A. C. OUDEMANS, NOTES ON ACARI. 249 
men in my observation was bad. Hairs like in the male. 
Copulation tube (Fig. 28) dorsal, conspieuous, scar- 
cely wider distally, longitudinally striated. 
Ventral side (Fig. 27). Like in the d, except 1% the 
epimera II and IV are far forward, and both placed 
between the edge of the body and the median line, so that 
they are nor submarginal neither submedial ; 2" the hair out- 
side of epimera III is more inward, not marginal; 3° a pair 
of short hairs flank the anterior end of the genital aperture, 
and a pair of longer ones stand behind the aperture. G en i- 
tal aperture between legs III and IV, extending from 
the proximal ends of epimera III backward even beyond the 
distal ends of trochanteres IV, more or less L-shaped, but in 
reality triangular and shut by two long-triangular valves. 
No epigynium. Genital suckers distinct. Anus 
longer than in the male, touching the posterior edge of the body. 
Mandibles like in the male. 
Maxillae like in the male. 
Pseudostigmatic organ (hair) like in the male. 
Legs like in the male. In fig. 29 I have delineated tar- 
sus I viewed aside, to show the claw-like process, the minute 
‚caruncle and the claw. 
Habitat. In the great quills of the courliri, Aramus scolopaceus. 
Patria; probably the same as that of the bird: tropical 
America. 
Found by Dr. E. L. Trouessart. 
Types in collection Oudemans. 
Remark. Tyroglyphidae generally feed on dried or half- 
dried animal and vegetabel products. So it is most probable 
that Suidasia pontifica feeds on the dried pith of the quills or 
on dead syringobial Acari (Syringobia, Pterolichus, Dermogly- 
phus, Syringophilus, Cheletoides, Cheletopsis, Cheletosoma). I do 
not believe that it is a real parasite; it most probably does 
not pray on blood or living skin of the bird. 
Iie 
