210 



PROCEEDINGS OF THE ACADEMY OF 



[June, 



broadened and produced caudad, its caudal margin forming nearly 

 a semicircle, the cephalic portion of the dorsum well rounded, the 

 broadened caudal portion of the dorsum distinctly flattened. Teg- 

 mina with dorsal field as broad as pronotum at its widest part, 

 tympanum perfectly developed, caudal margin*of tegmina subequal 

 in arcuation to the caudal margin of the pronotum; lateral field of 

 tegmina well developed, embracing abdomen; the cephalic two- 

 thirds of the tegmina concealed by the pronotum, the visible portion 

 extending caudad of the caudal margin of the pronotum a distance 

 subequal to one-third the greatest pronotal length. 



Cerci more than one-half as long as abdomen. Cephalic tibiae 

 with cephalic face bearing a distinct tympanum. Caudal femora 

 greatly dilated. Caudal tibiae with three pair of well-developed 

 distal spurs, the dorso-internal very slightly shorter than the ventro- 

 internal spur, the medio-internal spur is the longest and has 'its length 



Fig. 17. — C y clop til u m squamosum. 

 Dorsal view of type. (X 4.) 



Fig. 18. — Cycloptilum squamosum. In- 

 ternal face of caudal metatarsus and 

 internal tibial spurs. (Greatly mag- 

 nified.) 



contained two and one-quarter times in the metatarsus. Caudal 

 metatarsus rather long, straight, rather broad, sulcate dorsad, both 

 dorsal margins armed with short, well-separated serrations five on 

 inner and eight on outer margin, 36 the distal extremity armed on 

 both sides with a spur, the somewhat longer inner spur reaching to 

 nearly the end of the first quarter of the terminal tarsal joint. 



Allotypic 9 : Dallas, Texas. [United States National Museum 

 Collection.] 



Description of Allotype here Selected. — The specimen differs from 

 the male type in that it is somewhat larger, the pronotum is sub- 

 quadrate, narrowing very slightly cephalad, and the tegmina are 

 absent. The subgenital plate is arcuato-convergent laterad, with 



36 See note under Cryptoptilum antUlarum concerning variability as to number 

 of these serrations. 



