214 
Psyche 
[December 
32a. Epigynum with a light swelling bordered anterior and sides 
(Fig. 50) ; Venezuela C. barromachadoi Caporiacco 
32b. Epigynum otherwise 33 
33a. Epigynum with openings near posterior margin in a depression, 
ducts loop anterior (Fig. 54) ; southern Brazil 
C. ribeirao sp. n. 
33b. Epigynum otherwise 34 
34a. Epigynum with a central fossa 35 
34b. Epigynum without fossa 41 
35a. Two openings in center of fossa (Fig. 93) ; Costa Rica, Panama 
G.volcanensis sp. n. 
35b. Epigynum otherwise 36 
36a. A black circular mark on each lateral end of fossa (Fig. 73) ; 
cosmopolitan C. clementinae (Petrunkevitch) 
36b. Epigynum otherwise 37 
37a. Fossa far anterior, usually bordered on sides only (Fig. 27) ; 
Venezuela C. simoni sp. n. 
37b. Fossa in center or posterior, bordered anterior or posterior as 
well as sides 38 
38a. Fossa in a dark spot; ducts visible posterior to fossa (Figs. 16, 
17) ; Brazil, Argentina C. rubrovittata (Keyserling) 
38b. Epigynum otherwise 39 
39a. Narrow ducts leading from sides into fossa (Figs. 57, 62) .... 40 
39b. Ducts wider and leading from anterior into fossa (Figs. 64, 66, 
67), Peru to Brazil C. cornpressa (Keyserling) 
40a. Fossa bordered on sides and posterior (Fig. 57) ; southern 
Brazil C. pulchra (Keyserling) 
40b. Fossa bordered on sides and anterior (Fig. 62) ; Minas Gerais .. 
C. caraca sp. n. 
41a. Epigynal openings in a slit anterior to a dark area (Fig. 60) ; 
ducts simple (Fig. 59) ; San Fernandez Isl. 
C. backstromi (Berland) 
41b. Epigynal openings otherwise; usually with internal sacs 42 
42a. Epigynum a central transverse connected dark mark as in Fig- 
ure 21 ; Brazil C. ant 0 mo sp. n. 
42b. Epigynum otherwise 43 
43a. Epigynum with two central dark curved marks (Figs. 10, 12); 
southern Brazil C. nigrosternum (Keyserling) 
43b. Epigynum otherwise 44 
44a. Epigynum with an anterior dark mark and light posterior as in 
1 95 5 > hg- 33i head region blackened; Colombia, Ecuador 
C. nigriceps Keyserling 
44b. Epigynum otherwise, coloration usually otherwise 45 
