20 • ACADEMY OP NATURAL SCIENCES 



ance, much shorter than the haustellum, rounded at tip ; haustel- 

 lum, the two superior organs emarginate at tip, exterior division 

 dentate beneath, inferior organ with numerous resupinate teeth 

 resembling fenestrate punctures ; posterior to the origin of the 

 palpi above is an orbicular, obscure assemblage of punctures re- 

 sembling eyes ; black dorsal lines of the male somewhat regular, 

 consisting usually of a dorsal line divaricating before, and behind, 

 the middle, furnishing a branch each side, which at the tip of 

 the abdomen [76] is confluent with a lateral line, which also 

 branches oif in two or three short lines towards the feet ; feet 

 with a short robust nail, and a reclivate pedunculated pulvillus 

 and nails. 



Found in considerable numbers on a Cervus virginianus, in 

 East Florida. 



2. I. ORBICULATUS. — Body nearly orbicular, slightly narrower 

 before, punctured, ten or twelve longitudinal, abbreviated im- 

 pressed line on the posterior margin, marginal impressed line 

 none, two longitudinal indented lines before the middle ; head 

 transverse subquadrate, posterior edge very obtusely rounded, the 

 posterior angles complying with the general curve ; palpi oblong, 

 sublinear. 



Cabinet of the Academy. 



Found inhabiting Sciurus capistratus of the Southern States. 



3. I. CRENATUS. — -Body ovate, with distant deeply impressed 

 punctures, posterior margin lobated by ten or twelve profoundly 

 indented lines, which are abbreviated by an impressed submar- 

 ginal line, which becomes gradually obsolete before the lateral 

 middle ; posterior edge crenulated ; thorax none, distinct ; head, 

 posterior edge transversely rectilinear, angles slightly arquated 

 backward and rounded at tip ; palpi oblong, sublinear and regu- 

 larly rounded at tip. 



Cabinet of the Academy. 



Found in the Southern States, the color is reddish, [77] some- 

 times slightly varied with whitish, particularly behind, and the 

 lobate divisions of the posterior margin are sometimes whitish 

 above, and the disk is obsoletely lineated with black. 



4. I. ERRATicus. — Body oblong-ovate, gradually narrowed 

 before, sides hardly arquated, with distant punctures, those be- 

 hind more deeply impressed, posterior margin with ten or twelve 



[Vol. II. 



