654 G9. Syrphns. 



sceiideiis, tiibercuiatuiii. Alae divaricatee. NerAus 4:tus 

 lotigitudinalis versus apicem valde aicuatiin (lexus. >ieivi 

 transversi , (]ui areas 1 cfe 2 discoidales juxta niaigiiieiii alifi 

 terniinant, subrecti ; ner\ulus, qui ex area angulaii excur- 

 rit, vix ad sunnnuni niaigiitem descendit. Nerviis costalis 

 paulii» ante apicem alte desinit. Fedes sinnilices (in S. ciiii- 

 bicifurini fo»t\v\ incrassati) , niutici, tibiis posticis subin- 

 curvis. Culor (in nostris) nigricans , pictiira abdominis, 

 •lum adest, trian;;ulaiiter navo-macuiata. Motns: volatii 

 celeniinus ; iii aere pendulus ^elocissinie avolat, cito vero 

 ad eundeni locum revertit , lusum talem pluries repetens, 

 pipieiis. Hahilntio in hortis , pratis & liicis, quoriim flores 

 sediilo visitat, a prinio vere usqiie ad seniiii aiitiimnnm 

 vigens. Qiifcdam species in alpes Ijapponifo iisqiie ad ter- 

 niinuni a cgetalioiiiM adscendiint. Larvce \n aqiia putrida, 

 limo , luto, tnincis cavis aiboriim siicco I. a(jiia iinpiira re- 

 pletis, e. s. p. degiint. Plures species generatioiies saltem 

 diias, unam vernalem &: alteram autuninalem , anno prodii- 

 cere videntur. Differentia sexua ; mas : ociiiis aiit sccpis- 

 siine cohcerentibus , aut dissepimento angusto, lineari in 

 fronte disjunctis ; femina: oculis sat late reniotis. 



SnbiL 1. Sela antonnaiuii) plumala. Oculi uiascu- 

 loiuin in fronlc connexi. 



1. S. mtricarius: aler, supra lulco-liirlus, abtlo- 

 inino aul concolore , seirmonlis 2 <t- 3 lalorihus niaciila 

 fulva (J"), aul nigro, ano alho-hirsulo ($); sculollo fla- 

 vido ; alis vilrois, aul immaculalis (J* ) , aul in modio ma- 

 cula costali fusca notalis ($); tihiis hasi alhis. (jf^. (Long. 

 4— 4i lin.). 



Var. a. (;{$. thorace supra lutco-hirsuto. 



Fahr. Spcc. Ins. 2. 426. 22. ?. Panz. Fn. Gorm. 59. 

 11. $. Ross. Fn. Elr. 436. 1448. (^^. Fall. Syrph. 23. 12. 

 J$. Zelt. Ins Lapp. 592. 1. ^j^^. Jlttsca Linn. Fn. Su. 

 1800. $. Erislalis Fahr. Anll. 282. .3. $. Meig. Dipt. 3. 



