236 STUDIES IN AMERICAN TETTIGONIIDAE (oRTHOPTERA) 



resinum 



1898. Xiphidium resinum Saussure and Pictet, Biol. Cent.-Amer., Orth., ir 

 p. 398, pi. xi.v, fig.s. 26, 27. [1 c? : Orizaba, Mexico.] 



The brief and very unsatisfactory description, accompanied 

 by good figures of the vertex, affords insufficient evidence for the 

 proper placing of the species. It ma}' be very near C. angusti- 

 frons, or instead aUied to C. gracillimus. The characters given 

 agree with avgustifrons excepting that the vertex is more pro- 

 duced, the specimen is strongly macropterous and the caudal 

 femora have, we are led to suppose, the ventral margins unarmed. 

 The vertex is decidedly too narrow for graciUimus. The species 

 with which it is compared, unispina, is a member of the genus 

 Orchelimum. 



doryphorum 



1907. Xiphidion doryphorum Karny, Abh. k.-k. zool.-bot. Gesell. Wien, iv, 

 p. 96. [1 9 : Uruguay.] 



This diminutive species may be very closely allied to C. stric- 

 toides. The strongly oblique caudal margin of the lateral lobes 

 of the pronotum and different measurements indicate that it is 

 distinct. Length: body 9, pronotum 3.3, tegmen 0.3, caudal 

 femur 9.7, ovipositor 11 mm. 



aberrans 



1901. Xiphidium aberrans Redtenbacher, Verh. k.-k. zool.-bot. Gesell. Wien, 

 xli, p. 516. [More than one 9 : Rio Grande do Sul, Brazil.] 



The nine to ten spines of the ventral margins of the cephalic 

 tibiae would apparently place this species in a different subgenus 

 from any of those known from America. The fastigium of the 

 vertex is narrow; the caudal margin of the lateral lobes is dis- 

 tinctly sinuate, the convex callosity oval and distinct. 



Of the species previously referred to this genus or its synonyms 

 from North America, Xiphidium imispina is known to be a 

 member of the genus Orchelimum}^ We must also bear in 

 mind that the genus Conocephalus of authors has applied until 

 recently, not to the present forms, but to those American species 

 which n>ust now be placed in the genera Neoconocephalus and 

 Homocoryphus. 



"^ Viile Rehn and Mcbard, Trans. Amer. Entom. Soc, xli, p. 81, (191.5). 



