54 U.S. NATIONAL MUSEUM BULLETIN 248 posthumous 



Diagnosis: One of the smaller species, it is slightly larger than costari- 

 censis and vetulae (2.06 against 2.01 and 2.03). Shape of head is similar to 

 that oi ruficaudatus but smaller in all measurements; the preantennary and 

 postocular carinae are wider and strongly corrugated along inner margin 

 and much more strongly pigmented; attachment of prothorax with head 

 is quite distinct; claspers and segment VIII differ in shape; and only 3 very 

 short spinelike setae are at anterior end of clasper. 



Measurements are given in the tabulation above. 



Oxylipeurus huilensis, new species 



Figures v:6,7,14 



Holotype female, allotype male, and 6 paratypes from Ortalis guttata 

 Columbiana Hellmayr collected by the author at Belen, Dept. of Huila, 

 Colombia, March 19, 1952 (type in USNM). 



Diagnosis: Differs from chiniri in possessing short setae on posterior mar- 

 gin of pterothorax to end of abdominal segment II, but in chiniri they 

 extend to the middle of V in the female and to middle of VI in the male, 

 same as variegatus in this character. 



There are 8 setae on claspers instead of 6, ranging from long to medium. 

 This species more closely resembles variegatus than chiniri, and differs from 

 variegatus as follows: Male smaller (1.71 against 1.78); female equal to 

 shortest length for variegatus (2.17 against 2.17 to 2.26); head narrower at 

 both frons and temples; prothorax much shorter and slightly narrower 

 (male .12X.24 against .19X.26; female .14X.29 against .20X.30); ptero- 

 thorax (male .24X.30 against .13X.33; female .29X.38 against .30X.40). 



Postocular carinae are narrower, with inner margin less corrugated. 

 Shape of female claspers is entirely different, the inner margin in variegatus 

 forms a perfect rectangle, with the patches of setae on each side of VIII 

 much shorter and the setae on claspers distinct. In variegatus there are 7 

 rather short setae, thickened basally, and 2 extremely short ones distally, 

 instead of 8 rather long setae decreasing in length distally. 



Male genitalia are very different, with parameres shorter and more 

 curving and endomera of distinct shape in huilensis, and with the elongated 

 distal process longer and more slender in variegatus. 



Measurements follow the next species. 



Oxylipeurus caquetae, new species 

 Figure v:8 



Holotype female from Ortalis guttata caquetae Chapman collected by the 

 author at Puerto Venecia, Dept. of Caqueta, Colombia, June 16, 1952 

 (type in USNM). 



Diagnosis: Shape of head is very different from the chiniri complex, re- 

 sembling that of tenuicapitisy widest at middle of temples, then tapering 



