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The male genitalia are also unique, being highly complicated, and 

 it is difhcult to interpret just what function the different parts per- 

 form (fig. 1,^). 



The species is represented only by the male holotype. 



Formicaricola cohnae, new species 



Figure 8,c,e 



Type: Female adult from Formicarim colma amazonicMs Hellmayr, 

 collected by the author at La Lajita, Rio Caura, Venezuela, Nov. 3, 

 1909 (author's collection). 



Diagnosis: This species does not closely resemble an}^ of the 

 other known forms. The head is broad at the temples, with lateral 

 margins convex between temples and preantennal suture; frons 

 wide and transverse, as in sanctae-martae; anterior plate large, 

 quadrilateral, with anterior and lateral margins slightly concave 



Table 2. — Measurements {in millimeters) of the species of Formicaricola 



and entirely without the darker shield covering anterior portion, being 

 uniformh'- colored and without markings. Premarginal carinac 

 narrow, with inner margins black; the inner carinae, supporting the 

 anterior plate, are narrow at suture, then expand and cover about 

 half of each side of plate, with their pointed tips reaching almost to 

 edge of frons. 



Prothorax and pterothorax with convex sides and both rather wide, 

 the latter with posterior margins concave and median point acute. 

 All tergites except I and II wider than long, with inner margins 

 convex and touching in median portion; pleurites and their "heads" 

 slender, the "heads" not extremely long. Segments VIII and IX 

 are shown in figure 8,e. 



The male is unknown, the species being represented by the female 

 holotype and three female paratypes. 



