1913.] NATURAL SCIENCES OF PHILADELPHIA. 685 



Ehyncholophus stolli n. sp. PI. XXX, fig. 22. 



Red. Body about one and two-thirds as long as broad, broadest 

 at humeri, slightly narrowed at insertion of third legs, broadly 

 rounded behind, clothed with very short dense simple hairs, dorsal 

 groove long, reaching much behind eyes, and with a papilla at about 

 one-third way from end; one eye each side. Legs slender, first 

 pair about as long as body, second pair very short, last joint of leg I 

 about one-half the length of the preceding, last joint of leg IV about 

 one-third of preceding joint; palpi with large clavate thumb; genital 

 aperture about one-half its length in front of the small anal aperture, 

 the latter with a dark strip reaching out each side. 



Length 3.5 mm. 



From San Jose, Costa Rica (Tristan). 

 TJropoda olavisetosa n. sp. PI. XXIX, fig. 19. 



Yellowish. Body about one and a half times as long as broad, 

 broadest behind middle, but not narrowed much in front; dorsum 

 with many long, stout bristles, those around the margin (about 

 15 each side) are simple, some toward tip are very long, four in front 

 are close together in pairs, on middle of dorsum the bristles are 

 plainly clavate, especially in front, those behind hardly so; legs 

 rather stout, all with few simple bristles, hind coxte more approximate 

 than others, hardly more than diameter apart; venter with an 

 oblique ridge behind hind femur; anus about its length in front of 

 margin, a pair of bristles behind it. 



Length .65 mm. 



From Juan Vinas, Costa Rica (Calvert), on the Harlequin beetle, 

 Acrocinus longimanus. 

 Uropoda bisetosa n. sp. PI. XXIX fig. 15. 



Brownish-yellow. Body about once and two-thirds as long as 

 broad, broadest rather behind the middle, broadly rounded behind, 

 in front tapering, and near tip with concave margins so that there 

 is a prominent process in front which bears two small bristles; dor- 

 sum smooth, without hairs; coxae I rather longer than usual, all 

 legs very short, and all but leg I stout, with few hairs, a few spine- 

 like bristles on tarsi; epigynum of female more than twice as long as 

 broad, narrowed behind; anus hardly its length in front of hind 

 .margin; behind leg II the peritreme bends suddenly outward and 

 then at once back and bends to leg III. 



Length .5 mm. 



From Juan Vinas, Costa Rica (Calvert), on the Harlequin beetle, 

 Acrocimis longimanus. 



