216 PROCEEDINGS OF THE ACADEMY OF [June, 



of coquina boulder on sandy strand, March 16, 1910. (Hebard.) 

 [Hebard Collection.] 



Description of Allotype here Selected. — Very slightly larger than type. 

 Pronotum subquadrate, narrowing perceptibly cephalad; tegmina 

 absent. Ovipositor rather short, straight, somewhat elongate sub- 

 lanceolate at apex, lateral division of valves exactly at middle of 

 sides, the apex with margins unarmed. Subgenital plate arcuato- 

 convergent laterad, distal section of margin flattened but with no 

 emargination. Cerci reaching but very little beyond the tip of the 

 ovipositor. 



Measurements (in millimeters) . 



Type. Allotype. Lake Long 



Miami, Key West, Worth, Key, 



Fla. Fla. Fla. Fla. 



C? 9 c? 9 



Length of body 5. 5. 6. 43 5.1 



Length of pronotum 2.9 1.7 2.6 1.6 



Greatest width of pronotum 1.9 1.8 1.7 1.6 



Length of caudal femur 3.1 3.4 3.4 3.2 



Greatest width of caudal femur 1.1 1.4 1.4 1.2 



Length of ovipositor 2.8 2.7 



Average in Key West, Fla., series. 



cT 9 



Length of body 5.2 (5. -5.5) 5.2 (4.9-5.5) 



Length of pronotum 2.4 (2.3-2.6) 1.5 (1.3-1.7) 



Greatest width of pronotum 2. (1.9-2.1) 1.7(1.5-1.8) 



Length of caudal femur 3.1 (3. -3.2) 3.5 (3.4-3.7) 



Greatest width of caudal femur 1.2 (1.1-1.4) 1.3 (1.3-1.4) 



Length of ovipositor 2.8 (2.7-2.9) 



Color Notes. — The entire territory over which this species is known 

 has much of its surface composed of rough coquina rock which rock is 

 very white. The species is wholly terrestrial, and we find that its 

 scaly covering is silvery, usually with limbs barred and body spotted 

 and mottled with dark brown scales; this coloration so matches the 

 surface of the coquina rock that the little insects are practically 

 invisible when at rest. The insect is very much whiter in appearance 

 than its larger relative C. squamosum, even where specimens of that 

 species from the arid West are found covered with pale yellowish 

 scales. The postocular bar is very dark in this species and in the 

 entire series before us extends along the upper edge of the lateral 



43 Specimen much squeezed out, normal length probably about 5 mm. 



