Alexander — Crane Flies 267 



segments subcylindriecil ; foLirth to eighth narrowed l)asa>lly, widened distally, 

 the apex of each truncated, giving the flagellum a subserrate appearance; two 

 apical segments more elongate. Head dark blue-black, pruinose. Mesonotuni 

 badly discoloured in the type, blue-black, light gre.y pruinose; the prae- 

 scutuni apparently has darker longitudinal stripes, including a capil- 

 lary median vitta. Pleura gre}', almost Avhitish innnediately before the halteres, 

 provided with conspicuous whitish hairs, longest and most conspicuous on the 

 lateral sclerites of the postnotum. Halteres light brown. Legs with the coxae 

 dark, light grey pruinose; trochanters dark ')rown; femora dark brown, the basal 

 third, or slightly more, conspicuoush' rufous; tibiae reddish-brown, the tips 

 darkened ; tarsi brownish-black. Wings with a faint brownish tinge, sparsely 

 variegated with whitish subhyaline; cells C and Sc more yellowish; stigma 

 brownish; the whitish areas occupy the basal half of cell R-; outer half of cell 

 first M-; most of cells M^ and second M-; apices of cells M and M*, and less 

 distinctly in the bases of cells Cu, M\ and the anal cells; veins dark brown. 

 Venation : Rs moderately long, a little shorter than W ; r rather faint, oblique, 

 inserted on R- shortly beyond the fork; R-^-^ a little longer than R^; petiole of 

 cell M^ about two-thirds of m; basal deflection of M^+- about equal to m and 

 parallel with it ; m-cu punctif orm ; Cu- about one-half longer than the deflection 

 of Cu^ Abdomen blue-black, pruinose; caudal margins of the segments very 

 narrowly and indistinctly margined with paler, less distinct on segment two, 

 gradually widening to the sixth and seventh segments. Terminal segments of 

 the abdomen narrowed; ovipositor relatively small, the tergal valves long and 

 slender; sternal valves much shorter, compressed, the tips obtusely rounded. 



Hah. Tasmania: ISummit of Mount Wellington (A. M. Lea). Type, 

 L 12181. 



/. prionoceroides is a very distinct species of the genus. The resemblance 

 to species of the northern genus Prionocera Low is surprising. 



ISCHNOTOMA RUBROABDOMINALIS sp. nov. 



Vertical tubercle small, reddish, less distinctly so in the female; mesonotal 

 praescutum with three grey stripes that are narrowly margined with dark brown, 

 the median stripe split by a capillary dark broA\ai line ; legs black, only the bases 

 of the femora brighter ; abdomen reddish, the segments greyish-pruinose laterally ; 

 segments eight and nine dark brown. 



S Length, 13-5-15 mm. ; wing, 15-16 mm. $ Length, 16-18 mm. ; wing, 

 14-16-4 mm. 



Frontal prolongation of the head dark brown, pruinose; nasus long and 

 slender; palpi dark brown. Antennae dark brown, the first scapal segment 

 pruinose ; in the male the first flagellar segment is elongate-cylindrical, the second 



