. 3. 298. 37. (^$. Sc(Bva fesliva Fall. 

 Syrph. 38. 3, Dcscripl. vaiiel.: "fascia abdominis piima 

 maculas iaterales Irigonas formanle*, ti- "genubus nigris.* 



