6 Orthorrhapha brachjcera. 



Cyrtogaster vulgaris Walk. Of all six parasites there is only one in 

 each Lonchoptera pupa. 



Lonchopterids earlier recorded from Denmark: No Lonchopterid 

 is mentioned earlier than Zetterstedt; this author records in 1848 (Dipt. 

 Scand. VII) five species, lutea Meig., thoracica Meig., trilineata Zett. 

 (Stæg. in litteris), riparia Meig. and cinerella Zett.; these represent, 

 as seen below, only the two species lutea Meig. and furcata Fall. ^ ; 

 thus two species were then known from Denmark. In the present 

 paper three species are enumerated. 



1- Lonclioptepa Meig. 



Species of small size and of yellow colour, more or less dark 

 striped to quite dark. Head transverse, a little broader than thorax; 

 it is somewhat arched behind. Vei'tex and frons broad, the latter 

 slightly narrowing downwards; ocellar tubercle a little prominent. 

 There are two pairs of fronto-orbital bristles; the lower pair, just 

 above the antennæ, approximated, the upper pair placed above, near 

 the eye-margins ; two ocellar bristles, and on the posterior side of the 

 triangle a pair of small hairs; four vertical bristles in a transverse 

 row, and lower down, on the middle of occiput a pair of somewhat 

 approximated, smaller postvertical bristles. Along the oral margin is 

 on each side a row of six to seven strong oral bristles; the anterior 



Fig. 1. Antenna of L. tristis. X 100. 



pair (vibrissæ) are shortest and crossing; besides there are some hairs 

 behind, above the mouth opening. Eyes not specially large, but pro- 

 minent, circular or a little oval; they are bare; the eyes are broadly 

 separated and equally separated in both sexes; the facets of equal 

 size. Antennæ inserted in the middle of the head, not quite near to 

 each other; they are short, six-jointed; first joint widening outwards. 



1 De Meijere thinks, that under hitea is perhaps also fallax de Meij. inlermingled, 

 as Zetterstedt describes the first antennal joint as yellow; I have, however, 

 specimens of certain lutea with the antennæ yellow at the base. 



