ABT. 16 BUDWORMS OF GENUS HELIOTHIS CRUMB 5 



disparity in size elsewhere, both tubercles clothed with spinules 

 especially on the above abdominal segments, color variable, often 

 green with dark tips. Cervical shield usually green flecked with 

 white, the lateral margins sometimes infuscated. Anal shield con- 

 colorous with adjacent parts. Head of the general coloration, some- 

 times with pale brown tessellation and occasionally reticulated with 

 white, no fuscous submedian arcs or reticulation. Claw of legs with 

 the base broadly angulate. Ijength of segments of labial palpus in the 

 proportion of 16. 4, and 4, the basal segments with a long acutely 

 conical papilla apically. Spinneret about seven times as long as the 

 median breadth, tapering toward the truncate apex. Mandible as 

 in Figure 9, usually with a broad, convex part on tlie oral face, 

 produced from the base and along the first ventral rib with the broad, 

 often serrate, apex toward the cutting margin of the mandible. 

 Anterior half of hypopharynx clothed sparsely with very short stout 

 spines, heavier postero-laterally; lobes of the maxillulae clothed with 

 extremely fine hairs; blade of the maxillulae with about 12 flat, tri- 

 angular, toothlike processes on the free margin. 



Head setae and punctures as follows: A2 equidistant from A 1 and 

 A3, or nearer to A3; Aa slightly nearer to A3 than to A2; A3 less 

 than the ocellar width removed from ocellus II; Pa, Aa, and A3 not 

 in a straight line; Pb scarcely twice as near to P2 as to Pi; ocellus 

 VI nearer to 01 than to 03; 02 nearer to A3 than to Ll ; 02 approxi- 

 mately equidistant from A3 and 01; Ll distinctly nearer to La than 

 to 02; SOa nearer to 302 than to S03; S03 distinctly nearer to 03 

 than to Gl. 



Material. — Described from a large number of larvae from Clarks- 

 ville, Tenn., and Quincy, Fla. 



Distribution. — Moths have been seen from Virginia, Tennessee, 

 Colorado, California, North Carolina, Florida, Louisiana, and 

 Mexico. 



Food plants. — The known food plants include tobacco buds, leaves, 

 and seed capsules, Physalis viscosa, Rhexia virginica, Linaria cana- 

 densis, okra, Geranium, and Ageratum, 



HELIOTHIS PHLOXIPHAGA Groteand Robir.'mn 



The following distinctive characters of this larve may bo noted: 

 Dorsal setigerous tubercles (I and II) on abdominal segments 1, 2, 

 and 8 not set with the spinules with which the skin is clothed. Tu- 

 bercle I but very slightly larger than II on the above abdominal 

 segments. Tubercles I, II, and III strongly elevated, conical, on 

 all abdominal segments. Head 2.2-2.5 mm. broad (probably flfth 

 instar). Each mandible with a slight produced margin along the 

 first ventral rib and without a basal process. Spiracles on abdominal 

 segments 1 to 7, 0.22 mm. broad. Seta A3 distinctly more than the 

 width of the ocellus removed from ocellus II. Line connectmg the 



