198 Mr. R. E. Tin-nev on neto 



parapsidal furrows very shallow and narrow, almost obsolete; 

 scutum much longer than the scutellum; median segment 

 with a longitudinal groove. Head and thorax opaque, 

 without sculpture, the face below the antennae finely punc- 

 tured. Petiole 2-jointed, the basal portion formed by the 

 first sternite very slender throughout, the apical portion 

 fully half as long again as the basal, gradually widened 

 towards the apex ; second segment about equal in length to 

 the basal portion of the petiole ; tergites 2—5 much longer 

 than broad. Terebra scarcely longer than the basal portion 

 of the petiole, slender. Hind tibiae strongly swollen ; hind 

 metatarsus nearly equal in length to the four apical tarsal 

 joints ; tarsal ungues small. Wings small and short, not 

 reaching beyond the apex of the second tergite. 



The male has the second and first joints of the flagellum 

 equal, the third as long as the first and second combined. 



Hab. Kalamunda, S.W. Australia {Turner), February 

 1914. Three females and one male. Easily distinguished 

 by the long narrow head and thorax and short terebra. 

 Not nearly related to the New Zealand group typical of the 

 genus, but nearer to American species such as angustatus, 

 Kieff. The species included in Pseudofcenus by Kieffer 

 seem to fall into two groups, one, including the type of the 

 genus, approaching Hyptiogaster, the other much nearer to 

 Fcenus. The first group is confined to New Zealand. 



Pseudofcenus fluvialis, sp. n. 



2 . Nigra ; mandibulis tegulisque testaceis ; tibiis macula basali, 

 tibiis anticis apice, tarsis auticis, metatarsisque iiitermediis 

 posticisque albidis ; terebra valviilisquo nigris, apioe albidia ; alls 

 hyalinis, iridescentibus, venis nigris, stigmato brunneo ; terebra 

 abdomiue pauUo breviore. 



Long. 11 mm.; terebrae long. 6 mm. 



? . First joint of the flagellum very little longer than the 

 second, the two combined distinctly shorter than the third. 

 Head long and narrow ; cheeks very short, almost obsolete ; 

 head feebly margined posteriorly, narrowed behind the eyes, 

 which are separated from the hind margin of the head by a 

 distance equal to about one-third of their own length. An- 

 terior ocellus situated just in front of the line joining the 

 summits of the eyes. Head and thorax opaque, without 

 sculpture, clypeus finely and closely punctured. Neck as 

 long as tlie distance between the tegulae and the front of 

 the mesonotum ; parapsidal furrows narrow, but distinct, 

 finely crenulate ; mesonotum rounded anteriorly, scutum as 



