THE CANADIAN ENTOMOLOGIST. 



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clothed outwardly with long pale hairs, on the inner or ventral 

 face with numerous black chitinized points. 



Habitat. — Phillippine Islands. 



Holotype, cf, Phillippine Islands, July. Labelled " F. Casey, 

 Wash. Thru Miss Ludlow." 



Allotype, 9 , topotypic. 



Genus Mongoma Westwood. 

 188L Mongoma Westwood; Trans. Ent. Soc. Lond., p. 364. 



Mongoma guamensis, sp. n. 



FragUlima group; colour dark brown; no white on the legs. 



Male. — Length 6.8 mm.; wing, 7.1 mm. 



Rostrum and palpi yellowish brown. Antennai brownish 

 yellow, the flagellar segments elongate, brown, clothed with abun- 

 dant pale hairs. Head grey. 



Fig. 12. — Mongoma guamensis. 



Thoracic dorsum light brown, the pleurae lighter coloured, 

 more yellowish, especially ventrally. Halteres light brownish 

 yellow, the knobs darker. Legs with the coxae and trochanters 

 dull yellow, femora dark brown, paler at the base, tibiae dark brown, 

 tarsi much paler, almost yellow. Wings hyaline, the stigma 

 ' indistinct; veins dark brown. Venation as in figure. 



Abdominal tergites brownish grey; sternites more yellowish. 



Habitat. — Island of Guam, Ladrones. 



Holotype. cf , Guam, Ladrones, D. T. Fulloway coll. No. 1385. 



This species diflers from all of the related regional species of 

 the fragillima group by the lack of white on the legs, pennipes O.S., 

 tenera O. S., and pallidiventris Brun. having the tarsi snowy-white. 

 M. cariniceps End. from Sumatra is a very different insect from 

 any of these species and is easily separated by its large size and 

 orange colour. M. albipennis Meij. from Java is larger than 

 guamensis and has the wings and veins whitish. 



