452 



COLEOPTERA. 



fourths as many Coleoptera as are known to live in this 

 country. Thc}'^ comprise tlie mammotlis among insects, and it 

 is in the tropics that Ave meet with the most numerous and 

 bizarre, as well as gigantic forms. Always 

 ^^ readil}' recognized b^- their clubbed lamel- 

 late antennae, the terminal joints being 

 expanded into broad flat leaves, which, at 

 the will of the insect, can be closely shut 

 into a compact club, or loosely expanded 

 fan-like, and laid under the projecting <Ay- 

 peus, so overhanging the mouth-parts as 

 to give rise to the terms beetle-horned, 

 and "beetling;" these insects, by their 

 robust, thick, often square body, short fos- 

 sorial legs, with large hooked claws for seizing leaves and 

 stems, have been well known to all observing persons, however 

 slight their entomological knowledge. The larvai are thick 

 and fleshy cylindrical grubs, with a corneous head, and rather 

 long four-jointed antennae ; the ocelli are generally wanting ; 

 the legs are stout and long, without claws, and the last ab- 

 dominal segment is soft and baggy. The body 

 is often very transparent, the tracheas appear- 

 iug through. Fig. 405 represents a singular 

 larva (magnified twice) of this family from 

 Mr. Sanborn's collection. 



The genus Copris and allies arc known by 

 their rounded form, and the broadly expanded 

 cl^'peus, which covers in the mouth-parts. In 

 sonic species; (those of Deltochilum) the anterior 

 tarsi are wanting either in the females or both 

 sexes ; and in some species a stridulating ap- 

 paratus is found on the upper surface of the 

 abdomen. In Copris the labial palpi are dilated, 

 the first joint of the antenna! club does not i-eceive the otliers, 

 and the claws are distinct. The larva of C. Carolina Fabr., 

 while, according to Osten Sacken, having the general appear- 

 ance of the larvae of the Lamellicorns, is much thicker and 

 curved up, the back being much SAvolleu and "distended into 

 a hump-like expansion. It is about two inches long and of a 



