«6. Xi/fofa. 819 



I. c, iii nostris .speciininibus 3 masciiiis iioii observavi. |)e 

 iileiuitate siias species & X, pigra ipse Cel. Vir nie nuper 

 atteiituii) fecit. 



13. X. Jforum : obscuro ifuoa , parum pubescons, 

 aiilennis obscuris; abcloniine nigio, maculis (in scgmenUs 

 2 tt- 3) qualuor subquaclialis, opposilis, flavo-rufis; pe- 

 dibus nigris, geniculis summis larsorumque anleriorum 

 articulis 2 primis, flavis. (^$. (Long. ."J lin.). 



Wieclemann apucl ]\Ieig. Dipt. ^. 217. >S. ^. Macq. 

 BulT. 1. 521. 4? '^ (sub divisione Irocbanleribus posticis 

 maris luberculo armalis prajdila). — An Scaeva fiorum 

 Fabr. Anll. 250. 7.? — X bifasciafa Zell. Ins. Lapp. 

 585. 2. J9. 



Hab. iii foliis fiuUcum, in horlis d- pratis, per Sue- 



ciam 30 Jun.--8 Jul.— 27 Aug., passim; nempe in Scania 



ad Kragebolm raro^ in Smolandia larius; in Oslrogotbia 



passim ex. gr. ad Liirketorp, AVadslena, Lindeniis ( 0. 



Dahtf)om) , Gusuin raro (D. fVahlljerg) ., pijedium Jons- 



berg d- in horto !'asloris ad Haradshammar parce (0. 



Sleiihammar) ; in ^^'eslrog. acl (iolhobiirgum, D. Eb. liosf/i- 



scho/d; iu U[)l:iiidia ad Tlolmiam frequens, D. IVahlberg; 



in Lapponia Umensi inter Tresunda d: Niislansjo rarissime. 



O?. Prioribiis niinor, brevior. yEneo-iiigra, siibnititla. Ca- 



put cinerascens, fronte $ in niedio cinerea. AntciintC ob- 



.scurcB 1. fusca3. Callus hiinieralis ut in anteccflentibiis ci- 



nereo-niicans. Thorax ieneus. Abclomen lineare, breve, .sat 



latuni, segmentis 1 , 4 cfe 5 eenescentibus , siibpubesceiitibu.s 



nitidis, 2 <fc 3 atris opacis, maculis in singiilo 2 (t- 2 sub- 



«juadratis oppositis transvcisis , rufo-riaxis. Al;c li}alin;e, 



Sf|uam;o (i- halteres, alba. Pedes nif,'ri , libiis basi angiiste, 



tarsorumqiie anteriorum articulis 2 basalibiis, flavis. Fe- 



mora postica crassa , .subtus breviter rigide nigro ciliata. 



Segmentum abdominis 4;tum in illaisis maciila utriiique ba- 



