56 THE BLATTIDAE OF PANAMA 



vex ventrad, between the ocelli, of prout's brown." Pronotum with disk light buff, 

 tinged with warm buff, pictured with delicate lines and small blotches of dresden 

 brown and dots of mummy brown, ^"^ marginal portions hyaline, with a faint buffy 

 tinge. Tegmina and wings hyaline, with a faint buffy tinge ;'^ area of dextral teg- 

 men concealed when at rest, with veins and cross-veinlets very weakly tinged with 

 buckthorn brown. Dorsal surface of abdomen dark prout's brown, with punctations 

 and lateral margins warm buff and surface shading to warm buff meso-cephalad. 

 Supra-anal plate warm buff, broadly suffused with prout's brown meso-laterad. 

 Cerci warm buff, washed with prout's brown at immediate bases. Ventral surface 

 of insect, including limbs, warm buff, narrowly margined laterad with mummy 

 brown from neck to base of subgenital plate; tibiae and tarsi flecked with mummy 

 brown. 



Length of body, 10.5; length of pronotum, 2.8; width of pronotum, 3.6; length of 

 tegmen, 12. i ; width of tegmen, 3.6 mm. 

 The type is unique. 



Neoblattella panamae new species (Plate III, figure 12.) 



The present species is distinctive in the speciaHzation of the 

 male subgenital plate, which shows somewhat closer general sim- 

 ilarity to that of N. acanthastylata, here described, than to any of 

 the other known species of the Impar Group. 



We would further note that the interocular space is very slightly 

 but distinctly wider than in any other species of the Impar Group 

 here considered, while the proportions of the maxillary palpi differ 

 and the tegminal cross-veinlets are more conspicuous and numer- 

 ous, these appearing as far proximad as the median portion of the 

 anal field. 



Type. — cf ; Rio Trinidad, Panama. March 19, 1912. (A. Busck.) 

 [United States National Museum.] 



Size and form as in acanthastylata. Interocular space extremely wide for the 

 Group, very slightly narrower than that between the antennal sockets;'^ ocellar 



"^This type of coloration is apparently developed in all the the species of the Impar 

 Group, though individually varying from obsolete (maximum recessive) to strongly 

 defined (intensive). Insufficient material is at hand to determine whether, in different 

 species, different degrees of recession or intensification are normal. 



'•^ This pattern is generally similar to that of Cariblatta fossicauda Hebard. Trans. Am. 

 Ent. Soc, xlii, pi. xii, fig. 18, (1916). 



" The recently emerged condition of the specimen is particularly evident in these 

 organs. When fully hardened, the tegmina would doubtless be tinged with buckthorn 

 brown, as in all the related forms. 



''^ In one male paratype narrower, about four- fifths as wide as that between the anten- 

 nal sockets. 



