N0 - 3 608 CADDIS FLIES, IV — FLINT 5 



Paratypes: Same data, 4 cf; same data except June 26, 1965, Flint, 

 2 cf; same data except Palitla, June 5, 1966, Flint, 2d". 



Protoptila spangleri, new species 



Figure 9 



This species is a relative of P. liqua Mosely, from which it differs 

 in possessing very long processes from the tenth tergites and a shorter 

 midventral process from the eighth sternum. 



Adult. Length of forewing 3 mm. Color in alcohol uniformly 

 brown. Antennae of male with a series of segments at midlength 

 much broadened. Male genitalia: Sixth sternum with a short apico- 

 mesal point. Eighth sternum produced in a short mesal process 

 that has a broad mesal division. Ninth segment with lateral margins 

 developed into long slender processes. Tenth tergite very narrow, 

 produced into a ventral point and dorsally into a long, ventrally 

 directed, whiplike process. Aedeagus with a ventral scooplike 

 process; at midlength a long pointed process that bears paired teeth 

 laterally; apical membrane with central and lateral hooks. 



Holotype, male: Mexico (Vera Cruz), Cuitlahuac, Aug. 10-12, 

 1964, Sp angler. 



Paratypes: Same data, 6 cf. 



Philopotamidae 



Chimarra duckworthi, new species 



Figures 10-12 



This species is very different from all other described New World 

 species. The structure of the lateral and median lobes of the tenth 

 tergum is unique, as is the elongate, almost semicircular shape of the 

 clasper. 



Adult. Length of forewing 4.5 mm. Wings, body, and most of 

 appendages fuscous, femora paler. Male genitalia: Ninth segment with 

 anterior margin rounded, postero ventral projection short, terete. 

 Tenth tergum with an elongate, semimembranous mesal lobe shaped 

 somewhat like a duck's head in profile; lateral lobe bearing a heavily 

 chitinized angled support, sensillae on a slightly enlarged area at the 

 angle of the support, a lightly sclerotized plate with a darker central 

 line beyond the support. Clasper narrow, elongate, tip decurved, 

 pointed; in postero ventral aspect almost semicircular. Aedeagus pro- 

 longed into a pointed process ventroapically, internally with two long 

 spines, a ring and rod, and a scabrous pouch attached to a darkened 

 spherical base. 



Holotype, male: Costa Rica, Turrialba, Mar. 1-6, 1965, Duckworth. 



