BY FREDERICK A. A. SKUSE. 6S7 



108. SCIARA FAMILIARIS, Sp.ll. 



J". — Length of antennse O'OSO inch ... 0*76 millimetre. 



Expanse of wings 0-070 x 0-030 ... 1-77 x 0-76 



Size of body 0-070 x 0-012 ... 1-77 x 0-30 



2. — Length of antennae 0-027 inch ... 0.88 millimetie. 



Expanse of wings 0-080 x 0-030 ... 2-02 x 0-76 



Size of body 0-080x0-015 ... 2-02x0-38 



^. — Antennte very slender, deep brown, witli a dense pale pubes- 

 cence ; joints of the scapus Vjlack, sparsely haired ; flagellar joints 

 L| to 1-5- times as long as bi-oad, five times as long as the pedicels. 

 Head black. Eyes contiguous above. Palpi brown. Thorax black, 

 levigate, with two longitudinal double rows of short sparse hairs 

 running almost to the scutellum ; a few longer hairs between the 

 origin of the wing aiid the humeri, also on the scutellum. Halter'^s 

 umber brown, the base of the stem ochraceous-yellow ; short sparse 

 pubescence on the club. Abdomen umber-brown, sordid ochra- 

 ceous between the segments, with a moderately long, rather dense, 

 pubescence; forceps and terminal segment almost black, the former 

 wider than the two segments immediately preceding them, very 

 densely haired. Legs greyish-brown. In the fore- and interme- 

 diate-legs the tarsi a little longer than the tibise ; in the hind- 

 legs the tibite slightly longer than the tarsi. Spurs as long as 

 the fourth tarsal joint. Fourth joint of the tarsi 2J times the 

 length of the second ; second joint | longer than the third and 

 almost equal in length to the fourth and fifth combined ; third 

 joint somewhat longer and considerably thicker than the fifth, 

 and about i longer than the fourth. Wings almost hyaline, with 

 a very pale greyish-brown tint; veins light umber-brown; brilliant 

 violaceous and purpureous reflection when viewed at a certain 

 obliquity. First longitudinal vein reaching the costa a short 

 distance before the root of the fork, and opposite to the tip of the 

 posterior branch of the fourth longitudinal ; cros.s-vein very 

 distinct, a little beyond the middle of the first longitudinal 

 vein ; petiole more indistinct than the fork, rather shorter 



