12 PROCEEDINGS OF THE NATIONAL MUSEUM vol.76 



basitarsal groove indicates greater affinity with the malayana^ popilli- 

 avora^ and agilis groups and with vernalis than with the others. 



The presence of a basitarsal groove in the female is associated with 

 stout lanceolate spines (pi. 3, fig. 22) on the outside of the 

 basitarsais, terminating in a spine of the same t5^pe at the apex. It 

 is also associated with a major calcarium which is distinctly wider 

 near the middle than toward the base, and characterizes the 

 malayana^ "pofilliavora^ and agilis groups, the species vet^nalis, and 

 all species listed with tnatura except nana^ in which the female is 

 not known. In the species lacking the groove, the outside of the 

 basitarsus is armed with spines which are more or less prickle-shaped 

 but lacks a spine of the same type at the apex, and the major cal- 

 carium of the hind tibia tapers from the base, or at least is not wider 

 near the middle than at the base. 



The verTialis complex as a whole is generalized like the popiUiavora 

 group, differing most noticeably in the male, which has the 

 mesepisternum much less densely beset with secondary punctures, the 

 radial cell far exceeding the second cubital cell, and a peculiar, 

 wedge-shaped, impunctate area on the hypopygium. 



The agilis group also is somewhat generalized, but differs from 

 the 2>opilliavora group in that they are smaller and have the tegula 

 delicate, red, and semitransparent. The mesepisternum of the male 

 is somewhat less densely beset with secondary punctures and the 

 radial cell exceeds the second cubital cell. 



In the nnalayana group the sculpturing of the pygidium is char- 

 acteristic, the pygidium being unusually smooth and free from 

 wrinkles or shagreening on the apical impunctate portion. In 

 mal^yana, the only species of this group in which the male is known, 

 the radial cell far exceeds the second cubital cell and the mesepi- 

 sternum is comparativel}^ scantily beset with secondary punctures, 

 as in venialis, but the impunctate area of the hypopygium is linear 

 and not wedge-shaped. 



In the species listed under viatura there are few characters of 

 group significance aside from those associated with the grooved 

 basitarsus. Longitegulata is a very small species with a peculiar, 

 elongate tegula. Both hiseculata and pigmentata have brightly 

 colored leg segments, but they differ in numerous characters from 

 the red-legged capillata group, from each other, and from the species 

 in which there is no bright pigmentation. 



The two species in the capillata group, although lacking the 

 basitarsal groove, are somewhat more generalized than other known 

 Asiatic species in which this condition exists, and, while they differ 



