PAPEE III CARRIKER ON ]VIALLOPHAGA 35 



Desumenopon hyperythrus ricaurtei, new subspecies 

 Figures hi: 15, 18,21 



Holotype male from Odontophorus erythrurus parambae Rothschild collected 

 by the author at Ricaurte, Dept. of Narino, Colombia, June 27, 1957 

 (type in USNM). 



Diagnosis: One of the smaller species (length 1.66 mm.), practically the 

 same length as complicatus but differs as follows: Head longer (0.314 against 

 0.303, at temples), frons wider (0.326 against 0.303), and pterothorax 

 slightly longer and narrower. 



Genitalia differ from two previously mentioned species by thicker para- 

 meres and in the different shape of the supporting struts of endomeral sac. 

 This male is in perfect condition, with chaetotaxy complete. 



Desumenopon hyperythrus complicatus, new subspecies 



Figures ni: 14, 17,20 



Holotype male, allotype female, and one paratype from Odontophorus 

 melanonotus Gould collected in Ecuador (type in USNM). 



Diagnosis: Closely allied to hyperythrus, both in shape of head and mov- 

 able sclerite of genitalia. Differs from the nominate race in much shorter 

 body, shape of genitalia, especially of parameres, and in the occipital 

 margin of head. The male is the smallest of the genus now known (length 

 1.58), the width of frons also the narrowest (0.30), and length of head at 

 occiput is shortest (0.25). This brief diagnosis, together with the figures 

 and data in the key are sufficient for its recognition. 



Desumenopon spectosa, new species 

 Figures ni: 13, 1 6, 1 9 



Holotype male from Odontophorus speciosa speciosa Tschudi collected in 

 East Peru (type in USNM). 



Diagnosis: A rather large species (length 1.70), with uniformly circular 

 frons and very short prothorax (0.174X0.347); the frons unusually wide 

 in proportion to width of temples (frons 0.31, temples 0.40). 



The basal portion of the basal plate is long and slender, parameres are 

 comparatively short, slender, and recurved, and with the movable sclerite 

 quite unique. The key and table of measurements give additional infor- 

 mation for its identification. 



