46 NORTH AMERICAN BLATTIDAE 



Tegmina transparent buckthorn brown. Dorsal surface of abdo- 

 men more heavily suffused, mesal line absent in darker specimens. 

 General coloration of ventral surface of abdomen, russet. 



Ootheca. — The only ootheca before us is very slightly extruded. 

 We can, however, say that the surface is smooth, the caudal mar- 

 gin perpendicular, feebly convex throughout, the width 3.1 milli- 

 meters. It is carried with suture dorsad. 



The material recorded below is all that is known of this inter- 

 esting species. 



Specimens Examined: 12; 7 males and 5 females. 



Huachuca Mountains, Arizona, (C. Schaeffer), i d', 4 9 , [B. I., U. S. N. M. and 

 Hebard Cln.]. 



Garces, Huachuca Mountains, Ariz., i d", [U. S. N. M.]. 



Santa Rita ^Mountains, Ariz., over 5000 feet, VI, VII, (F. H. Snow), 4 d", i 9 

 with ootheca, type, allotype, paratypes, [Univ. Kansas, Hebard Cln. and A. N. S. P.]. 



Kit's Peak Rincon, Baboquivari Mountains, Ariz., 4000 feet, VIII, i, 1916, (Rehn 

 and Lutz; at light), i &, [A. M. N. H.]. 



SUPELLA Shelford 

 191 1. Supella Shelford, Ent. Monthly Mag., ser. 2, xxii, p. 155. 



Of the genera here considered, nearer relationship is found to 

 Latiblattella, the present genus differing widely in the conspicuous 

 rounded angulation formed at the juncture of the interocellar space 

 and the ocellar areas, the extremely slender limbs, with cephalic 

 femora showing type A armament of the ventro-cephalic margins 

 and the strongly oblique discoidal sectors of the tegmina. 



The genus is known from a single species. 



Genotype : Supella supellectilium [BlaUa supellectilium] (Ser- 

 ville). 



Generic Description. — Sexes decidedly different in form. Head 

 with eyes well separated ; inter-ocular-ocellar area decidedly 

 flattened, raised so that ocellar areas are very sharply defined 

 with rounded angle there formed conspicuous. Tegmina in fully 

 developed condition (only in male) delicate, not broad; discoidal 

 sectors numerous (usually 9 to 11), strongly oblique. Tegmina 

 decidedly reduced in female. Wings hyaline, faintly iridescent; 

 costal veins feebly clubbed distad, intercalated triangle small but 

 evident. Abdomen of male with sixth dorsal segment specialized 



