NO. 1434. VENEZUELAN SYNTOMID MOTHS— KLAGEK 535 



with inetiillic blue patches; fore coxa? whitish; tibiii? with basal black 

 .stripes usuall}" streaked with metallic blue, the stripes on fore and 

 middle tibiae short; abdomen with ventral valve; the front of first four 

 dorsal segments narrowly whitish; the hind part of dor.sal segments 

 with subdorsal black patches (small or absent )>eyond sixth segment) 

 usually (in types the tirst six pairs) enclosing metallic blue spots; 

 usually the first five or six (in types live) pairs of patches connected 

 dorsally, and the first three to live pairs rather extended laterally; 

 underneath with silvery band (often hidden by ventral valve) on front 

 of fourth segment, and the medial segments with or without lateral 

 black spots, often enclosing metallic blue patches; w^ngs yellow 

 hyaline, the veins, and margins narrowl}' brown-black. Fore wing 

 with metallic blue points at base, the terminal band wnde on apical 

 area, the inner fascia black. Hind wing with the terminal band wide 

 at vein 1, the inner fascia orange. 



Female. — The whitish fascia on fore coxa? and the silvery ])and on 

 underside of fourth segment are absent; fore wing with basal orange 

 streak on inner fascia. The ventral valve is of course absent. 



Expanse. — Males 3-1-4:2 mm.; females 34—48 nun. 



Ilahltat. — Suapure, Venezuela. 



7)//>t«.— Cat. No. 8408, U.S.N.M., and in collection of the author. 



Remarkable for the great variation in size. In rare instances the 

 metallic markings are blue-green. 



Allied to C. nlgricornts Fabricius. 



Named after Sir George F. Hampson in recognition of his lepidop- 

 terological writings, which, although of wonderful magnitude, are 

 unexcelled in system and accuracy. 



COSMOSOMA GEMMATUM Butler. 



The form taken has the legs l)rown-black, and the abdomon with 

 sublateral series of metallic blue spots (as in C. xanthocera Hampson). 

 The male has the fore coxte and streaks on legs brownish 3"ellow, and 

 the abdomen beneath without yellow spots on third segment. This 

 form is evidently due to the locality. 



Ilah'tiat. — Suapure, Venezuela. 



COSMOSOMA GEMMATUM Butler var. XANTHOCERA Hampson. 



In the form taken the antenna? are l)lack, with the branches orange, 

 and the shaft very rarel}" streaked. The abdomen frequentlv with 

 orange spot or band on front of sixth segment, and the l)and on fifth 

 segment not reduced in the male. 



While the ground color of the head and body in this form is orange 

 and in gemmatum, black, the two forms are identical in habits, were 

 observed to commingle sexually, and are undoubtedly varieties of 



