^8 THE BLATTIDAE OF PANAMA 



other species.*" In other respects this sex agrees with the description of the female 

 allotype of N. chagrensis, given in the present paper. 

 Measurements {in millimeters) 



Length of Length of Width of Length of Width of 



cf body pronotum pronotum tegmen tegmen 



Type II 2.65 3:65 II. 3 3-5 



Paratype 10 2.55 3.6 11. i 3-3 



Paratype 11.5 2.7 3.6 11.8 3.7 



9 

 Allotype 10.8 2.8 3.8 II. 8 3-3 



The coloration agrees closely with the color description given for chagrensis under 

 that species, the only difference being that the head markings are obsolete or sub- 

 obsolete in the present material. The immature example at hand agrees fully with 

 the adults in coloration. 



In addition to the type and allotype the following material is at 

 hand, of which the adults are designated paratypes. 



Rio Trinidad, Panama, III, 29, 1912, (Busck), i juv.; V, 7, 191 1 

 and VI, 6, 1912, (Busck), 2 cT. 

 Neoblattella impar" new species (Plate III, figure 13.) 



This species should follow N. payiamae in linear^arrangement, the 

 general structure and coloration showing close affinity. The 

 male subgenital plate is, however, of a type in no w^ay comparable 

 to that found in any of the species of the present genus before us, 

 or indeed in any of the forms of the Blattellites. 



Type.^d"; Tabernilla, Canal Zone, Panama. (A. H. Jennings.) 

 [United States National Museum.] 



Size and form much like thatof .V. acanthastylata. Inter-ocular-ocellar area depla- 

 nate, weakly defined; interocular space moderately wide, four-fifths as wide as that 

 between antennal sockets; ocelli small. Maxillary palpi very elongate, third and 

 fourth joints subequal in length, fifth (distal) joint about two-thirds as long as 

 fourth, enlarged, obliquely truncate to near its base, appreciably more elongate than 

 in N. acanthastylata. Pronotum as in panamae. Tegmina delicate; with (six to nine, 

 usually seven) longitudinal discoidal sectors; cross- veinlets very weak, except distad 

 and in area of dextral tegmen concealed when at rest, where they are more distinct. 



»» The very slight degree of difference in this feature is realized when we consider that 

 the otherwise similar female of A^. chagrensis, here described, has the interocular space 

 appreciably narrower than in any of the species here referred to, though in that insect its 

 width is four-fifths that between the antennal sockets. 



«i In allusion to the remarkable, and exceedingly asymmetrical, male subgenital plate. 



