208 EUCOELA CEASSINERVA. 



Not apparently common. Clydesdale, London dis- 

 trict. 



Continental distribution : Germany. 



15. EUCOELA CBASSINERVA. 

 PL X, fig. 4. 



Eucoela crassinerva, Westwood, Mag. Nat. Hist, 1833, p. 494. 

 Figites syrphi, Newman, Ent. Mag., ii, 515. 

 Eucoela crassinervis, Dbm., Sk. Hym.-Fn., No. 20. 



Cruerini, Dbm., Onych. och Callasp., pi. ii, f. 8. 

 Cothonaspis maculatus, Htg., Germ. Zeit., ii, 201, 3. 

 Eucoela maculata, Gir., Verb. z.-b. Ges. Wien, x, 134; Thorns., 

 Oef., 1861, 405. 



Black, sbining ; tbe base and apex of femora, the tibiae and tarsi 

 piceous-red; the flagelluin piceous to piceous-red; wings hyaline, 

 smoky in the middle, especially below the radial cellule. Antennse a 

 little longer than the abdomen ; the club abruptly 8-jointed ; the third 

 joint one-half longer than the fourth ; the fourth and fifth equal in 

 length. Scutellum rugosely clathrate ; the cup shallow, large, longer 

 than broad ; the base much more acutely pointed than the apex ; the 

 edge fuscous or piceous ; the foveae large, deep, broader than long, 

 shining, their outer margin longitudinally striated. Hair-fringe large, 

 griseous-white ; metanotum sparsely covered with fuscous hair. 



The $ has the antennae about one-fourth longer than the body, and 

 has the flagellum usually darker than in the ? ; the third joint is not 

 much shorter than the fourth, is thinner than it, and is very slightly 

 emarginate. The legs are darker than in the $ . 



Length 4 4'5 mm. 



If this be syrpM, Newman, the species is a parasite 

 on the larva of Syrphus. 



Not uncommon in Scotland and England. 



Continental distribution : Sweden, Germany, Aus- 

 tria. 



11. 



Radial cellule open. 



Antennae shorter than the body in ? with 8-jointed club. Scutellum 

 rugosely punctured, with a large, deep, round cup, and having a large 

 fovea behind. Second abdominal segment with a large hair-fringe. 

 Wings deeply fringed. Cubitus complete or obsolQtQ=Trybliographa t 

 Foerster, Yerh. z.-b. Ges. Wien, xix, 359. 



