(1^ ' 
Xo. 5.— NEW AND LITTLE KNOWN TIPULIDAE. 
BY CHARLES W. JOHNSON. 
The following notes and descriptions are the results, in part, of 
determining species for several faunal lists in course of preparation. 
Owing to insufficient material some portions are not entirely satisfac- 
tory, but it seems better to call attention to these interesting species 
rather than to omit them, for they cannot be inserted without some 
explanation or description. 
During my last summer's collecting at Riverton, New Jersey, 
(1902), a number of large Tipulid larvae were found about the middle 
of Jvme, in a spring run flowing into Pompeston Creek about a mile 
above the railroad bridge. A few were taken hoping that they would 
soon pupate, but the change from the cold water of the spring to that 
of the Schuylkill was fatal. I therefore resolved to visit the locality 
whenever possible and endeavor to capture some adults. On July 20, 
five males of a large, unknown Tipulid Avere taken close to the spring 
run. On a second visit, one week later, none were to be found. The 
specimens were set aside, as I hoped during another season to obtain 
more material. Leaving Philadelphia in ]\Iarch, 1903, I have not had 
the opportunity further to study the matter and can only present the 
following facts for future investigators. 
The specimens represent a very interesting species having antennae 
resembling those of Longurio, but with a venation that will not permit 
of its being placed in that genus nor in the genus Tipula. The geni- 
talia are also very different from those of either of the above genera. 
The following generic name is therefore proposed: — 
Aeshnasoma new genus. 
Antennae short, apparently twelve-jointed,' second joint globose, 
the three basal joints of the flagellum ovate, gradually diminishing in 
size, with a slight basal contraction; the remainder of the flagellum 
very slender, the joints scarcely perceptible, with long hairs irregularly 
verticillated toward the end. Wings with the branch of the subcosta 
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