Occasional Papers of the Museum of Zoology 43 



areas. In a still more mature teneral the face, as well as 

 frons above and vertex in front, is orange, though the pale 

 thoracic markings remain cream colored or rather livid, with 

 scarcely a trace of yellow ; the black of the vertex is not re- 

 duced in area or density. 



Female. — Pale markings of head, prothorax and the thorax, 

 and to a lesser extent of abdomen, pale dingy cream color ; 

 genae brighter, lemon yellow ; labrum, nasus, frons at either 

 extremity, first joint of antenna in front, a large area against 

 the eye opposite each antenna, and more or less of the vertex, 

 black ; frons brown or dark green, more or less distinctly pale 

 in front ; labrum with a large basal median pale spot and some- 

 times the general color brown instead of black; vertex black 

 posterior to the frons and in front of the median ocellus over 

 approximately the area which is metallic orange in the male ; 

 the region of the ocelli and the rear of the vertex is black, 

 sometimes with obscure brown or pale areas especially along 

 the eyes, leaving a large and variably shaped pale area be- 

 tween the region of the ocelli and the eye. Antenna with sec- 

 ond joint brown or black, distal joints brown. Profile similar 

 to figure 64. 



Prothorax patterned as in the male, except that the lateral 

 pale areas on the hind lobe are more extensive, isolating the 

 median black as a large more or less rounded spot. Pro- 

 pleuron pale, tinged lemon yellow. 



Thoracic pattern similar to that of the male, the light and 

 dark pattern never lost above by darkening as it often is in the 

 males; the humeral pale stripe crosses the mesinfraepisternum, 

 and the black stripe on the mesepimeron fades out indefinitely 

 below but continues as a variable brown or dusky area on 

 the mesinfraepisternum ; a dusky area above on the mes- 



