82 Orthorrhapha brachycera. 



X. maculata is rare in Denmark, and it has only been taken a 

 few times, but it has been bred in grealer numbers; vicinity of Copen- 

 hagen (Sciiiødte), Dyreliaven (Sclilick), Frederiksdal (Lovendal); Lolland 

 at Maribo (Schlick); the dates are in July: it was taken in copula on 

 "7. The larva has been taken in beech at Maribo on ^^li-: 



Geographical distribution: — Northern and middle Europa from 

 Southern Sweden down into France. 



Coenomyiidae. 



Head not as broad as thorax, situated somewhat downwards on 

 the front end of thorax. Antennæ placed near to each other, ten- 

 Jointed. Eyes hairy, touching in the male. separated in the female. 

 Three ocelli present. Clypeus not separated from the epistoma. Mouth 

 parts consisting of labrum, hypopharynx, maxillæ and labium with 

 rather broad labella: proboscis rather short. Thorax rectangular; 

 scutellum with two spines. Abdomen robust, consisting of seven seg- 

 ments. Legs rather strong, somewhat longish; front tibiæ with one, 

 posterior tibiæ with two apical spurs. Claws simple, thickened at the 

 base: two pulvilli and a pulvilliform empodium. Wings with the costal 

 vein extending all round the margin, radial vein present, cubital vein 

 forked : discai cell formed chiefly of the discai vein, but partly dosed 

 below by the anterior brancli of the postical vein, thus there is no 

 postical cross-vein; there are five posterior cells; the basal cells are 

 ofequal leiiglh, the anal cell reaches the margin. Alula well developed. 

 alar squamula small, thoracic squamula extremely narrow, slightly 

 broader towards the angulus. — The larvæ are amphipneustic: the 

 pupæ are free. 



The familiy includes three palæarctic genera, with one species each: 

 from North America five species are known ; one species, our C. ferru- 

 ijmea, is conmion to both regions. Only one genus with a single 

 species occurs in Europe. 



I am aware of no case of parasitic Hymenoptera on Goenomyids. 



No Goenomyid has been recorded from Denmark before. 



1. Coenomyia Latr. 



Species rather robust and of large size. Head rather short and 

 small, not as broad as thorax. flat behind, somewhat resembling the 

 head of a Muscid. Yowls not descending below the eyes; epistoma 

 impressed and separated from the cheeks by a dividing line. Antennæ 

 inserted nearly in the middle of the head, ten-jointed ; the first basal 



