382 PROCEEDINGS OF THE ACADEMY OF [1893. 



4; a small lateral spot on 8, apical dorsal half of 9 and the lateral 

 stripe on 2-3, yellow; yellow spots on dorsum of 10 extremely 

 small or absent. Appendages dark brown, longer than 10, not 

 denticulated. Genital valves brown, margins not denticulated. 

 Pterostigma luteous (teneral), light brown (adult). 18-23 post- 

 cubitals on front wings, 17-20 on hind wings. 



Measurements. Total length $ 4P5-47 mm., 9 37-40. Abdo- 

 men (including appendages) $ 34-38, 9 29-3T5. Front wing 6 

 25-5-30, 9 26-29. Hind wing $ 24-5-29, 9 25-28. Ptero- 

 stigma 2-2-25- Superior appendages $ 1-1.33. Appendages 9 -8- 



Described from the original four types, viz., one male, one female, 

 Kingston, Jamaica, May, 1890, by E. M. Aaron (Collection of P. 

 P. Calvert) ; one male, Kingston, by W. J. Fox (Coll. American 

 Entomological Society) ; one female, Jamaica, by C. W. Johnson 

 (Coll. Wagner Institute of Science) ; and from two addi- 

 tional males, both from the Bath district of Jamaica by Mrs. Swain- 

 son (one in Coll. Institute of Jamaica at Kingston, the other in 

 Coll. P. P. C). 



Ortholestes abbotti n. sp. 



$ closely resembling O. clara. Differs by the shape of the supe- 

 rior appendages in that the more basal of the two inferior teeth is 

 not so clearly distinct from the dilatation of the lower margin, 



Fig. 3. Profile view, appendages of O. abbotti $ 



while the more apical tooth is transformed into a slender, acute, 

 somewhat curved spine, situated on the apical side of the basal 

 tooth, and directed backward; the cylindrical terminal portion of 

 the appendage forms about one-fourth the entire length. 



Measurements. Total length 39 mm. Abdomen (inch app.) 

 3P5. Front wing 24. Hind wing 23. Pterostigma nearly 2. 

 Superior appendages 1*3. Female unknown. 



Described from one male from Hayti, by Dr. W. L. Abbott (Col- 

 lection of the American Entomological Society). 



