\'ol. XXvi] ENTOMOLOGICAL NEWS 29 
A Second Bromeliad-Inhabiting Crane-fly (Tipulidae, 
Diptera). 
By Charles P. Alexander, Ithaca, New York.* 
In Entomological News for November, 191 2, the author 
described, as Mongoma bromeliadicola, a Costa Rican crane- 
fly that had been bred by Mr. Picado from larvae dwelHng in 
the water of bromehaceous plants. Since that article was 
written, specimens of a second species, allied to M. bromeliadi- 
cola, have been received from the U. S. National Museum 
through the kindness of Mr. Frederick Knab, and this species 
is characterized in this article. 
Mongoma leucoxena sp. n. 
Cross-vein r just before the fork of R2 plus 3; wings subhyaline 
with the tip a little darkened ; legs black with the tip of tlie femur 
and the base and tip of the tibia white ; all the tarsi white. 
Male. — Length, about 9.8 mm. ; wing, 8 mm. 
Female. — Length, 10.4 mm.; wing, 8.8 mm.. Fore leg, femur. 11.3 
mm. ; tibia, 12.3 mm. : tarsus, 10 mm. Middle leg, femur, 12 mm. : 
tibia, 11.3 mm.; tarsus, 8.9 mm. Hind leg, femur, 12 mm.; tibia, 11.4 
mm. ; tarsus. 7.7 mm. 
Rostrum and palpi brownish black. Antennae rather long, dark 
brown ; the flagellar segments elongate oval. Head light fawn yellow 
with an elongate dark brown mark on either side of the vertex. 
Thoracic praescutum yellowish brown with three reddish brown 
stripes, the median one narrower, darkest behind, indistinct in front; 
lateral stripes indistinct. Scutum v/ith the lobes reddish brown, the 
median space paler. Scutellum and postnotum reddish brown. Pleurae 
dull yellow, more reddish on the dorsal mesopleuritcs before the wing 
root. 
Halteres rather short, dark brown, pale at the base. 
Legs, fore pair, coxae and trochanters dull yellow, femora brownish 
black with the tip broadly white, tibia with a white basal annulus sub- 
equal in width to the femoral ring, apical third of the tibia white, re- 
mainder dark brown, tarsi white, claws brown ; middle and hind legs 
similar but the white tibial apex rather narrower including about two- 
sevenths of the segment. 
Wing subhyaline or nearly so, iridescent, the tip slightly darkened; 
stigma rounded dark brown ; veins dark brown. Venation : Cross- 
*Contribution from tb.e Fntomological Department of Cornell Uni- 
versity. 
