36 



the paraclypeus pale. Body normal, gently enlarged at joints 3-5, and 12, rather 

 robust; feet small, normal. Shields membranous, tubercles and seta? minute. 

 Green, shaded with vinous brown, especially on dorsal line and subventrally. Dor- 

 sal line white, narrow, spotted with vinous shading; upper subdorsal narrow, lower 

 broad, both white, the latter angled on the hump of joint 12; a black spot between 

 them on joint 3. Lateral line narrow, white, with a fainter line above it; a faint 

 suprastiginatal white line; substigmatal lines parallel, narrow, white, waved, joined 

 into a sharp-edged band by vinous shading. Subventer faintly vinous shaded, white 

 dotted. A square lateral black patch on joint 5. Concolorous cervical shield cut by 

 three white lines. Feet plates brown. 



Stage V. — Head as before, shining dark brown, paler on the sides, paraclypeal 

 pieces contrastingly pale. Body as before, the enlargements less marked. Shaded 

 with brown and vinous, obscuring the gromid color, sparsely white strigose between 

 the lines. Lines distinct generally. Dorsal line narrow, broken, vinous edged, 

 obscure; upper subdorsal likewise narrow and reduced; lower subdorsal broad, dis- 

 tinct, edged above by segmentary brown patches, fainter than but similar to the one 

 on joint 3; upper and lower lateral lines broken, mottled, but not obscured; supra- 

 stiginatal line fine and broken; subventral line narrow, waved, centered by red 

 about as before. Cervical shield and anal plate brown, trisected in white. Feet 

 brownish. Lateral patch on joint 5 brown-black, distinct. 



Stage VI. — Head broad, rounded, bilobed, clypeus large, reaching over two-thirds 

 to the vertex; brown, dark on the face, cut by the pale contrasting paraclypeal 

 pieces. Body cylindrical, normal, shaped as in commelinss. Densely and finely 

 mottled with whitish dots on a brown ground, the marks as before but better defined. 

 Dorsal line diffuse, red, obscurely pale centered; subdorsal distinct, broad, yellowish 

 white, faint on joint 2, surmounted by a row of triangular brown spots on joints 3-13, 

 cut pulverulently by the broken upper subdorsal and separated by pale interseg- 

 mental shades. Lateral area on joints 5-12 marked by upper and lower lateral 

 lines, the lower broader but both subconfluent by mottlings with each other and the 

 lower subdorsal, scarcely developed on joints 2-4 or 13. A faint suprastiginatal 

 mottled and broken line. Substigmatal band, broad, red, white dotted, edged by the 

 narrow lines; subventer white dotted. Shields and plates pale brown, the cervical 

 faintly trisected by white; spiracles black. A brown patch on joint 5 between the 

 lower lateral line and spiracle. Tubercular formula as in commelinx. [H. G. Dyar.] 



From the description which has been given of the larva of comme- 

 Imce in treating of that species, enough has been said to show that the 

 principal difference between these two species consists in the greater 

 striation of ornithogalli and in the fact that the dorsal velvety spots 

 are many of them lost in the last two molts. The question of the 

 separation of these three forms of larvae can best be expressed in 

 tabular form as follows: 



Ground color gray, closely streaked with fine, very irregularly undulating lines. 

 Upper line of latero-dorsal stripe always interrupted, usually yellow, the 

 lower line faint or absent. 



Longitudinal stripes not strongly marked commdinas. 



Ground color similar. 



Upper line of latero-dorsal stripe, usually more or less continuous, often 

 white or very pale yellow, lower line distinct, though narrow. 



ornithogalli. 

 Ground color darker, and all stripes and other markings more pronounced and 

 more beautiful, but the arrangement is little, if at all, different. 



eudiopta. 



