Agathomyia. 17 



species similar to that in Callimyia, in others more elongated, to three 

 times as long as broad. The hind legs are dilated as in Callimyia, 

 sometimes rather strongly, less in female than in male; in some 

 species almost not dilated; middle tarsus in female a little dilated. 

 The little knob near apex below middle femora in male is fully as 

 developed as in Callimyia. In the male there is on front femora the 

 same peculiar spine as in Callimyia, and there is a strong, blunt 

 bristle below hind femora on anterior side near base; further there 

 is as a rule, but not always, a dorsal bristle on middle tibiæ and one 

 or a couple of bristles below middle metatarsus, and fmally in some 

 species a posteroventral bristle on front tibiæ near apex, in others 

 not; middle tibiæ with only one apical spur. Of the bristles only the 

 dorsal bristle on middle tibiæ is generally present also in female, 

 but sometimes wanting. Wings as in Callimyia, but subcostal vein 

 without bristles. 



The developmental stages are not known. 



When Verrall created the genus he mentioned the longer third 

 antennal joint as a character, but this loses its value by the present 

 contents of the genus; the only absolute character against Callimyia 

 is the bare subcostal vein. The bristles on the legs in the male are 

 not applicable, as they may be different in the various species; only 

 the blunt bristle on anteroventral side near base of hind femora 

 seems always to be present in Agathomyia, and there is only one 

 apical spur on middle tibiæ. Verrall transferred six species from 

 Callimyia to the genus, but Wahlgren has shown (Entom. Tidsskr. 

 1910, 31) that still more species belong liere. The genus thus at 

 present comprises about 12 palæarctic species; five have hitherto 

 been found in Denmark, but probably still a couple of species may 

 be found here. 



Table of Species. 



1. Large species with thorax grey to brownish and abdomen 

 in both sexes yellow with brownish spots or bands, but 



without black colour ; antennæ mainly yellow 1 . FaUeni. 



— Smaller species with thorax black in both sexes or grey in 

 female, and abdomen in both sexes more or less to quite 



black; antennæ black or mainly so 2. 



2. Males 3. 



— Females 6. 



3. Quite black species 4. 



— Not quite black species 5. 



2 



