1909.] NATURAL SCIENCES OF PHILADELPHIA. 129 



Limbs of the female rather short, cephalic femora very slightly longer 



than the mesonotum, basal flexure pronounced, 



cephalic tibise slightly longer than the femora; 



median femora moderately robust, about equal \^S^ 



to the mesonotum, with the median segment, in 



length, subapical spine prominent, but smaller Fl §- 9 - Dia-phero- 

 . , , , i . mera (Ceratites) 



than in the male, ventral carmae serrato-dentate, covillece n.sp. La- 

 median tibiae slightly longer than the femora ; caudal texai view of sub- 

 femora reaching to the middle of the fourth abdom- G f male type, 

 inal segment, subapical spine similar to that of the ( x 4 -) 



median limbs, caudal tibiae longer than the femora. 



General color of the male buff-yellow becoming vinaceous-rufous 

 on the abdomen; antennae madder becoming blackish-brown distad; 

 eyes tawny lined with vandyke brown. General color of the female 

 bister becoming ashy and f rench gray on the limbs ; antennae similar 

 to those of the male but duller. 



Measurements. 



& 9 



Length of body, 81 mm. 92 mm. 



Length of pronotum, 3.6 " 5 



Length of mesonotum, 17.6 " 19.4 



Length of metanotum (including median 



segment), 17 15 



Length of cephalic femur, 23 " 20.5 



Length of median femur, 15.2 " 14.7 



Length of caudal femur, 21.5 " 19 



u 

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(I 

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The male type is the only specimen of that sex seen by us. One 

 paratypic adult female, taken July 9, and two adult females taken 

 July 10 on the greasewood growth on the mesa at the east foot of the 

 Franklin Mountains, have been examined. A series of twelve immature 

 female specimens in about five different stages of growth are now 

 before us. These individuals are all from the Franklin Mountains 

 and mesa at the base of the same, July 9-11, except two from near 

 Alamogordo, one taken April 23, 1902, by Viereck and Rehn, the other 

 in the adjacent Dry Canyon, July 13, by Hebard and Rehn. All the 

 stages but one are represented in the material taken July 9-11, the 

 April specimen being smaller than any of the others. The half 

 developed individuals show an interesting protective color adaptation, 

 the base color being apple or oil green with the abdomen and limbs 

 annulate with olive, the result being a color scheme blending wonder- 

 fully with the peculiar joint-like terminal twigs of the greasewood on 

 9 



