MORGAN HEBARD 131 



palpi with distal joints darkened. Ventral surface of abdomen buckthorn 

 brown. Pronotum much as in notatus; shining, with cephalic margin rather 

 narrowly and lateral margins more broadly ochraceous-buff; remaining por- 

 tions blackish carob brown except for a large, transverse area of ochraceous- 

 buff meso-caudad, the outline of which is vague,' but its form appreciably 

 rounded trapezoidal.* Tegmina as in la)nprus, translucent suffused with 

 prout's brown, this regularly distributed but deepest at the humeral trunk, 

 except the costal margin which is broadly buffy, the transition to the darker 

 portions of the tegmina gradual. Wings transparent, very weakly tinged 

 with prout's brown, this heaviest in area of costal veins to near their apices. 

 Dorsal surface of abdomen buckthorn brown, darkened laterad but margined 

 with ochraceous-buff. Cerci ochraceous-buff weakly suffused with prout's 

 brown in proximal portions dorsad, prout's brown ventrad. 



Length of body, 9.3; length of pronotum, 2.9; width of pronotum, 3.7; 

 length of tegmen, 11; length of caudal tibia, 4.G; length of caudal metatarsus, 

 2 mm. 



Large series of two species of the genus before us show that 

 there is Httle variation in the distinctive male genitaha de- 

 veloped in each. In other respects close general similarity is 

 shown by the known species of Chromatonotus. 



The type is unique. 



Blattinae 



Periplaneta australasiae (Fabricius) 



Guatemala City, 2 adults. 



Periplaneta americana (Linnaeus) 

 Guatemala City, 1 cf . 



Panchlorinae 



Leucophaea maderae (Fabricius) 

 Guatemala City, 1 cf, 2 9 . 



Pycnoseelus surinamensis (Linnaeus) 

 Guatemala City, 4 9,3 juv. 



Blaberinae 



Archimandrita tessellata Rehn 



Guatemala City, 4 d^, 1 9 , [Paris Museum and Hebard Chi.]. 

 All of these specimens are heavily tessellate. All show a 



* The broad base forming the cephalic margin is seen to be invad(>d on each 

 side by a weak suffusion from the darker area cephalad. 



TRANS. AM. ENT. SOC, XLVUI. 



