Stratiomyiidae. 21 



still more shining than the thorax. Legs with the feniora black, pale 

 at the tips, the trochanteres are also a little pale, tibiæ and tarsi 

 yellowish white. Wings entireiy hyaline, veins pale, the discai vein 

 and the veins rising from the discai cell very inconspicuous ; no distinct 

 stigma; the radial and cubital veins rising about from the same point 

 of the subcostal vein, cubital vein short. not forked. Halteres blackish. 



Fig. 5. Wing of P. minutissima. 



Female. Antennæ yellow. Front broad, occupying more than 

 one third of the breadth of the head, shining black with an impressed 

 line, devided above and bordering each side of the ocellar tubercle. 

 Halteres pale, knob white. 



Lenght 2,5—3 mm. 



This species is easily distinguished by its small size and shining 

 black colour and especially by the cubital vein not being forked, this 

 being unique in the genus. 



P. minutissima seems to be very rare here, I only know a few 

 specimens, one is taken in Mr. Drewsen's breeding house, bred from 

 wood from Dyrehaven, and it has been bred of larvæ, taken in 

 Bromme Plantage at Soro (Meinert). The larva is said to live under 

 bark of Pinus and Abies. 



Geographical distribution: — Northern and middle Europe down 

 into France. 



2. P. tarsalis Zett. 



1842. Zett. Dipt. Scand. I, 152, 2. - 1862. Schin. F. A. I, 3. — 

 1870. Loew, Zeitschr. gesammt. Naturwiss. XXXV, 270, 2. — 1903. Kat. 

 palaarkt. Dipt. 11, 3. 



Male. Antennæ yellowish. the annulated complex sometimes a 

 little darker, especially beneath, arista yellowish white. Frontal tri- 

 angle silvergreyish, with an impressed median line. Thorax black, 

 slightly shining, rather coarsely punctate, clothed with very short, 

 brownish pubescence; pleura and sterna more glabrous and more 

 shining. Abdomen with punctuation and pubescence as on thorax. 

 Legs with the femora black or brownish black, tibiæ and tarsi yello- 

 wish white, the posterior tibiæ with the basal part blackish or brownish 

 to greater or lesser extent, in the hind tibiæ nearly to the apex. Wings 

 with the basal half sligthly fumigated, the veins in this part, except 



