60 PROCEEDINGS OF THE ACADEMY OF [Jan., 



section involving the pleura as well as the dorsal portion, but not the 

 metasternum, which is, however, strongly rugose; anterior portion 

 of the nietathorax not inflated. Median segment half again as long as 

 broad, about equal to half the length of the metanotum itself. Ante- 

 rior and median limbs without prominent spines, except the genicular 

 lobes of the median femora which are spiniform, and two median 

 apical spines on the inferior surface of the same limbs. Posterior 

 femora inflated, armed along the median inferior carina with seven or 

 eight distinct spines, the apical ones of large size, genicular lobes spini- 

 form; tibise with the carinse serrulate, the inferior pair also provided 

 with dentiform spines. 



This genus is near Bostra, but can be separated by the swollen 

 metathorax and enlarged and strongly armed posterior femora. It 

 will include Bostra podagrica Stal,^^ which has all the characters of 

 Oncotophasma except the swollen metathorax, the character of which 

 Stal does not mention. The two genera may be separated as follows: 



Males. 



A. — Posterior femora unarmed ; intermediate femora not spined 



apically, Bostra Stal. 



AA. — Posterior femora strongly spinose ; intermediate femora apically 

 bispinose, Oncotophasma Rehn. 



Oncotophasma martini (GrifEni). 



1896. B[ostra]]Mar(ini Griffini, Bollettino del Musei di Zoologia ed Anatomia 

 comparata, XI, No. 236, p. 10, fig. [Forests by the lagoon of Pita, 

 Darien, Colombia.] 



One male; San Carlos, Costa Rica. (Schild and Burgdorf.) [U. S. 



N. M.] 



Genus CLONISTSIA Stil. 



1875. Clonistria Stal, Bihang till K. Svenska Vet. Akad. Handlingar, 

 Band 2, No. 17, p. 6. 



Type.^ — Clonistria hartholomaa Stal. 



Clonistria linearis (Drury)? 



1770. [Mantis] linearis Drury, III. Nat. Hist. Exot. Ins., I, p. 130, and 

 Append., PI. L, fig. 3. [Antigua.] 



One male; Jamaica. [U. S. N. M.] 



As considerable uncertainty has prevailed regarding the identity 

 of Drury's linearis, a question which cannot satisfactorily be settled 

 without a study of Antiguan material, I have queried the determi- 

 nation. 



The specimen in hand has the under surface of the head marked with 



^^ Recensio Orthopterorum, III, p. 79 



