BY FREDERICK A. A. SKUSE. 719 



134. SCIARA INFREQUENS, Sp.ll. 



(J. — Length of antennse 0-040 inch ... 1-01 millimetres. 



Expanse of wings 0-060 x 02.5 ... 1-54x0-62 



Size of body 0-055x0-010 ... 1-39x0-25 



Antennae slender, rather more than two-thirds the length of the 

 body, brown, with a dense brownish-yellow pubescence ; joints of 

 the scapus with scarcely any pubescence ; flagellar joints sub- 

 sessile, 3 to 4 times as long as bx'oad, the joints very slender 

 towards the tip. Head black. Eyes contiguous above. Palpi 

 yellow. Thorax reddish-brown, levigate, with three longitudinal 

 single rows of brownish hairs from the collare to the scutellum, 

 not coalescent posteriorly ; also a few brown setae between the 

 origin of the wings and the humeri and on the scutellum. Hal- 

 teres dusky-brown, sprinkled with a few very short hairs, the 

 stem yellowish at the base. Abdomen slender, black or very deep 

 brown on the dorsal segments, pale between the segments and 

 underneath, densely clothed with a moderately long pubescence ; 

 forceps somewhat elongate, narrower than the terminal segment, 

 ochraceous-brown, densely pubescent. Coxse and femora honey- 

 yellow ; tibiae and tarsi ochraceous. In the fore-legs the tarsi 

 somewhat longer than the tibiae ; in the intermediate-legs the 

 tibiae somewhat longer than the tarsi ; in the hind-legs the tibiae 

 ^ longer than the tarsi. Spurs as long as the fourth tar.sal joint. 

 First joint of the tarsi about 2|- times the length of the second ; 

 second joint \ longer than the third, and equal to the fourth and 

 fifth together ; third joint almost ^ longer than the fourth ; fourth 

 joint somewhat shorter than the tifth. Wings hyaline, the costal 

 and two first longitudinal veins umber-brown ; smaragdine and 

 golden i-eflections. First longitudinal vein reacliing the co-sta 

 considerably before the base of the fork ; cross-vein rather 

 indistinct ; petiole almost invisible, somewhat longer than tlie 

 anterior branch of the foik ; branches moderately arcuated at 

 the base, the posterior less than the anterior, running almost 



