XXXl'i, '21] ENTOMOLOGICAL XF.WS 165 



asymmetrical, with two simple styles. Ventro -cephalic margin 

 of cephalic femora supplied distad with well-spaced, minutely 

 microscopic, short but heavy spinulae, terminated by two elon- 

 gate spines. Caudal margins of femora unarmed, except for a 

 distal spine on one of the median femora, cephalic margins of 

 median femora armed with two and one distal elongate spines 

 and with a similar genicular spine. 3 Minute pulvilli present 

 on four proximal tarsal joints. Arolia present between the 

 simple, symmetrical tarsal claws. 



In the type of Hypnornoides burn Rehn, the small spines 

 of the ventro-cephalic margins of the cephalic femora are pili- 

 form and much more numerous, large pulvilli are present on 

 the four proximal tarsal joints and large arolia are present be- 

 tween the simple, strongly asymmetrical tarsal claws. That 

 genus, known only from the female sex, appears to be ex- 

 tremely close to Hypnorna and may indeed represent the female 

 sex of the genotype. Intmnicli Stal. 



Euhypnorna grata new species (Plate III, figures 1, 2). 



Late at night, while shining the foliage on the swampy jungle 

 border with a hand electric flash lamp, what appeared to be a 

 small beetle was noticed, resting longitudinally on the surface 

 of a leaf. That specimen was seized and placed in the cyanide 

 bottle. It was not until we had returned to the ship and were 

 packing the material taken that we found that insect to be a 

 remarkable cockroach upon which specimen the present new 

 genus and species is based. 



The blackish-brown pronotum with narrow hyaline lateral 

 margins, and tegmina, which are blackish mummy brown prox- 

 imacl, weak ochraceous-tawny in all other portions, give this 

 species a strikingly bicolored appearance, not shared by any of 

 the species of the related genera. 



Type. <3 ; Paris Field, Cristobal, Canal Zone, Panama. July 

 7, 1920. (M. Hebard.) [Hebard Collection, Type No. 762.] 



We add the- following characters of specific value to those 

 given in the generic description: 



Eyes very large, occipital ocular depth equal to width between anten- 

 nal sockets, interocular space two-fifths that width; that area and the 



3 The caudal femora are missing in the single specimen before us. 



