PINK BOULWOEM OF COTTOX IN MEXICO. 



61 



Frontal punctures (Fa) close together, anterior to frontal setse (F 1 <, : distance between 

 punctures less than distance between puncture (Fa) and setse (F/j; frontal setse (F x ) 

 and adfrontal setse (Adij and Adf 2 ) nearly equidistant: second adfrontal seta (Adf 2 ) 

 approximate to but before beginning of longitudinal ridge (LR) ; adfrontal puncture 

 (Adfa) midway between adfrontal setse. 



Epicranium with normal number of primary setae, 13, and punctures, 7, and with 

 three small ultraposterior punctures 8 (x, y, and z). 9 



Anterior setse 10 (A 1? A 2 , A 3 ) in a slightly obtuse angle; A t and A, closer together 

 than A, and A 3 ; anterior puncture (Aa) between A a and A,. Posterior setse 11 (P v P 2 ) 

 and posterior punctures ('Pa, Pbj near the middle of the head; P x on the level with 



B 



Fig. 7. — Pink bollworm: A, Venation of forewing; B, venation of hind wing. (Busck.) 



adfrontal puncture 12 ; P 2 posterior to Adf 2 . Pa equidistant from P : . A 3 and the lateral 

 seta (Lj) remote from the anterior group, nearly on the level with P x ; lateral seta (Lj) 

 remote from A 3 , nearly on the level of Pb ; lateral puncture (La) posteroventral to the 

 seta, remote. Of the ocellar setse (0 1; 2 , 3 ), 13 1 is equidistant from and lateral to 

 ocelli ii and iii, 2 is closely approximate and posteroventral to ocellus i ; 3 is directly 

 ventral and remote from 2 , on a line with ocelli v and vi; ocellar puncture (Oa) be- 

 tween 3 and ocellus vi. approximate to latter. Subocellar setse (Soj. So 2 , So 3 ) 

 triangularly placed, nearly equidistant: subocellar puncture (Soa) between and equi- 

 distant from So 2 and So 3 . Genal seta (G t ) and puncture (Ga) both present; puncture 

 anterior to seta. 



Labrum (fig. 5, F. G) with median incision rather deep and evenly rounded. The 

 three lateral setae (La 1; La^, La 3 ) close to edge. La x and La 2 closely approximate, 

 La 3 remote: median setse (M ls M 2 , M 3 j in the usual Micro arrangement with M 2 lateral 

 and slightly posterior to M, : M 3 close to anterior margin on a line with La 3 ; M 1 and 

 M 2 on a line respectively with La 2 and La x . 



8 The nomenclature of the head setae has been adopted from Heinrich [Heinrich .Carl. On the taxonomic 

 value of some larval characters in the Lepidoptera. In Proc. Ent. Soc. Wash. y v. lS.no. 3, p. 154-164, illus. 

 1916.] with certain minor modifications, noted in the following footnotes and concurred in by Mr. Heinrich. 



9 So-called ''secondary punctures" of Heinrich, sometimes bearing minute setae. 



10 Anterodorsal setae of Heinrich. 



11 Posterodorsal setae of Heinrich. 



12 The term " on the level with " is used in these descriptions as the head setae are seen infrontal projec- 

 tionCPl. V, A); anything abovea level is termed "posterior "and anything below is termed "anterior." 



1 3 Heinrich's numbering reversed. 



