40 U.S. NATIONAL MUSEUM BULLETIN 24 8 posthumous 



7. Pleurites wide, with prominent spines; distal segment of abdomen wider (0.54); 



occipital nodi small, without lateral wings and with connecting carina 



marginal C. ruficaudatus 



Pleurites narrow, with small spines; distal segment of abdomen narrower (0.456); 

 occipital nodi large, with black center only and short lateral wings; connecting 

 carina submarginal C. microspinum 



8. First pair of coxae not extending beyond posterior margin of pro thorax; frons 



flatly circular; pleurites with short, sharp spines; occipital nodi round, black 

 and strongly submarginal, with narrow connecting carina and long, slender 



lateral wings C. mira 



First pair of coxae extending far back of posterior margi n of prothorax; occipital 

 nodi and connecting carina marginal and without lateral wings . C. garruli 



Males 



1. Total length, 1.50 mm.-l.52; pleurites more or less quadrangular, with short 



spines, and bearing three small, round incrassations in the form of a triangle . 2 



Total length, 1.69-2.00; pleurites quadrangular with either one incrassation, 



or none 3 



2. Head wide at temples, 0.337 X 0.56; frons, 0.39; abdomen wider, 0.86 X 0.67, 



and distal segment wider, 0.29. Genitalia distinctive . . . . C. huilensis 



Head narrow at temples, 0.347 X 0.51; frons, 0.37; distal abdominal segment 



narrower, 0.24. Genitalia distinctive C. caquetae 



3. Pleurites without incrassations or marginal carina; head, 0.42 X 0.67; frons, 



0.42; genitalia large, distinctive C. sixiola 



Pleurites with one faint incrassation in anterior portion, or else in center, 

 touching marginal carina 4 



4. Incrassation in anterior end of pleurite; body, 1.7 X 1.00; head small, 0,337 



X 0.52; frons, 0.37; genitalia very small and distinctive . . . C. wagleri 



Half-moon-shaped incrassation in middle of pleurite, touching marginal carina; 



head large, 0.36 X 0.56; frons, 0.37; genitalia distinctive . . C. spiculum 



Cracimenopon spiculum (Carriker) 



Figures iv:1,4,14 



Amyrsidea spicula spicula Carriker, 1950, Rev. Acad. Colombiana Cienc, vol. 7, 

 p. 506, figs. 54-55a. Host: Ortalis v. vetula (Wagler). 

 Fully described and figured in the original description, but new figures 

 are presented here because of the small circulation of the journal in w^hich 

 the original description was published and the small number of separates 

 allotted to the author for distribution, and also to facilitate comparison 

 with the remaining species of this group. See table of measurements and 

 key to the species for comparative data. 



Cracimenopon garruli (Carriker) 



Figures iv:2,5 



Amyrsidea spicula garruli Carriker, 1950, Rev. Acad. Colombiana Cienc, vol. 7, 

 p. 506, figs. 56-58a. Host: Ortalis g. garrula {Wumholx). 



