636 64. Chrysotoicum. 



Mcig. Dipt. 3. 169. 3. t. 27. f. 6. ^. Aliilio arcuu- 



tus Fall. Syrpb. 5. 2. var. /5. '^. genuiiuim. 



Hab. in Osliogolbia rarissinie • specitnen typicuni 



Fallenianie descriplionis anle iTfullos annos atl Larkelorp 



inveni; ad Gusum, liolmiam cfc Olandiam eliam a D. 



Wuhlberg lcclum erit. 



$. A priuri, cui aiiiis similis, (lifTcrt : iiiagiiitii(line iionnihil 

 minore, abdoniine prcesertini paiillo angiistiore , corpore 

 glabriorc, anlennariim artictilis oninibus fcre «(jue longis , 

 scutclli maciila ccntrali minore, determinata , nigra , nec 

 bruDiica, abdomini.s segmento anali fere tofo flavo , iii medio 

 tantum linea bifurca atra , alar. nervo loiig. 4:to magis 

 flexo, (fc pcdibiis totis lutescentibus. Alaruui maciila co- 

 stalis fusca iii nostio speciniine vix ulla, sed iii regione 

 stigmatis punctum fuscum observatur. Femora antica ic 1 



, postica basi subinfuscata. 'ribiee omnes citrini coloris. 



4. C. arcuutum: lenuiler pubescens nigrum, tho- 

 racis maculis laleralibus, scutelli limbo lale, abdominis- 

 que cingulis 4 dtorsum arcualis, interruplis fiavis; ala- 

 rum cosla testacea, sligmale fusco, nervo long. 4:to cur- 

 valo; pedibus luleis^ anlcnnarum arliculis subajtjue longis. 

 cf$. (Long. 4.^ sa;pe fcre 5 lin.). 



Meig. Dipl. 3. 16.S. 2. l. 27. f. 7. §. Latr. Gcn. 4. 

 327. Macfj. Bufl'. 1. 489. 2, Zelt. Ins. Lapp. 588. 3. J^. 

 Lovv. Bemerk. p. 26. 1. Ent. Zeit. Stelt. 1841. 159. 3. 

 3Iusca Linn. Fn. 1806. De Geer Ins. 6. 125. T. 7. f. 14- 

 ^. 31ulio Fabr. Anll. 181. 3. Fall. Syrph. 5. 2. ^^. 



Hab. in lucorum floribus locis s;epe paludosis, per 

 Scandinaviam nieridionalem tt mediam , 16 Jun. — 24Sept., 

 haud raro; scilicet in Scania ubique copiose; in Blekingia, 

 D. v. Borck; in Sniolandia frequens; in Oslrogolhia vul- 

 gare; in Olandia haud raro; in (iolllandia pass- ex. gr. ad 

 Wamblingbo, Niihr cfc Rulhe, I). Dahlbom; in Uplandia 



