82 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 125 



most of the 4 spines in the transverse row and the spine adjacent to it is 

 greater than the distance between any of the others ; 12 short, stout, simple, 

 spinelike trichomes on thorax carolinae De Leon 



3. Respiratory apparatus of either side with posteromedially directed prolonga- 



tion extending from junction of dorsal and ventrolateral elements 4 



Respiratory apparatus without this prolongation 6 



4. Respiratory apparatus with dorsal element expanding gradually from its base 



to apex, forming a club-shaped structure ; band of spines in comblike groups 



crossing anterior margin of fifth abdominal segment burchi Dalmat 



Distal end of dorsal element of respiratory apparatus tapered, narrower than 

 the more basal section ; fifth abdominal segment devoid of spines S 



5. Dorsal element of respiratory apparatus curved, with concavity on upper 



surface, this element broadening from base to midregion and then taper- 

 ing toward apex; posteromedially directed extension long and somewhat 

 pointed ; cocoon without lateral "wings" ; dorsum of the seventh abdominal 

 segment with four large spines in transverse row, and dorsum of ninth seg- 

 ment devoid of spines delatorrei Dalmat 



Dorsal element of respiratory apparatus curved, with concavity on lower 

 surface, this element tapering gradually from its base to apex ; postero- 

 medially directed extension very short and blunt; cocoon with lateral 

 "wings" ; dorsum of seventh abdominal segment with 10-16 large spines 

 in transverse row, and dorsum of ninth segment with uninterrupted band 

 of spines in comblike groups capricornis De Leon 



6. Dorsal element of respiratory apparatus spatulate and short, its apex very 



broad and darker than remainder of structure; four simple, thin, spinelike 



trichomes on thorax nigricornis Dalmat 



Dorsal element tapering, never spatulate, and of the same color as the remain- 

 der of respiratory apparatus ; usually eight trichomes on thorax 7 



7. Dorsal element of respiratory apparatus very short and straight, only slightly 



more than one-half the length of ventrolateral element; length of base of 

 cocoon 1.8 times its width; dorsum of ninth abdominal segment devoid of 



spines microbranchium Dalmat 



Dorsal element curved with ventral concavity, approximately 1.5 times the 

 length of ventrolateral element; length of base of cocoon less than 1.2 times 

 its width ; dorsum of ninth abdominal segment with band of small spines in 

 comblike groups along anterior margin ethelae Dalmat 



SPECIES OF THE SUBGENUS LANEA, BASED ON PUPAL CHARACTERS 



1. Filaments of respiratory apparatus very short, measuring approximately 60 



percent of length of cocoon; trichomes usually absent from dorsum of 

 thorax; a single short, heavy spine on either side of midline on dorsal sur- 

 face of segment 9, posterior to transverse row. 



dtigesi Vargas, Martinez, and Diaz 



Filaments longer, measuring more than three-fourths the length of cocoon; 



trichomes present ; the short, heavy, single spine posterior to transverse row 



never present on dorsum of segment 9 2 



2. Spines or teeth present on dorsum of ninth segment 3 



Spines or teeth absent on dorsum of ninth segment 7 



3. Spines present on dorsum of sixth segment 4 



Spines absent on dorsum of sixth segment 6 



