i7« 
The Ohio Naturalist. 
[Vol. II, No. 3, 
II. THICHODECTES OF THE CENTRAL AMERICAN COATI AND 
THE RING-TAIL FOX. 
Trichodedes nasuatis n. sp. (Plate n, Fig. 3.) 
Broad, light yellowish, abdomen ovate. Length, female, 1.60 mm. 
Head slightly wider than long, semi-circular in front with shallow emarg- 
ination at apex and a shallow furrow running from apex to mandibles. 
Antennal pits rather deep, antennal lobes extending back in obtuse rounded 
angle, and behind the antennal pit is a rather prominent lobe, behind which 
the border curves toward the occiput, the postero-lateral angle being very 
obtuse. Antennae rather slender, joints of about equal length, second 
shorter than first and third. Thorax short ; legs nearly uniform in size ; 
anterior tarsal claws short, middle and posterior longer and more slender. 
Abdomen ovate, broadest about second segment, tapering uniformly to sixth 
segment. Scattering bristles on posterior border of each segment incon- 
spicuous, longer on ventral side than dorsal ; lateral appendages of seventh 
segment not conspicuously separate from the border. 
This species differs from crassus in having the postero-lateral 
lobes rounded and head narrower. As compared with T. pallidus 
desribed from Nastta rufa of South America the head is less 
emarginate in front, not so wide as compared with length, and 
not near so broad or angular for posterior angle, and also varies 
in size. 
Described from three mature females and one immature indi- 
vidual sent me by Mr. George K. Cherrie from Costa Rica, taken 
from the coati, Nasua uarica. 
Trichodedes thoracicus n. sp. (Plate n, Fig. 4.) 
Short and broad. Head rounded in front, with deep semi-circular emarg- 
ination and with very strong chitinous borders to the mandibular furrow. A 
strong projection on anterior border of antennal pit extending over base of 
antenna. Thorax short, prothorax narrow, short, metathorax with a strong 
process or inflation on antero-lateral border, the posterior margin of which 
bears a row of spines, which is continued across hinder border of the 
segment. The abdomen is ovate, widest at the second and third segments ; 
strong bristles on one to six ; no transverse dusky bands ; lateral appendages 
on seventh segment, conspicuous and strongly curved. 
Male, antenna with large swollen basal joint and the head is somewhat 
more pointed in outline. The genitalia are strongly developed, the lateral 
pieces wide apart, connected by median bow with a sharp process at tip, 
and the posterior end of penis with strong bidentate process. 
This species resembles retusus in size and shape and depth of 
the froutal emargination, but has no transverse bands, and differs 
particularly in the large lateral processes of the thorax and in 
details of genitalia. On Bassaris astuta, Lake county, Cal., 
from Prof. W. G. Johnson. 
