LIMNOBIA. 289 







SUBSECTION 3. 



Species with short antenna, unspotted wings, and stout legs. 



15. unicolor, n. Lutea, capite cano, palpis antennisque nigris, 

 alls subcinereis ad costam subtestaceis, tibiis et tarsorum articulis apice 

 nigris. Long. 4 ; alar. 10 lin. 



Luteous. Head hoary. Palpi and antennae black, the latter tawny 

 towards the base. Wings pale greyish, with a slight testaceous tinge, 

 which is most apparent by the costa ; stigma and halteres testaceous ; 

 tips of the tibiae and of the joints of the tarsi black. 



Rare. (E.) 



SECTION 7. 



g g. Petiole of the first externo-medial vein twice the length of its fork. 



Mediastinal vein ending at rather before two-thirds of the length of 

 the wing, forked at its tip ; subcostal joining the costal at beyond three- 

 fourths of the length, joined very near its tip with the radial by a 

 transverse veinlet ; radial and cubital springing from a common petiole, 

 which proceeds from the subcostal at beyond half the length of the 

 wing ; radial forked near its base ; cubital forming very near its base 

 an angle, whence proceeds the first externo-medial ; the latter is also 

 rectangular near its base, and is forked at a little before two-thirds of 

 its length, and is connected with the third externo-medial by two vein- 

 lets ; the outer one of these forms a slight angle, whence proceeds the 

 second externo-medial ; third externo-medial connected with the sub- 

 anal by a transverse veinlet, which is at one-third of the length of the 

 discal areolet. 



16. tarda, Walk. C. D. B. M. i. 41 (1848). Cinerea, antennis 

 pedibusque nigris, thoracis lateribus canis, alis cinereis, venis transversis 

 nebulosis, femoribus basi coxisque fulvis. Long. 3 ; alar. 7 lin. 



Grey. Antennas black, much longer than the thorax. Thorax hoary 

 on each side. Wings grey; transverse veinlets clouded with darker 

 grey ; stigma dark grey ; veins black. Halteres tawny, with browii 

 knobs. Legs black ; femora towards the base and coxae tawny. 



Not common. (E.) 



SECTION 8. 



g g g. Petiole of the first externo-medial vein more than twice the length of its fork. 



Mediastinal vein ending at a little beyond two-thirds of the length 

 of the wing, connected with the subcostal by a veinlet near its tip ; 

 subcostal ending at about five-sixths of the length ; radial and cubital 

 springing from a common petiole, which they nearly equal in length, 

 and which proceeds from the subcostal at some distance before half the 

 length of the wing ; radial forked before one-sixth of its length ; cu- 

 bital forming very near its base an angle, and then connected with the 



VOL. iv. 2 P 



