no. 3644 TIPHIIDAE — KROMBEIN 7 



pleuron strongly and closely ridged on upper half; genitalia with inner 

 surface of squama and cuspis volsellaris densely setose, cuspis volsellaris 



digitate at apex; Java tricolor lieftincki, new subspecies 



Clypeal keel simple, present only on basal three-fourths, the marginal clypeal 

 teeth absent or weaker; metapleuron on upper half smooth or with fine, 



close ridges only 11 



11. Distance between hypostomal and occipital carinae about half the hypostomal 

 length; clypeal teeth lacking, the apical margin rounded out in middle; 

 fiagellum entirely black; genitalia with inner surface of squama and cuspis 

 volsellaris not densely setose, cuspis volsellaris very slender and curved, 

 lamina volsellaris on ventral margin with three long, stout setae, paramere 

 with a small blunt tubercle on inner ventral surface halfway to apex; 



Borneo, Sumbawa, Borneo shuckardi (Turner) 



Distance between hypostomal and occipital carinae subequal to hypostomal 

 length; median clypeal teeth moderately developed, the apical margin 

 shall owly emarginate between teeth; two or more of basal flagellar segments 

 red; genitalia with inner surface of squama and cuspis volsellaris densely 

 setose, cuspis volsellaris broad and truncate at apex, lamina volsellaris 

 with fine setae only, paramere without tubercle; Ceylon, India, Burma, 

 Malaysia, and Philippines, but apparently not Borneo . longiceps (Turner) 



Hylomesa tricolor tricolor (Smith), new combination 



Plate 1 (figs. 3, 7) 

 Myzine tricolor Smith, 1858, p. 91.— Dalla Torre, 1897, p. 128. 



Smith described tricolor from a unique female from "Borneo 

 (Sarawak)" that I have examined in the collection of the Hope 

 Museum at Oxford University. Most of the subsequently published 

 references to tricolor actually are referable to shuckardi (Turner) 

 except for that cited above from Dalla Torre's catalog. The mis- 

 identifications were based on a female of shuckardi from Borneo in 

 the British Museum collection misidentified as tricolor and considered 

 erroneously to be the type of Smith's species. 



Hylomesa tricolor and H. shuckardi are the only Oriental species 

 in which the females have the hind tibia armed apically on the inner 

 surface with four short, flattened setae. Also, they are the only known 

 Hylomesa from Borneo. The rounded posterolateral angles of the head 

 beneath, the lack of a median clypeal process, and the rounded median 

 angle of the posterior margin of the hind femur readily distinguish 

 tricolor from shuckardi. The genitalic characters separating the males 

 are the densely setose inner surfaces of the squama and cuspis vol- 

 sellaris of tricolor lieftincki as contrasted to the very sparsely setose 

 condition of these parts in shuckardi, and the different conformation 

 of the parts. 



There are two races of tricolor, the typical one from Borneo, and 

 H t. lieftincki, new subspecies, from Java. In the Bornean race the 

 median teeth on the apical border of the clypeus are weaker as is 



