Tune, 1916.] Alexander: New LniNOPHiLiNE Crane-Flies. 120 
Dr. R. W. Marchand. The teiit-trap observations made at Ithaca, 
N. Y., in 191 5 by Miss Ruby B. Hughes indicate that the larvae of 
Limnophila aUciii live in wet organic mud. 
I, Larger (wing, 5> 21.5 mm.) ; thoracic dorsum reddish brown with three 
velvety brown stripes, the middle one narrowly split by a line of the 
ground-color ; wings yellowish and brown ; basal abdominal tcrgites yel- 
low without prominent setigerous punctures L. alleni Johnson. 
Smaller (wing, 5> 20 mm.) ; thoracic dorsum gray with three narrow 
velvety-brown stripes, the middle one split by a broad pale line ; ground- 
color of the wings hyaline ; basal abdominal tergites gray with prominent 
setigerous punctures L. marchandi, n. sp. 
Limnophila mundoides new species. 
Black, the thoracic dorsum shiny ; wings hyaline or nearly so ; femora 
yellow, the anterior pair with the apical half black; hypopygium of the male 
enlarged, complex in structure. 
Male. — Length, 5.6 mm. ; wing. 6.2 mm. 
..Nostrum black, very short, palpi brownish black. Antennae black, short, 
.ne first segment elongated, the flagellar segments elongate-oval. Head black. 
Thorax shiny black. Halteres white. Legs slender, the coxae dull yel- 
low, the base of the fore coxa suffused with black on the outer face ; tro- 
chanters dull yellow ; femora not conspicuously hairy, fore femora with the 
basal half yellow, the apical half dark brown ; middle femora with the basal 
two thirds yellow, the apical third dark brown ; hind femora yellow, the tip 
narrowly browned ; tibiae brown ; tarsi dark brownish black. Wings hyaline 
or nearly so, the stigma indistinct, the veins dark brown. Venation as in 
plate I, fig. 3: Sc short, ending just before the tip of the sector; Sc. close to 
the tip of Sci; Rs long; R.+s very short, subequal to the basal deflection of 
Ri-m ; Afi+j beyond in about equal to cell M, ; basal deflection of Cm, almost 
underneath the middle of cell ist M^. 
Abdomen black, the sternites somewhat paler. Male genitalia remarkably 
developed for this genus of flies, this condition approached by no Nearctic 
species hitherto described but suggesting in some respects the condition ob- 
taining in Phyllolabis O. S. and Oromyia Alex. The ninth tergite arched, 
convex, produced caudally into a prominent median lobe which is slightly 
enlarged apically and truncated to slightly concave across the tip ; sides of the 
tergite with numerous very long, prominent hairs ; the ninth sternite is not 
distinct from the tergite, produced caudad on the mid-line beneath into a 
prominent bifid lobe which bears an abundance of very short pubescence and 
a few long hairs; ninth pleurite complete; pleural appendages two, a caudal- 
lying, very slender, slightly curved chitinized lobe that is directed caudad, the 
tip inward ; the anterior lobe is densely hairy on the outer face, the apex 
chitinized. Just dorsad of the bifid sternal appendage, on either side, arises 
a prominent flattened lobe with exceedingly abundant long black hair and 
numerous punctulations ; the ventral apical angle of this lobe is pale and 
produced into a short hook directed inward. 
