4 



BULLETIN 1336, U. S. DEPARTMENT OF AGRICULTURE 



the female antennae; and the frenulum on the male wings consists of 

 one long, strong spine, as compared with two small, diverging spines 

 on the female. (See fig. 3.) 



The technical description of the adult by Smith (11) follows: 



Fig. 2. — Adult of the green clover worm. Enlarged 



Ground color a dark purplish or smoky brown. Head and thorax concolorous. 

 Abdomen more smoky, like the secondaries. Primaries dusky to the transverse 

 posterior line, then with bluish powderings, which scarcely relieve the somber 

 tint in the male, but are quite contrasting in the female. In the latter sex the 

 inferior half of the median space often becomes shaded with yellowish red-brown, 

 sometimes quite contrastingly. Transverse anterior line red-brown, preceded by 



pale in the best marked specimens, outwardly 

 bent, with three long outward angulations, 

 rarely complete, and in the male quite frequent- 

 ly entirely obsolete. Transverse posterior line 

 black or brown, outwardly bent over the cell 

 and almost rigid beneath. The line is marked 

 through the lower part of its course by ele- 

 vated scales, which are most prominent on the 

 inner margin. Subterminal line interrupted, 

 pale, preceded by black spots, rather evenly 

 bisinuate, often quite contrasting in the female, 

 and as inconspicuous in the male. A brown 

 terminal line, which is rarely interrupted, 

 preceded by undefined bluish lunules in the 

 interspaces. In the male the apex is blue 

 powdered, the terminal space else quite even. 

 In the female the apical patch is more contrast- 

 ing, inferiorly limited by a blackish streak, the 

 terminal space being irregularly and variably 

 mottled with bluish brown and black. Opposite 

 I<ig. 3— Frenulum of moth of green clover tho hind ans-lp is a lnno-itiiHinfll hlnnk rnark 

 worm: Left, male; right, female. Much ™ e . t Llna an g ie IS a longitudinal DiacK marK, 

 enlarged which crosses the subterminal line. Usually a 



narrow black line connects the median lines in 

 the submedian interspace, and another connects the ordinary spots, which are 

 much reduced and marked by black elevated scales. The basal space is also 

 sometimes blue powdered or inferiorly brown. In the male the ordinary spots 

 are sometimes hardly evident. Secondaries deep smoky-brown, varying a little 

 in tinge toward brown or black. Beneath, uniformly brown or blackish; the 

 secondaries with a more or less evident discal spot. 

 Expanse of wings, 27 to 34 mm.=1.10 to 1.35 inches. 



