500 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 105 



two series of gradates, three inner and five outer, in irregular series, 

 1st r-m slightly basal to 2d m in inner series, 3d m between MA and 

 MP14-2 basal to 2d r-m, closest to 2d m, 3d m basal to first branch of 

 MPl+2, and 2d r-m almost directly below 3d r and directed distally 

 in outer series, no sectoral cross-vein. 



Hind WING (pi. 2, fig. 5): Length 3.4 mm., width 1.3 mm.; mem- 

 brane hyaline to yellowish or faintly tinted with light brownish, with 

 three dark brown spots, the first spot over first five (approximately) 

 costal cross-veins down to Rs near separation from R, the second and 

 third brownish spots are the antepterostigmal and postpterostigmal 

 spots; hyaline areas small, pattern in general corresponding with 

 forewing; pterostigma with narrow yellowish center; most longitudinal 

 veins and costal cross-vein brown in areas tinted with light brown, 

 pale in hyaline areas; radial cross-veins and outer gradates and anal 

 cross-vein brown; 1st m between MA and MPl+2 pale; Rs forked 

 slightly basad of point of coalescence of Sc and Rl ; Cul with two 

 branches to margin; six outer gradates, including a sectoral cross-vein. 



Male genitalia (fig. 19); Eighth tergite small, longer medio- 

 dorsally, tapering almost to point lateroventrally, not as broad as i 

 ninth tergite; ninth tergite very short dorsally, becoming as long as 

 tenth tergite ventrally, anterior margin convexly curved, with small 

 anterior process before ventral margin; tenth tergite with each half I 

 of approximately same length from dorsal border to two-thirds of I 

 width, with anteroventral border tapering slightly; ninth sternite; 

 with a pair of median rounded dark processes extending distally from i 

 inner surface; two halves of tenth sternite almost striplike for over( 

 one-half of width, then turning inwardly and broadening ventrally, j 

 armed with coarse toothlike papillae, bearing long setae; parameresj 

 with flap projecting anterodorsally from median plate more or lessi 

 blunt at apex, anterior margin concave in center, posterior hooks 

 tripartite, largest process toward exterior, inner arms slender and; 

 curved anteriorly, directed anteromedially. 



Holotype: a male (pinned) from La Chorrera, Panamd, May 19161 

 (August Busck) ; USNM 62260. 



The holotype has the left antenna beyond the basal segment broken 

 off and mounted below the specimen (of 63 segments) , the right antenna 

 is also broken (18 segments remaining), and the thkd pair of legs is 

 missing. The right pair of wings is mounted on a balsam slide. 



The female is unknown. 



This is one of two species of Climacia from Central America, thei 

 other being tenebra. Although the wings of both species are very] 

 similar, they have been separated on the basis of the location of 3d r 

 under the pterostigma, the clear spot basally with the raylike streak- 

 ing around it, the broader pale area in the pterostigma, and the color 



