PINK BOLLWORM OF COTTON IN MEXICO. 
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seen to have four teeth (fig. 5, A-D) and the crotches on the abdominal prolegs form a 
partial circle or horsehoe, opening outwards (fig. 5, i7), the caterpillar will most 
probably prove to be the pink bollworm. 
Again, if, within a cotton boll or otherwise associated with cotton in the field or in 
the mill, a small lepidopterous pupa is found, which under the lens is found to be 
entirely covered with a short velvety pubescence and to possess a short, curved, up- 
turned hook at the posterior end (fig. 6. A-D), it may with considerable certainty be 
determined as a pupa of the pink bollworm. 
Fig. 5.— Pink bollworm: A, Right mandible of larva from underside. B, Left mandible from underside. 
C, Right mandible from upper side. D, Left mandible from upper side. F, Left antenna of larva from 
underside: 1, First joint; 2, second joint; 8, third joint; 4, fourth joint. F, Epipharynx of larva: ES, 
Epipharyngeal shield; FT, epipharyngeal seta; r, epipharyngeal rod. G, Labrum of larva: Lai, 
Lateral labral seta 1; Lai, lateral labral seta 2; La$, lateral labral seta 3; M\, median labial seta 1; JI/2, 
median labral seta 2; M%, median labral seta 3; p, labral punctures; r, epipharyngeal rod. H, Underside 
of third abdominal segment of larva. (Busck.) 
GENERIC DESCRIPTION. 
Pectinophora, new genus (Gelechiidae). 
Type: Gelechia gossypiella Saunders. 
Moth. — Face and head smooth. Labial palpi long, recurved, reaching above vertex; 
second joint thickened on the underside with slightly furrowed brush, which is evenly 
attenuated toward apex; terminal joint shorter than second, somewhat thickened 
with scales in front, compressed, pointed. Maxillary palpi minute, deflected. 
Tongue long, spiraled, scaled in its entire length. Antennae serrated and finely cili- 
ated on the underside; basal joint with heavy but sparse (5-6) pecten. Thorax 
smooth. Forewings (fig. 7, A) elongate ovate, pointed, smooth; 12 veins, 7 and 8 
