10 PROCEEDING OF THE NATIONAL MUSEUM vol. 124 



with coarse, subcontiguous pits on upper two-thirds; metapleuron 

 with close parallel ridges above; dorsal propodeal surface with a 

 narrow, median channel, laterad of this a strip of small contiguous 

 pits, and further laterad with scattered pits; lateral propodeal surface 

 with moderate-sized, crowded pits; posterior surface ridged above 

 and with mostly contiguous pits. 



First tergum moderately ridged anteriorly, behind which is a row 

 of confluent punctures, sparsely punctate elsewhere; terga each with 

 an apical row of stronger setae than in other species except shuckardi; 

 sterna 3-6 with short, erect, moderately dense vestiture. 



Genitalia with inner surface of squama and cuspis volsellaris densely 

 setose, cuspis volsellaris digitate at apex; lamina volsellaris with rela- 

 tively fine setae only; paramere without tubercle on inner ventral 

 surface halfway to apex. 



Holotype. — 9, Mt. Semeroe, R. Daroengan, southeast Java, 800 

 meters elev., 6-13 June 1941, M. A. Lieftinck (RNH). 



Allotype. — cf, K. O. Blawan, Idjen Plateau, Java, 900-1500 

 meters elev., 25 April 1936, H. Lucht (RNH). 



Paratypes. — 4 9, same data as type (RNH, USNM). 1 9, Java, 

 Muller (RNH). 



Female paratypes are 18-21 mm long and are very similar to the 

 type in all essential details; the ocellocular distance is 2.3-3.0 times 

 the postocellar distance and 0.54-0.62 times the ocelloccipital distance. 

 One paratype bears a label stating that eight examples were taken 

 on flowers of Araliaceae in a dense forest; only five of these are before 

 me. 



Hylomesa shuckardi (Turner), new combination 



Figure 5; Plate 1 (figs. 2, 6) 



Myzine tricolor Smith. — Bingham, 1897, in part, p. 66 [the specimen from Borneo]. 

 Elis {Mesa) tricolor (Smith). — Turner, 1912, in part, p. 720 [the specimen from 



Borneo]. 

 Elis (Mesa) tricolor tricolor (Smith). — Turner, 1918, pp. 87-88 [the specimen from 



Borneo]. 

 Elis (Mesa) tricolor shuckardi Turner, 1918, pp. 87-88. 

 Mesa tricolor (Smith). — Guiglia, 1965, p. 316. 



Turner's interpretation of this species is exceptionally misleading. 

 He stated that in tricolor shuckardi the clypeus was "depressed in 

 the middle" and not carinate, failing to note that part of the clypeus, 

 including the median process, had been broken off when someone 

 extended the mandible. The flattened exposed labrum beneath thus 

 gives the clypeus the superficial appearance of being depressed and 

 unarmed. 



Actually the female of shuckardi is the most easily distinguished 

 of the several species of Hylomesa. In other species the clypeus has 



