430 



COLEOPTERA. 



illaiy palpi is shorter than the fourth. This country is very 

 rich in species, among the most common of Avhich are C. gen- 

 erosa Dejean (Fig. 352) ; C. vulgaris Say (Fig. 353) ; C. pur- 

 Xmrea Olivier (Fig. 354) ; C. hirticolUs Say (Fig. 355) ; C. 

 sexguttata Fabr. (Fig. 356), a bright green active species with 

 six golden clots ; and C. punctulata Olivier* (Fig. 357). 



Carabid^ Leach. This is a family of very great extent, 

 and one very difficult to limit. In form the species vary 

 greatly ; the antennae are inserted behind the base of the man- 

 dibles under a frontal ridge ; maxillas with the outer lobe pal- 

 piform, usually biarticulate, while the inner lobe is usually 



Fig. 359. 



curved, acute and ciliate, with spines. The epimera and epi- 

 sterna of the prothorax are usually distinct ; the three anterior 

 segments of the abdomen, usually six, rarely seven or eight in 

 number, are connate. The legs are slender, formed for run- 

 ning ; anterior and middle coxae globular, posterior ones dilated 

 internally, and the tarsi are five-jointed, f 



*FiG. 358 illnsti-ates the external anatomy of this family: — 1, head of Cicindela; 

 2, maxillas of Ciciudela; 3, mentiim of Omus; 4, mentiim of Tetracha; 5, mentum 

 of Ciciudela; 6, antenuaj of the same; 7, abdomen of the male of the same; 8, pos- 

 terior coxa of the same ; 9, anterior tarsus of Omus (male) ; 10, anterior tarsus of 

 Cicindela. — From Leconte. 



jFiG. 359 illustrates the external anatomy of the Carabida: — 1, extremity of 

 the anterior tibia of Carabus, inner face ; 2, maxilla; of Cychrus ; 3, head of Cychnis ; 

 4, head of Carabus ; 5, antenna and part of head of Loricera ; 6, mentum of Carabus ; 

 7, maxilla of Carabus; 8, under surface of Pasimachus; 9, under surface of meso- 

 and metathorax of Metrius; 10, anterior tibia of Metritis; 11, under surface of 

 meso- and metathorax of Physea; 12, antennje of Pasimachus; 13, mentum of 

 Pasimachus ; 14, maxilla of Pasimachus ; 15, anterior tibia of Pasimachus ; 16, 

 head of Promecognathus; 17, mentum of Pseudomorphus, showlug the indistinct 

 giilar suture. — i^rowi Leconte, 



