138 THE BLATTIDAE OF PANAMA 



vein, and in area of costal veins opaque, first ochraceous-tawny, then mummy brown, 

 then in area of clubbed portions of veins buffy.'ss Dorsal surface of abdomen dull 

 ochraceous-orange, cerci slightly paler. Ventral surface ochraceous-tawny, shading 

 to ochraceous-bufT on abdomen. Limbs ochraceous-buff tinged with orange. 



The allotype and a paratypic male from Gatun show the maximum recessive 

 coloration of the series; the head and disk of pronotum are ochraceous-tawny, the 

 tegmina likewise paler. The distinctive occipital markings and character of teg- 

 minal coloration occur virtuall)- unaltered. The brown of the radial field of the 

 wings, however, does not contrast nearly as conspicuously with the more reddish 

 remaining portions, nor is the clubbed area of the costal veins as conspicuously 

 buffy. 



In addition to the type and allotype, the following paratypic 

 series is at hand. 



Porto Bello, Panama, II, 19, 1911, (Schwarz), i cf . 



Gatun, Canal Zone, Pan., VII, 17 to 2t„ 1916, (Harrower), i c?. 



Rio Trinidad, Pan., V, i, 191 1, (Busck), i cf. 



Juan Mina Plantation, C. Z.. Pan., VII, 13, 191 8, (Dietz and Zetek; sweeping 

 grass), icf, [U. S. N. M.]. 



Chorisoneura gemmicula new species (Plate VI, figures 20 to 22.) 



The present insect is closely related to C. specilliger, described 

 in the preceding pages. In addition to marked differences in the 

 male genitalia, the present species differs in the much more dis- 

 tinctive cephalic and pronotal markings. In other features of 

 coloration, however, these two species agree to an exceptional 

 degree. 



Type. — c?;Cabima, Panama. May 20, 1911. (A. Busck.) 

 [United States National Museum.] 



Size, interocular width, maxillary palpi, pronotum, tegmina (discoidal vein with 

 fourteen to sixteen costal branches, with two or three braftches at apex toward 

 sutural margin; discoidal sectors eleven to twelve in series), wings (twelve costal 

 veins, discoidal and median veins connected by eight inconspicuous transverse 

 veinlets), supra-anal plate and character of limbs as in specilliger. 



Subgenital plate rather small; lateral margins form small plates beneath cereal 

 bases, thence these margins are brief to the styles, which are not as deeply inset in 

 sockets as in specilliger; sinistral margin moderately convex from small subcercal 

 production, the area contained by this convexity somewhat swollen ; dextral margin 

 oblique from base of small subcercal production; styles elongate, trilamellate, 

 tapering from large base to distal three-fourths, where a shoulder occurs, the 

 cephalic external portion thence produced, slender, to the sharply acute apex; 



'"» This (listinclive type of tegminal and wing coloration is dui)licate(l in full in gem- 

 micula. It does not occur in any other species of Chorisoneura known to us. 



