824 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxvii. 



reticulations and nearly straight vertical bands; width, 1.1 mm. Body 

 moderate, without shields, joint 12 well enlarged. Dorsum of joints 

 3 to 13 violaceous pink, the white dorsal and subdorsal lines black 

 edged and with faint oblique black shades forming cuneiform dashes 

 on joints 11 and 12, especially on 12. Joints 2, 13, and the sides 

 heavily mottled in black; substigmatal ])and pure white, narrowly 

 pinkish tilled. Feet pale with smoky shades; tubercles black, indis- 

 tinct; setse obscure. Anal flap dihited paler. 



Stage Y. — Head shining whitish luteous with distinct reticulations 

 and broad vertical bands of smoky brown; width 2.2 nun. Joints 2, 

 13 and anal feet mouse brown with three white lines. Body moderate, 

 joint 12 well enlarged. Dorsum carneous violaceous with black cunei- 

 form subdorsal marks on joints 3 to 12, largest on joint 12, squarely 

 cut behind. Dorsal and subdorsal lines white, yellow tinted, ])lack 

 edged intersegmentally; tubercles i and ii white. Sides above vio- 

 laceous, heavily black mottled, below solidly black. Substigmatal 

 band yellow, white at the borders, violaceous carneous tilled. Feet 

 pale carneous. 



Stage YI. — Head rounded, shining pinkish brown, clypeus unspotted, 

 vertical bands each side of it curved, broad, black, the sides reticulate 

 and with a slight narrow band from ocelli; width, 3.4: nun. Body 

 moderate, joint 12 scarcely enlarged; cervical shield and ana] plate 

 large, bright red brown, contrasted, the cervical shield darker shaded 

 before and with three faint yellowish lines, anal plate with subdorsal 

 line. Body dark lilaceous brown, nearl}- uniformly black penciled, 

 forming a series of oblique subcuneiform sul)dorsal bars, faint on the 

 thorax, ending at joint 12 with a transverse white line. A stigmatal 

 black line, broken segmentarily. Dorsal line narrow, white, obsolete 

 centrally on the segments, faintly dark edged; subdorsal line broader, 

 yellow, distinct, interrupted intersegmentall}^ and tending to follow 

 the oblique subdorsal black bars, faint on the thorax, ending on 

 joint 12. Substigmatal band with 3'ellow and white upper edge, dark 

 pink filled below; subventral space dull lilaceous. Feet pale, thoracic 

 ones brown. Tubercles and seta? obscure. 



PERIDROMA NIGRA Smith. 

 Thirteen specimens, Jidv 3U, August 5, t;, 7, 11, 12, 15, 17. 



PERIDROMA MARGARITOSA Haworth. 



Fifteen specimens, June 2, 4, 11, 13, 16, 25, 30, July 8, August 7, 

 11, 17. The species was rare, but Mr. Cockle sa^^s it was a perfect 

 pest the 5^ear previous, and thousands of Qgg masses could be seen. 

 He attributes the scarcit}^ of the species in 1903 to the destruction of 

 the hatching larva? by early rains. Eggs were ol^tained and a brood 

 of the larvae raised, exhibiting- the usual well-known characters. 



