372 



PSYCHE. 



[July, 1902 



white space at vertex and near clypeus ; su- 

 tures dark, epistoma brownish ; widtli 11 

 mm. Body normal, rather thick, the area of 

 tubercle iv slightly cushiony elevated. Pur- 

 plish brown, tubercles iv and vii dark velvety 

 brown ; addorsal, subdorsal, lateral, substig- 

 niatal and subventral nairow, faint, dotted, 

 white lines ; two obliquely placed, round, 

 slightly elevated white spots subdorsally an- 

 teriorly on joints 5 to 7, one on 8. Lateral 

 anterior white patch of four subconfluent 

 elevated spots between the black tubercle iv 

 and the front edge of the segment on joints 

 5 to 8. A rounded, elevated, unpaired, dor- 

 sal prominence on joint 12 ; sides of 13 whit- 

 ish. Feet pale, the thoracic of joint 4 and 

 the abdominal ones, especially those of joint 

 13 black marked. Tubercles and setae small, 

 black. Venter doubly, obliquely, dark 

 streaked, forming a broad lattice work in 

 diamond shape. 



Stage IV. Head rounded, disk-like, flat 

 before, a broad margin all around, flattened 

 and shallowly notched at vertex. Face mot- 

 tled with large, subconfluent, white spots, 

 separated by black dottings and with an irreg- 

 ular black rim ; sides and vertex gray, of 

 brown mottlings on a whitish ground ; width 

 1.8 mm. Body nearly cylindrical, smooth, 

 the dark spot at tubercle iv scarcely elevated. 

 Gray, the spot at iv dark brown on joints 5 to 

 10; venter lighter with irregular dotting, 

 suggesting a diamond pattern. Dorsum 

 finely lined and marbled with blackish on a 

 grayer ground, the bright white dots two 

 subdorsal and two above, a streak below the 

 stigmatal region, both anterior, conspicuous 

 on joint 6, smaller and parth' absent on the 

 otiicr segments. Tubercles in black spots ; 



setae very short, pale brown. Ground color 

 luteous gray, the area about llie dark tuber- 

 cles i lighter, looking tessellated. 



Stage V. Head rounded, somewhat flat 

 before, thick, slightly bilobed ; whitish, 

 mottled with gray-luteous, white on face, 

 black bcn-dered, dotted, the black edge de- 

 pressed to apex of clypeus, covering the apices 

 of the paraclypeal pieces ; epistoma greenish ; 

 width 2.7 mm. Body normal, thick, equal 

 and cylindrical, a cylindrical papilla bearing 

 tubercle ii on joint 12 about twice as long as 

 thick ; tubercle iv of joint 12 elevated and 

 white. Anal plate large, rounded triangular ; 

 anal foot plates elongate triangular. Thora- 

 cic feet moderate, pale. Subventral fold 

 waved, distinct. Ocherous wood brown, the 

 dorsum checkered in large segmentary dia- 

 monds, edged by lateral waved black mot- 

 tlings that reach the subdorsal region inter- 

 segnientally and depressed to tubercle iii 

 segmentarily, nearly absent on joints 10 to 

 13. Thorax darker brown, obscurely. Two 

 rounded, obliquely placed, small white spots 

 on joint 6 and white dots behind tubercle ii 

 throughout ; white dots behind tubercle iv 

 and, on joint 6, several dots before the spira- 

 cle. A slight transverse ridge on joint 12 

 bearing the papillae (ii), black before, white 

 behind. Subventral ridge slightly pale. 

 Venter marked like dorsum with a black 

 mottled lattice on a brownish ground, but 

 less distinctly. Tubercle i black marked, 

 distinct in the pale brown areas. 



Food plant. The larvae ate wild cherry. 



Eggs from a $ taken at the mouth of the 

 Platte Canyon, twenty miles from Denver, 

 Colorado; eggs June Sth, mature larva July 

 8th. 



A. SMITH & SONS, 146-148 WILLIAM ST., New York. 



llMMFA(Trili:ilS AM) IMPORTERS OF 



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