
ALEXANDER—CRANE-FLIES FROM NEW GUINEA 587 
two uneqnal branches as in ramicornis, IT have no information on the antennae 
of the female sex of P, minima which differs in all respects of coloration from 
the present fly. 
Undoubtedly the antennae of the male of this new species will be found to 
conform to the striking flabellate type found in Ptilagyna Westwood and 
Phacelodocera Enderlein, which will probably have to be considered as represent- 
ing subgenera, with Plilogyna the oldest name. In conjunetion with the fact that 
the antennae of the female of this new species are simply peetinate whereas in 
ramicornis they are lipectinate, it may be stated that such a difference is 
undoubtedly of specific value only. Tn allied groups, sueh as Plusiomyia Skuse, 
of Australia aud New Caledonia, aud Ozodicera Macquart, of tropical America, 
the degree of branching of the antennae in both sexes varies within surprisingly 
wide limits and the structure of this organ cannot be used safely in the definition 
of generic or subgenerie groups. 
The present record is the first for any of the primitive Tipulinae having 
branched antennae in the Pupuan Subregion. Attention should be called to the 
recent discovery of two striking new species of Phacelodocera in the island of 
New Caledonia. 
Crenacroscenis Enderlein, 1912. 
CTEN ACROSCELIS PERCONTRACTUS Sp. Noy. 
Size relatively small (wing about 25 mm.) ; disk of praeseutum with four 
brownish grey stripes, the lateral borders and interspaces dark brown; flagellar 
segments with the lower face slightly produced; verticle tuberele low, with a 
dark brown spot; femora yellow, the tips blackened; wings brownish yellow, 
restrictedly patterned with darker; cell 2, strongly constricted before midlength. 
& Wing, 24-5 mm.; antenna, about 3-2 mm, 
¢ Length, about 29 inm.; wing, 26°5 mm. 
Frontal prolongation of head cinnamon brown above, somewhat darker 
on sides; nasus long and conspicuous; palpi brown, the incisures restrietedly pale; 
terminal segment short, black. Antennae with scape brownish yellow, pedicel 
yellow, flagellum brown; flagellar segments with the lower face slightly produced, 
somewhat more so in the type. Head above light brown behind, more brownish 
yellow in front, the low vertical tubercle with a dark brown spot; anterior vertex 
nearly three times as wide as the diameter of scape. 
Pronotum brown above, paler on sides. Mesonotum discoloured, its pattern 
deseribable in general terms only; disk of praeseu(um with four brownish grey 
stripes, the lateral pair elearer grey; borders of all stripes and the interspaces 
