12 THE BLATTIDAE OF PANAMA 



The series at hand shows conclusively that jansoni is merely 

 a dark color phase of the present species, unworthy of nominal 

 recognition. 



Color. — In the present material four males, one female and one 

 immature are shining hazel in general coloration. Of these, 

 several are less reddish than the others, approaching ochraceous- 

 tawny. All but one of the remaining specimens are darker, 

 shining chestnut in general coloration, with one individual alone 

 having the underparts as pale as in the light examples. 



A single female is shining burnt sienna in general coloration, 

 with tegmina distinctively marked proximad and mesad with 

 moderately broad transverse bands of blackish brown, of which 

 the median band is the wider. 



The value of these color features would be more difficult to de- 

 termine were it not known that similar and fully as remarkable 

 color differences occur in the allied L. flabellata. Moreover, in 

 the present series, other less noticeable but far more important 

 features of coloration are common to all individuals. Those 

 particularly noteworthy are: the maxillary palpi which are pale, 

 with distal half of fourth and entire fifth joint very dark blackish; 

 the pale antennae, spines of the limbs and tarsal joints. The 

 color of the cerci, however, varies in accord with the individual 

 general coloration. 



Structure. — In the present insect the styles of the male subgenital 

 plate are asymmetrical: the sinistral small and ovoid, situated on 

 the dorsal surface of the plate at the margin and directed dorsad; 

 immediately dextrad is situated a smaller dark chitinous projection 

 directed caudad, with thorn-like distal portion curving ventrad; 

 the margin between this process and the dextral style is weakly 

 produced; dextral style nearly three times as long as sinistral, 

 broader at base, tapering gently to the rounded apex, situated on 

 the free margin and directed mesad along that margin. 



Ootheca. — One female is at hand with ootheca partially extruded, 

 carried horizontal. The ootheca has the suture supplied with 

 rather widely spaced minute nodes, while a well-developed 

 longitudinal carina is situated on each side about one-third the 

 distance from the suture to the ventral margin. 



