Hypocera. 165 



following g'enus Conicera, especially vitripennis with the subapical 

 arista is related to Conicera and shoiild perhaps be placed in this 

 genus; I leave it, however, at present here on account of its shorter 

 third antennal joint, not quite apical arista and otherwise arranged 

 hind tibial bristles; the other species show, as remarked under Dohr- 

 fiiphora, affmities to this genus; in the future the genus will certainly 

 be divided. 



Of the genus 14 palæarctic (European) species are known; 8 

 occur in Denmark. 



Table of Species. 



1. Mesopleura with a long bristle; third vein with a short 



vovt of hristles at base 1 . mordellaria. 



— Mesopleura without bristle; third vein with hairs in about 



the whole length or bare 2. 



2. Frons with a large, elevated knob at vertex, bearing the 



hinder ocelli, anterior ocellus wanting 3. 



— Frons without such a knob; three ocelli present 4. 



3. Frontal knob more than half as broad as the frons; front 



tibiæ with two or more bristles 2. incrassata. 



— Frontal knob not more than one third of the breadth of 



the frons; front tibiæ with only one bristle 3. carinifrons. 



4. Fourth vein strongly curved at its origin and fourth and 



fifth veins strongly diverging 5. 



— Fourth vein moderately or slightly curved at its origin and 



fourth and fifth veins less diverging 6. 



5. Third vein unforked; middle tibiæ with the apical bristle 



well developed and a little above apex 4. flavimana. 



— Third vein forked; middle tibiæ with the apical bristle 



very minute and placed at apex 5. irregularis. 



6. Mesopleura hairy above; hind tibiæ with a dorsal furrow; 



third vein with hairs 6. agilis. 



— Mesopleura bare ; hind tibiæ simple without dorsal furrow ; 



third vein without hairs 7. 



7. Hind tibiæ without bristles except a minute apical one. . 7. citreiformis. 



— Hind tibiæ besides the apical bristle with two or three 



bristles 8. vitripennis. 



1. H. mordellaria Fall. 



1823. Fall. Dipt. Suec. Phytom. 6,4 {Trineura). — 1830. Meig. Syst. 

 Beschr. VI, 212, 2 (Phora). - 1848. Zett. Dipt. Scand. VII, 2883, 31 {Trineura). 



— 1864. Schin. F. A. II, 339 {Phora). — 1901. Beck. Abhandl. zool. hot. Geseli. 

 Wien, I, 40, 30, Taf. II, Fig. 34 {Phora). - 1906. Wood, Ent. Month. Mag. 2, 

 XVII, 263 {Phora). — 1910. Kertész, Cat. Dipt. VII, 400. - 1914. Brues, 



