86 Orthorrhapha brachycera. 



not pointed outwards; anal vein reaching the margin. Axillary lobe 

 small, the axillary angle rectangular or obtuse, and likewise the angle 

 between squamula and alula. Squamula fringed at the margin, or 

 (bilineata) bare. 



The species are all more or less essentially spring species, or at 

 all events occur somewhat early. They occur especially in woods 

 and thickets on shaded piaces. The species never hover in the air 

 and the copulation does not take place in the air; so far as is known 

 the male does not carry prey to the female at the time for copulation. 



Table of Species. 



1 . Squamulæ bare at the margin ; thoracic bristles very short ; 



the disc grey with two brown stripes 1. bilineata. 



— Squamulæ fringed at the margin; thoi'acic bristles longer; 



the disc not with two stripes 2. 



2. No supraalar bristle; thorax yellow with one stripe, or 



grey with three stripes 3. 



— A supraalar bristle present ; thorax yellow, with three 

 stripes or unstriped 5. 



3. Thorax grey with three stripes; pleura with grey spots; 



scutellum with two bristles 2. punctata. 



— Thorax yellow with one stripe; pleura yellow; scutellum 



with four bristles 4. 



4. Prothoracic spiracles yellow ; thoracic disc dull with a 



rather broad stripe 3. univittata. 



— Prothoracic spiracles black; thoracic disc shining with a 



narrow stripe 4. stercorea. 



5. Thorax with three stripes 5. trigramma. 



— Thorax unstriped 6. lutea. 



1. E. bilineata Loew. 



1867. Loew, Berl. Ent. Zeitschr. XI, 14 et 20, 5. — 1903. Kat. palåarkt. 

 Dipt. II, 233. — Empis punctata: 1805. Fabr. Syst. Antl. 142, 22. — 

 1830. Meig. Syst. Beschr. III, 338, 51. — 1862. Schin. F. A. I, 107. — 

 Empis testacea: 1842. Zett. Dipt. Scand. I, 378, 11 et 1849. VIII, 3024, 

 11. — Empis digramma: 1838. Meig. Syst. Beschr. VII, 87, 68. — 1909. 

 Bezzi, Deutsch. Ent. Zeitschr. Beiheft, 91. 



Male. Eyes broadly separated, frons yellow with a longitudinal, 

 somewhat shining impression in the middle, and with some short, 

 black hairs ; epistoma and jowls yellow, slightly greyish. Occiput 

 yellow, above with a large, dark grey spot reaching to the ocellar 

 triangle; a narrow, triangular, shining space stretches from the ocellar 

 triangle backwards; above occiput has short, black bristles. Labrum 

 is ferruginous, palpi yellow. Antennæ about as long as the head, 

 black, the two basal joints short-haired, the third somewhat elongated. 

 Thorax dull greyish yellow, sometimes grey, with two distant, some- 



