MYDROSOMA. 5 



ceous. The abdomen very finely and closely punctured ; the anal 

 fimbria fuscous ; beneath, the segments have a pubescent marginal 

 fringe, which is white towards the sides and fulvous in the middle. 



Male. Length 6|-7 lines. — Black, smooth, and shining. The face, 

 cheeks, and thorax with fulvous pubescence ; the scape of the 

 antennae and four or five of the basal joints of the flagellum be- 

 neath ferruginous ; the anterior margin of the clypeus, the labrum, 

 and mandibles reddish yellow, the tips of the latter black. The 

 tibiae, tarsi, and tips of the femora pale ferruginous ; wings fulvo- 

 hyaline, the nervures ferruginous. Abdomen oblong-ovate ; all 

 the segments with their apical margins narrowly white or yel- 

 lowish white. 



Hah. Queensland. 



4. Paracolletes abdominalis. 



Female. Length 5| lines. — Head and thorax black, abdomen fer- 

 ruginous. The face clothed with white pubescence, the clypeus 

 shining and coarsely punctured ; the flagellum of the antennae, ex- 

 cept two or three of the basal joints, bright fulvous beneath ; the 

 mandibles ferruginous in the middle. Thorax with pale fulvous 

 pubescence above, beneath it is whitish ; the tibiae and tarsi ferru- 

 ginous, and with pale glittering pubescence ; the posterior femora 

 with a dense fringe of white pubescence, the scopa on the posterior 

 tibiae white ; wings hyaline, with the nervures ferruginous, the 

 tegulae rufo-testaceous. Abdomen oblong-ovate, truncate at the 

 base; the margins of the segments thinly fringed with pale pubes- 

 cence ; that on the apical segment fulvous ; beneath, the segments 

 are fringed with white pubescence. 



Hah. Western Australia (Champion Bay). 



MYDROSOMA, Smith. 



Head not so wide as the thorax ; ocelli in a slight curve on the 

 vertex ; antennas slightly clavate, the basal joint of the flagellum 

 only a little longer than the second joint, the third and following 

 joints slightly increasing in length to the apical one ; the labial 

 palpi 4-jointed, the joints short, each in succession decreasing in 

 length ; the maxillary palpi 6-jointed ; the tongue short, obtuse at 

 the apex, and emarginate. The anterior wings with one elongate 

 marginal cell, its apex truncate ; three submarginal cells, the first as 

 long as the two following united, the second subquadrate, slightly 

 narrowed towards the marginal cell, the third a little shorter than 

 the second and oblique ; the first recurrent nervure uniting with 

 the first, and the second uniting with the third transverse nervure. 

 Abdomen ovate. 



This genus has nearly the same neuration of the anterior wings 



