NO. 2103. JAVANESE CRANE-FLIES— ALEXANDER. 181 
It can readily be seen that the differences between Tipula and 
Ctenacroscelis are very shght and consist of the great arcuation of R^ 
and the consequent narrowing of cell B.^ near its middle and the 
presence of a ctenidium near the tips of the femora. Some species of 
Tipula {pedata Wiedemann) have the ctenidium very poorly defined, 
the individual spines taking on the appearance of stout hairs; it is 
easy to figure out a transition into a perfectly normal Tipula. 
Genus PRIONOTA van der Wulp. 
Prionota van der Wulp, Notes Leyden Museum, vol. 7, 1885, p. 1. 
PRIONOTA NIGRICEPS van der Wulp. 
Prionota nigriceps van der Wulp, Notes Leyden Museum, vol. 7, 1885, p. 2; 
Tijdschr. voor Entom., vol. 28, 1885, p. 82, pi. 4, figs. 3, 4. 
One male, Mount Salak, Java, May 15, 1909; one female, Tjibodas, 
Mount Gede, Java, April 20, 1909 (Bryant and Palmer). The speci- 
mens may be further described as follows: 
Male. — Length, 15.8 mm.; wing, 14.8 mm.; antenna, 6.8 mm. 
Female. — Length, 33 mm.; wing, 22.5 mm. 
The wing is shown on plate 45, fig. 34. 
The male hypopygium is short and subglobular, the 9th tergite 
from above (see pi. 47, fig. 51) almost bifid by a very deep notch, the 
lobes black with long dense black hairs. 9th tergite and pleurite 
fused into one compact mass (see pi, 47, fig. 52), the pleural portion 
rounded with a few scattered black hairs. Pleural appendage large, 
flattened, rather oval, the ends somewhat pointed; the appendage is 
densely covered with gray hairs so as to present a silvery appearance. 
9th sternite large, not projecting caudad of the pleurite. 
The curious antennae whence van der Wulp derived his generic 
name are figured on plate 47, fig. 50. 
It is hard to understand why Doctor Enderlein ^ insists upon plac- 
ing Prionota as a synonym of Prionocera Loew { = Stygeropsis Loew). 
The two genera have very little in common, the antennae of Pnonota 
being provided with bristle-like hairs, those of Stygeropsis quite naked 
except for the usual pubescence. Prionota has a remarkable hypo- 
pygium in the male sex, the 9th tergite deeply bilobed, the tergite 
fused with the pleurite, etc. Stygeropsis has a perfectly normal 
Tipuline hypopygium with the 9th tergite quite distinct from the 
pleurite. The character of the serrations on the antennae is quite 
different in the two genera. It is also hard to understand why the 
name Prionocera is used. This name, proposed by Loew in 1844, is 
preoccupied by the same name used by Shuckard in the Coleoptera 
in 1839.- 
1 Zool. Jahrb., vol. 32, pt. 1, 1912, p. 28. 
2 Elements of British Entomology. 
