272 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxm. 



GONODONTA UNICA Neumoegen. 



Egg. — Shape of two-thirds of a sphere; reticulations small, irregu- 

 larly pentagonal, linear, pale; no ribs; diameter, 0.65 mm. Laid scat- 

 teringlv over the leaves singly or in groups, numerously, a very large 

 proportion being destroyed liy parasitic Hymenoptera. 



Stage II. — Head round and broad, thin, especially above, scarcely 

 bilobed; sooty black, labrum narrowh^ white. Body cylindrical, 

 thickened at joints 5 to 7 and 12, which is well humped, the sides of 

 joints 6 and 7 folded and projecting; abdominal feet on joints 9, 10, and 

 13. Sooty black, joints 9 and 10 a little greenish, with black dorsal 

 line; a pure white subdorsal fleck on joint 2; four lateral ones on joint 

 8, the two upper ones large and joined by a bar, the second centered 

 by a black tubercle (iii); a bright orange, oblique, subdoi-sal spot on 

 joints 5 and 6, and a rounded one on joint 12. SetiB short, black. 

 Segments annulate near the incisures. 



Stage III. — Head round, bilobed, sooty black, the labrum white; 

 width, 1 mm. Body greatl}" hunched at joints 3 to 7, forming a 

 rounded, thick loop, the bases of feet of joint -1 touching the venter of 

 joint 8; joint 12 enlarged triangularly. Abdominal feet short and 

 small, none on joint 7, a small pair on 8, distinct feet on 9, 10, and 13. 

 Purplish black, annulate, spotted with orange and white. The white 

 spots are a large lateral one on joint 2, a small one on edge of cervical 

 shield, a lateral patch on joint 8 in part; the orange spots are oblique 

 subdorsals on joints .5 and 6, lateral patch on joint 8 in part, subven- 

 tral spots on joints 8 to 10, and a rounded subdorsal spot on joint 12. 

 Later line transverse white lines appear between the obscure annulets. 



Stage IV. — Head bilobed, free from the prothorax; sooty black, 

 bases of antennae and labrum whitish; clypeus not reaching half way 

 to the vertex; width, 1.8 mm. Bod}" cylindrical, nearl}'^ uniform, but 

 well looped up at joints 5 to 8; joint 12 enlarged dorsally. Feet of 

 joint 8 small, functionless, normal on 9, 10, and 13. Body marked in 

 the pattern of the genus Alypia. Black, finely transversely lined with 

 white, 15 to 20 lines per segment, some continuous, some confused and 

 broken, subreticulate. Those below the slight subventral fold run 

 longitudinal!}' and are more reticulate; cervical shield obsolete, con- 

 colorous, a white spot on each side. Subdorsal orange spots, partly 

 white bordered, on joints 5,6, 8, to 12; also small ones on 9 to 11. 

 Similar spots on the subventral fold on joints 7 to 12, largest on joints 

 8 to 10. Anal flap and l)ases of feet concolorous, white reticulate. 

 Thoracic feet lilack. 



Stage Fi— Head rounded bilobed, full, clypeus shield-shaped, reach- 

 ing less than half way to vertex; width, 2.7 mm.; sooty black, epis- 

 toma white. Body as before, the cervical shield black, white-lined, 

 with dorsal, subdorsal, and lateral large white spots. Body black, 





