198 BULLETIN 46, UNITED STATES NATIONAL MUSEUM. 



16. Scolopendra heros Grirard. 



I860.— Scolopendra asteca Saussure. Myr. Mex., 124. 

 ISQO. — Scolopefdra otornita Saussure. Myr. Mex., 125. 

 I860. — Scolopendra may a Saussure. Myr. Mex., 126. 

 Ace. 18478. Guanajuato, Mex.; Duges. 



A comparison of this specimen with Saussure's Mexican species has 

 led me to regard the above as synonyms of heros. 



17. Scolopendra pachypus Kolilrausch. 

 Ace. 19811, Truxillo, Honduras; C. H. Townsend. 



Oae specimen. It only differs from pachypus in size; length, 85 mm . 

 Arl the known pachypus are not more than 65 ,lim long. 



18. Scolopendra nicaraguensis, sp. nov. 



Diagnosis. — Eelated to Scolopendra heros Girard but the anal pair of 

 legs thicker and shorter; first 15 dorsal plates immarginate; last anal 

 plate shorter and wider. 



Type.— Ace. 19099, U. S. Nat. Museum. 



Habitat. — Nicaragua; Dr. Bransford. 



.Description. — Dorsal plates dirty yellowish green; legs and under 

 parts yellow; antenna? pale; prehensorial pair of legs dark orange. 

 Moderately robust, smooth, not punctate. Head suboval, punctate; 

 a longitudinal median depression; no sulci. Antenna? rather short, 

 articles 21-24, the first four not hirsute. Prosternal teeth 4+4, rather 

 large, inner coalesced; coxal tooth large, unarmed. The first 15 dorsal 

 plates immarginate; sulci deep ; posterior borders not wrinkled. Sulci 

 of ventral plates well marked; last ventral plate short and wide, sides 

 converging, posterior margin truncate. Second tarsal joints of all the 

 legs except anal armed. Anal pair of legs short and thick ; spines large, 

 5-C in two rows on the superior interior surface, 2 or 3 each on the inner 

 and inferior interior surfaces, beneath 6-10 in two rows; apical process 

 slender, bifid. Posterior margin of anal pleura? slightly convex, apex 

 with 3 or 4 spines, also 1 marginal. Length, 90 mm . 



The collection contains three specimens of this species, of which one 

 is in a good condition. It is distinguished from pachypus by having the 

 anal legs less crassate; from pernix by having the spines of anal legs 

 less numerous. 



19. Scolopendra hirsutipes, sp. nov. 



Diagnosis.— Belated to Scolopendra heros, but the tarsi of anal and 

 penultimate pairs densely and shortly hirsute; spines on the upper in- 

 terior surface of femora 3 or 4 in two series. 



Type,— JJ. S. Nat. Museum. 



Habitat, — West Indian fauna. 



Description. — Yellowish brown, posterior margin of dorsal plates 



