686 PROCEEDINGS OF THE ACADEMY OF [DeC, 



Celaenopsis angustus n. sp. PI. XXX, fig. 20. 



Reddish-brown. Body fully twice as long as broad, middle sides 

 nearly parallel, tapering and almost pointed behind, in front rather 

 concavely narrowed to the rounded front; dorsum smooth, with a 

 few short scattered bristles, these bristles not one-half as long as 

 distance between them, a row of curved bristles over front margin; 

 sternum about as long as broad behind, a bristle in each anterior 

 corner, one each side, and a submedian pair behind; vulva as figured; 

 hind coxae not their diameter apart; anus nearly three times its 

 length in front of hind margin, a pair of bristles behind it toward 

 tip; first legs slender, with many fine hairs especially at tip, other 

 legs thicker, and with few bristles, hind legs reaching barely beyond 

 abdomen. 



Length .6 mm. 



On the Scarabseid, Dynastes hercules, from Costa Rica (Calvert). 



Hypoaspis distans n. sp. PI. XIX, fig. 17. 



Yellowish. Body about twice as long as broad, broadest at middle, 

 tapering each way, but most behind; dorsum with a number of short 

 hairs set in hyaline dots, and on margin longer hairs, some of them 

 very long, one each side behind is fully one-half the width of the 

 body; sternal shield rather longer than broad; epistome very long 

 and slender; legs rather long, second pair of male stoutest, all with 

 bristles, some under leg II spine-like, a very long bristle on femur IV, 

 much shorter one on femur III, in female there is also a very long 

 one on femur II. 



Length 1 mm. 



On the Scarabseid, Dynastes hercules, from Costa Rica (Calvert). 



Explanation of Plates XXVIII-XXX. 



Plate XXVIII. — Fig. 1. — Singa dotana. 

 Fig. 2. — Teminius conjunda, vulva. 

 Fig. 3. — Zimiromus fragilis, spinnerets. 

 Fig. 4. — Anyphcena pretiosa, vulva. 

 Fig. 5. — Anyphaena furcalella, palpus. 

 Fig. 6. — Stygnoleptes analis, leg IV. 

 Fig. 7. — Theridion biolleyi, palpus. 

 Fig. 8. — Chetnmis punctigera, vulva. 

 Fig. 9. — Zimiromus fragilis, eyes. 

 Fig. 10. — Anyphcena fiMTcaiella, vulva. 

 Fig. 11. — Singa dotana, vulva. 

 Fig. 12. — Zimiromus fragilis, vulva. 

 Fig. 13. — Stygnoleptes analis, palpus. 

 Fig. 14. — Pelayo insignis, vulva. 



Plate XXIX. — Fig. 15. — Uropoda bisetosa. 

 Fig. 16. — Chelanops uniformis. 

 Fig. 17. — Hypoaspis distaiis, and epistome. 



