130 COLOMBIAN DERMAPTERA AND ORTHOPTERA 



between these tawny. Tegmina opaque, ochraceous-buff ; with a broad irreg- 

 ular proximal band of black from sutural margin to humeral trunk, a ray of 

 this color extending caudad on humeral trunk a distance nearly the width of 

 the band, and with a meso-lateral, irregular, rounded-trigonal black marking 

 opposite the apex of the anal field, this marking more extensive in the male. 

 Wings opaque, anterior field shining dresden brown, posterior field dull buffy 

 brown with veins mummy brown. Dorsal surface of abdomen blackish, 

 broadly margined laterad with buffy, supra-anal plate and cerci of female 

 entirely blackish. Underparts of male blackish, a few flecks of buffy on the 

 coxae and abdomen broadly margined laterad with buffy ; of female solid blackish. 



This beautiful insect is known from the single pair. 



Mantidae 

 orthoderinae 



Choeradodis rhombicollis (Latreille) 



1833. Mantis rhomhicoUis Latreille, in Humboldt and Bonpland, Obs., Zool., 

 ii, p. 103, pi. xxxix, figs. 2 and 3. (No locality given.) 



Las Mangos, (Juntas), Cauca, 1005 feet, II, 1907, (M. G. Palmer), 

 16", [A. N. S. P.]. 



La Maria, Cauca, 4700 feet, (M. G. Palmer), 1 9 , [A. N. S. P.]. 



These specimens are typical of rhombicollis as discussed by 

 Saussure and Zehntner. The inner face of the cephaUc femora 

 bears a large and shining black spot, through which the ungicular 

 sulcus runs at about the distal third. A Central American series 

 before us shows that the size of this spot varies individual!}^, when 

 reduced not extending beyond the ungicular sulcus. The pro- 

 notal form also shows considerable individual variation. As a 

 result we feel satisfied that the features given by Saussure and 

 Zehntner^^ to separate C. servillei from this species are of no 

 specific value. 



MANTINAE 

 Acontiothespis^^ iriodes new species (Plate XVIII, fig. 5.) 



This diminutive and beautiful insect shows nearest relationship 

 to A. cordillerae (Saussure) ^^ and A. vitrea (Saussure and Zehnt- 



" Biol. Cent.-Amer., Orth., i, p. 12(), pi. IX, figs. 1 to 3. 



^* New name for Aconlistes, emended to Acontista by Saussure, as proposed 

 by Rehn, Trans. Am. Ent. Soc, xlii, p. 258, (1916). 



" It would appear probable that Saussure and Zehntner's mexicana and 

 mexicana variety quadrimaculata are mere color variations of this species. 



