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Vol. XX vi] ENTOMOLOGICAL KEWS 29 



A Second Bromeliad-Inhabiting Crane-fly (Tipulidae, 



Diptera). 

 By Chaslbs^. Alexander, Ithaca, New York.* 

 In Entomological News for November, 1912, the author 

 described, as Mongoma bromrliadicola, a Costa Rican crane- 

 fly that had been bred by Mr. Picado from larx-ae dwelling in 

 the water of bromeliaceous plaots. Since that article was 

 \* ritten, specimens of a second species, allied to A/, brofmriiadi' 

 cola, have been received from the U. S. National Mtiaeum 

 through the kindness of Mr. Frederick Knab, and this species 

 is characterized in this article. 



Mongoma leucozena sp. n. 



Cro»»-vrin r just before the iofk <>i nj pin* 3; wmg» suiihyahnr 

 with the tip a little darkened: leg* black with the tip of the femur 

 and the ba«c and tip of the tibia white; all the taru white. 



Male.— Length, about 9A mm.: wing. 8 nmi. 



Female.— Length. 104 nun.; wing. &8 mm. Fore leg. femur. 11.3 

 mm.: tibia. 12.3 mm.; tmrmt. 10 mm. Middle leg. femur, la mm.; 

 tibia. 11.3 mm.: tarstu, &9 mm. Hind leg. femur, la mm.; tibia. IM 

 mm. : tarsus. 7.7 imn. 



Rostrum and ptlpl browniali b k dc Antennae rather kmg. dark 

 brown ; the flagcOar tumsiiti doofate ovaL Head light fawn jrctknr 

 with an elongate dark brown mark on either tide of the vertex. 



Thoracic pracscutum yellowish brown with three reddish brown 

 median one narrower, darkest behind, indistinct m front; 

 1. ;i>es indistinct. Sentam with the kibes reddish brown, the 



nir<it.in space paler. SWrutellum and p os tn o tum rcdftsh brown. Pleurae 

 .lull >'enow, more reddish on tfie dorsal m#.««f»l«ir;i«.« hffnrr the wing 

 root. 



Haltere* rather short dark brown, pak at the iia«e 



Legs, fore lair. coxae and trodiantert dull yellow, femora brownish 

 black with the tip broadly white, tibia with a white basal annuhi« sub- 

 equal in width to the femoral ring, apical third of the tibia white, re- 

 mainder dark brown, tarai whhe. chiwt brown; middle and hind legs 

 ' !e tibial apex rather narrower inchiding aboot two- 

 'Twnt. 



rarly to^ iridescent, the tip sKghtly darkened; 

 »t ,. Miwn; veins dark brown. Venation: Cross- 



*Contributk>n from the Entomofegical Department of Corndl Uni- 

 versity. 



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