66 SOME INSECTS INJURIOUS TO TRUCK CROPS. 



tubercles rather large, low-conical, black ; leg shields slightly smoky ; tubercle 

 vi present ; a large red blotch around tubercles i and iv on joints 5 and 12 ; 

 setse short, black, stiff; traces of a white dorsal line showing especially by the 

 cut between the red blotches at tubercle i of joint 5 ; no other lines. 



Stage III. — Head rounded, the vertex just within joint 3, pale reddish over 

 the lobes and sides, luteous on the face, shining, very small in proportion to the 

 body; width, O.G'""'. Body robust, slightly thickened at joint 5, more so at 

 joint 12 ; feet normal ; pale green ; a straight dorsal and a subdorsal white 

 line and traces of a broken lateral one ; subventral region slightly pale, without 

 defined line; tubercles small, black; a large, vinous, somewhat elevated blotch 

 on tubercles i and iv on joint 5 and on tubercle i on joint 12, more diffusely 

 about the spiracle on joints 11—12 ; anal feet reddish ; cervical shield small, 

 infuscated, cut by three vv'hite lines ; anal plate blackish ; thoracic feet blackish, 

 abdominal ones greenish. 



Stage IV. — Head rounded, rather quadrate, not notched, the clypeus high, 

 vertex even with joint 2 ; pale red, paler on the clypeus, ocelli and antennae 

 dark; width 1.0 "'"\ Body robust, thickened at joints 5 and 12, feet equal; 

 blackish olivaceous, dorsal and subdorsal lines straight, yellowish white, edged 

 with vinous dottings ; traces of a lateral line ; subventral region paler below 

 the spiracles, especially after joint 5 ; large blackish-red blotches at tubercles 

 i and iv on joint 5 and on joint 12 and tubercle i and stigma tally on joints 11-12; 

 white dotting in the ground color most conspicuous stigmatally ; thoracic feet 

 black, abdominal ones pale, anal pair reddish. 



Stage V. — Head quadrate, rounded, slightly bilobed, shining light red-brown, 

 the clypeus high; ocelli and setie black; width, l.G""'. Body thickened at 

 joints 5 and 12, feet equal, normal, the abdominal ones pale, slightly infuscated, 

 the thoracic ones black-ringed ; dark gray to black, strigose-dotted with white ; 

 dorsal line narrow, subdorsal broader, straight, even, yellowish white, centered 

 with reddish mottlings, cutting the sooty-black cervical shield, but not the anal 

 plate; a quadrate black patch between the lines on joint 5, a small angular one 

 next the subdorsal line on ail the other segments, large on joint 12 and shaded 

 across; a narrow white-dotted lateral line, scarcely different from the dots of 

 the ground color; subventral band straight, yellow-white, broad, broken at joint 

 5, reddish-fllled around the spiracles, black spots at tubercles iii with a distinct 

 white dot below ; subventral region of thorax blackish, of abdomen paler, white- 

 dotted. 



Stage VI. — Head rounded, quadrate, about as high as wide, slightly bilobed, 

 the vertex level with joint 2 ; clypeus high and large ; red-brown, darker 

 reticulate, mouth parts concolorous, ocelli black ; width 2.1 to 2.4 '""'. Body 

 robust, cylindrical, tapering from joint .j to joint 2, the head small : joint 5 

 slightly, joint 12 distinctly, enlarged and abruptly tapered to joint 13; black, 

 strigose-dotted with white; cervical shield deep black, white-dotted, cut by three 

 white lines; anal plate similar, small, cut by the dorsal line only; dorsal line 

 narrow, black-dotted and broken, yellowish white, reddish on the centers of the 

 segments; subdorsal line broader, straight, j-ellow-white, reddish centered on 

 the segments, with a median row of gray dots, but not incised on the margins ; 

 a row of segmental black triangles above it, free of white dots, largest on joint 

 5, the one on joint 12 now scarcely larger than that on joint 11 ; upper half of 

 the lateral area grayer, with many white dots, lower half blacker, with few 

 dots on joints 5 to 13, separated by a row of brighter dots representing the 

 lateral line; on joints 2 to 5 this distinction is weakly developed: spiracles in a 

 blacker shade with a white dot above tubercle iv ; substigmatal band broad, 

 even, undulate, weak and broadly gray, centered on joints 2 to 5, fading out at 



