431 



COLEOPTEKA. 



Fiar. :?74. 



weeks, and the pupa lives half that time ; the beetles often 

 hibernate. The larva has the general form of that of Poecilus. 



The species of Harpalus are large, 

 with a very square pro thorax. H. 

 caliginosus Say (Fig. 374) is bene- 

 ficial in eating cut-worms and other 

 injurious larvae. Fig. 375 represents 

 a larva supposed to belong to this or 

 an allied genus. The blind Anopli- ^r- 

 ilnilinus Tellkampfii Erichs. from the jU 

 Mammoth Cave, has no eyes, while 

 the legs are very long, especially 

 the narrow fore tibia; ; but in Tre- 

 chtix, which is closely allied to the blind Cave Beetle, 

 the eyes are as large as usual, and the legs stouter. Fig. 375. 



Sembidium com- 

 prises species of 

 - very small size 

 a n d variable in 

 form, in which t he 

 anterior tibia' are 

 not dilated at the 



base. They are found abundantly under the refuse of 

 freshets and tides, preying upon dead animal matter 

 and other insects, and a species of Cillenum, 

 closely allied to Bembidium, is known to seize ^ ^ 

 the beach-flea, Gamniarus, and devour it. 

 Fig. 376 (A, a little enlarged ; B, head ; c, 

 mandible ; e, antenna ; /, labiurn and its two- 

 jointed palpi ; f/, maxilla? ; A, /, ,/, under side 

 of different abdominal rings) represents the 

 larva of a Ground beetle, which, according to 

 Fig. 377. Walsh, preys upon the larva of the Plum cur- 

 culio while under ground. Fig. 377 represents the Fig. m 

 supposed larva of a European species of Clilcenius, and Fig. 

 378 what we suppose is the larva of a beetle allied to Cillenum. 



AMPHIZOID.E Leconte. The genus Amphizoa (Fig. 379. A. 

 insolens ; a, antenna ; b. labrum : <-. mandibles ; d. maxilla; ; e, 



