36o 



ENTOMOLOGICAL NEWS. 



[Oct., '17 



A new Species of Myrmecophilous Blattid. (Orthop- 

 tera; Blattidae ; Corydiinae). 



By Morgan Hebard, Philadelphia, Pa. 

 Recently specimens of a species of roach were sent us by 

 Professor W. M. Wheeler, which are found to represent a new 

 species of the genus Myrmccohlatta Mann. This genus was 

 placed in the Blattinae, the valvular type of female subgenital 

 plate, in part, being responsible for this assignment. The un- 

 armed ventral femoral margins and other features prevent this 

 association. The genus is clearly nearest Covnpsodcs Hebard,^ 

 and likewise referable to the Corydiinae. 



MYRMECOBLATTA Mann. 



1914. Myrmccohlatta Mann, Psyche, XXI, p. 172. 



GENOTvrE, by monotypy, Myrmccohlatta rchni Mann, de- 

 scribed from Guerrero Mill, Hidalgo, 

 Mexico. 



The following generic features 

 should, in our opinion, be emphasized : 

 Surface of insect supplied with mod- 

 erately numerous, short, minute hairs. 

 Ocelli absent. Antennae with first 

 joint large, about twice as long as 

 broad; second joint not as wide, sub- 

 quadrate; third joint slightly longer 

 than wide; succeeding ten joints not 

 as long as wide.^ Maxillary palpi with 

 distal joint nearly twice as long as 

 penultimate joint, distal truncation 

 weakly oblique. Clypeus produced, 

 with apex bluntly rounded, concealing 

 the mandibles. Pronotum with disk 

 evenly convex, lateral (and cephalic in 

 male) portions weakly concave; pro- 



Myrtnecoblatta wheeleri new 



species Type. <S ■ 

 Fig. I.— Dorsal view, (x lo.) 

 Fig. 2. — Ventral view of sub- 

 genital plate (greatly mag- 

 nified). 



1 1917. Mem. Am. Ent. Soc, 2, p. 208. 



- One specimen before us, with a complete antenna, shows twenty- 

 five joints in all. 



