528 Tachinidae. 



at the suture, the lateral here interrupted and divided into two 

 narrow, elongated spots. Thorax black-haired. Abdomen black, more 

 or less reddish at the sides; it is whitish or bluish grey pruinose, 

 shifting with more or less defmite blackish spots according to view; 

 the hind margins are black, on fifth segment the hinder half or more. 

 Abdomen black-haired; second segment without bristles, third with 

 a pair of discai and marginal and fourth with a pair of discai and a 

 row of marginal. Legs black with tibiæ yellowish or reddish. Wings 

 nearly clear; veins brown. Squamulæ whitish with a yellow margin. 

 Halteres yellow. 



Female. Quite similar, only basal joints of antennæ more or less 

 red, and third joint shorter and not or less dilated. 



Length 8—10 mm. 



Z). plebejus is not just common in Denm.ark, but taken in several 

 localities; Rørvig; on Funen at Middelfart and Odense, and in Jut- 

 land in Nørholm Skov at Varde, Horsens, Hov, Tvilum near Silke- 

 borg, Bjørnsholm on Djursland, Rebbild and Buderupholm (I. C. 

 Nielsen, Kryger, the author); the dates are ^^/g — ^V?- It is generally 

 seen on umbellifers. 



Geographical distribution: — Europe; towards the north to 

 middle Sweden, and in Finland. 



128. Pseudodemoticus B. B. 



Species of medium size and greyish colour, with red side spots 

 on abdomen. The genus is nearly related to Demoticus. Head as in 

 this genus; epistoma somewhat retreating, distinctly reflected and 

 protruding below. Proboscis somewhat long and slender. Palpi 

 thread-like, not or slightly dilated apically. Antennæ inserted above 

 middle of the eye, third joint four times as long as second; arista 

 with second joint short. Thorax nearly quadratic; three postsutural 

 dorsocentrals and two præ- and three postsutural acrostichals (to 

 judge after my sole rather detrital specimen). Scutellum with two 

 marginal bristles on each side and no apical. Three sternopleural 

 bristles. Pteropleura above with a bundle of hairs and a bristle. 

 Abdomen elongated conical; excavation on second segment small, 

 not by far reaching hind margin; there are discai and marginal 

 bristles, second segment with a pair of marginal. Legs somewhat 

 long; claws and pulvilli not elongated. Wings as in Demoticus. 



Only one species is known, also occurring in Denmark. 



