212 Orthorrhapha brachycera. 



Male. Eyes not quite touching, leaving a narrow, black, shining 

 frontal stripe; epistoma likewise black, shining. Proboscis long, some- 

 what longer than the head is high, directed forwards; palpi black, 

 with some hairs. Occiput black, a little greyish, with black hairs. 

 Antennæ black or blackish. Thorax black, shining, clothed with very 

 short dark hairs, indistinctly forming uniserial dorsocentral and qua- 

 driserial acrostichal rows; the hindmost dorsocentral hair is long. A 

 distinct notopleural and postalar bristle present, both black; besides 

 there are some smaller hairs. Scutellum with six black marginal 

 bristles. Pleura black, shining. Abdomen likewise black, shining, 

 clothed with yellow hairs, those at the hind margin of the segments 

 very slightly longer than the others. Venter black, a little shorter 

 haired. Legs yellow or dirty yellowish, tibiæ except the base some- 

 what brownish, the apex of the metatarsi and the following joints 

 blackish. Legs more or less short-haired with yellowish hairs, hind 

 femora with longer hairs above. Wings hyaline. Veins pale yel- 

 lowish. Stigma light brownish. Balteres yellow or dirty yellowish. 



Female. Similar to the male; the frons a little broader; the no- 

 topleural, postalar and scutellar marginal bristles yellowish brown (in 

 my not quite mature specimen). Ovipositor somewhat long and 

 slender. 



Length about 2,3 mm. 



En. myricae is very rare in Denmark, only two specimens, a 

 male and a female, have been taken, one by Stæger, probably in Or- 

 drup (the specimen mentioned by Zetterstedt 1. c. VIII), and one in 

 Tyvekrogen on ^/e 1909 (the author). I think it certain, that the species 

 is myricae., though Zetterstedt says, that the eyes in the male are 

 „conniventes". — I have folio wed the catalogue in calling the species 

 myricae Hal., though I see no reason, why it should not be named 

 consobrina Zett. 



Geographical distribution: — Northern Europe, from the northern 

 Scandinavia to Denmark, and in England. 



4. Hemerodromiinae. 

 Eyes separated in both sexes, sometimes the frons narrower in 

 the male than in the female; the eyes may be touching below the 

 antennæ. The facets not larger above than below, but when the 

 eyes are touching below the antennæ, the facets are enlarged in the 

 front part of the eye. The eyes sometimes hairy. Antennæ three- 

 to tive-jointed ; when five-jointed they terminate in a two-jointed arista 

 or style; in Hemerodromia the arista is undivided, the antennæ thus 

 four-jointed , and in Trichopeza the third joint tapers into a long, 



