288 J. A. G. REHN. 



femora; metatarsi not equalling the terminal tarsal joint in length, tarsal claws 

 strong, arolia absent. Median femora with only an apical spine on each margin, 

 genicular spine robust; tibia? about equal to the femora in length ; metatarsi and 

 the terminal tarsal joint about equal in length, claws robust, arolia absent. Pos- 

 terior femora with an apical spine present on only the. anterior margin, genicular 

 very weak ; tibia? exceeding the femora by one-third the length of the latter; 

 metatarsi slightly exceeding the terminal tarsal joint in length, metatarsal pul- 

 villi extending to the base of the joint as a narrow strip, the major portion being 

 apical, terminal joint without distinct pulvilli, claws very robust, arolia absent. 

 General color ochraceous, blotched and mottled with brownish black and umber. 

 Head with the lower portion of the interspace between the eyes and that between 

 the ocelli brownish black ; eyes and antenna? dull umber. Pronotum of the gen- 

 eral color, the pattern on the disk brownish black, median, not touching the 

 posterior margin, sub-quadrate, the anterior angles acute, the posterior rounded. 

 Tegmina blotched along the distal portion of the discoidal vein with brownish 

 black, the remainder of the tegmina closely mottled with umber. Limbs dull 

 reddish ochraceous, strongest on the tibia? and distal portions of the femora; 

 spines tipped with black ; upper surface of the tarsal joints blackish brown. 



Measurement: 



Length of body, ...... 59.5 mm. 



Length of pronotum, ..... 16. " 



Greatest width of pronotum 25.5 " 



Length of tegmina, 60. " 



Greatest width of tegmina, .... 26. " 



Another male from the type locality was also examined. 



Genus BL.ABERUS Serville. 



1831, Blaberus Serville, Ann. Sci. Nat., xxii, p. 37. Type. — Blatla gigantea 

 Fabricius, the other two originally included species (biguttata and 

 grossa) being removed to Monachoda in 1838. 



Blaberus trapezoi<leus Burmeister. 



1838, Bl[nbera] trapezoidea Burmeister.Handb. d. Entom., ii, p. 516. [Mexico.] 



Four specimens ; two males and two females ; San Carlos, Costa 

 Rica. (Schild and Burgdorf.) [TJ. S. N. M.] 



One female has the tegmen and wing of the left side abnormal. 

 The former is abruptly truncate, and the latter has the posterior 

 field curiously aborted. 



Blaberus atropos (Stoll). 



1813, [Blatta] atropos Stoll, Natuurlijke Afbeeldingen en Beschrijvingen, De 

 Kakkerlakken, pp. 4 and 14, pi. iid, fig. 8. 



One female; Mariel, Pinar del Rio, Cuba. May 11, 1900. 

 (Palmer and Riley.) [U. 8. N. M.] 



