398 



XATURAL HISTORY OF ARTHROPODS. 



Fig. 401. — Btm- 

 bidium IcBvif/a- 

 lum. 



slender and with long legs. Its coloi- is light brown. This species is eyeless, although 

 Grenier states that A.jiubertis, from southern France, has minute non-pigmented eye- 

 spots, and that these spots are black in A. iiiilleri, from Hungary. The' 

 larva of an Aiiophtli<iliiius from Mammoth Cave has been carefulh- 

 described by 3Ir. H. (4. Hubbard. The larva has no 

 ocelli, and 3Ir. Hubbard writes of it that, ''except in 

 its very elongate form, \ can lind no striking differences 

 )et:Ween this and other Carabid larva' allied to IVechusy 

 Trech'us and Patrohus are genera which are closely re- 

 ated, systematically, to Anojjhthalmus, but which have 

 eyes. / 



A laru-e nimiber of small beetles, which scarcely ever exceed 0.25 '''"*• ■'^.^,;7,fj'"™''"-' 

 of an inch in length, and many species of which arc fiuind running 



about in the sunlight upon the sand of river banks and of the shores 

 of lakes, are included in the genus Hembidiwn in its wider sense. In 

 projjortion to their size these beetles are among the quickest running- 

 insects, and considerable dexterity is necessary to capture them. The 

 species of Tuchys are even smaller than those of the last-mentioned 

 genus, which they resemble in habits. 



Morio ijnoryi'M, which is black and aliout (I. .5 of an inch 

 single re])resentative in the United States of the tribe of insects to 

 which it belongs, of which a few species are fuund in most parts of the 

 world. It is found in the southern States. 



The sub-family Carabina', which includes the larger and more beau- 

 tiful species of Carabidaj, are characterized as follows: "Middle coxal 

 cavities not entirely enclosed by the sterna, the epinieron of the meso- 

 stermim reaching the co.xa." The genera are more easily recognized 

 in this snb-fnmily than they are in the ]u-eceding one, and tiieir charac- 

 ters will be given, following, as usual, the authoritative work for Nort 

 Coleoptera, Drs. Le Conte and Horn's classification. 



In the tribe of which ScariUjs is tlic tyjiical genus, the posterior 

 coxa; do not attain the side margin of the body, the anterior coxal cav- 

 ities are closed liehind, the prosternum does not conceal the mesoster- 

 uum, the antenna^ arise either under a distinct frontal plate or a ridge 

 which extends backward over the eyes, the Ijody is pedunculate, and 

 the posterior coxa' are contiguous. In >Sc(tritcs itself the hind angles 

 of the thorax are wanting, the elytra are without a 

 humeral carina, the maxillae are slightly hooked at the 

 tip, and the basal joint of the antennfe is long. *S'. 

 mibterraneus is a very common species in New Eng- 

 land, and is from 0.7 to 1 inch in length, with large mandibles. It is 

 said to live in the burrows of Ckqyris, a scarabreid, and probalily de- 

 vours coprophagous larvae. Monhotia f/hriosa, a species from southern 

 Europe, which is similar to ^Semites, attains a length of over two inches. 

 Pasimachiis differs from Scarites in havinsr the hind ano-les of the Fiq.494.— /'asima- 



■- ' ciius aepressus. 



thorax distinct, the elytra with a humeral carina of variable length, 

 and the maxillie very oT)tuse at the tip. The species, which are usually mai-giiu^d with 

 blue, are all North American. P. deprcssus is of a dull black color, without strife or 

 p>unctures, and is foimil in the southern Unite(l States. 



Fig. 401;. — .l/bno 

 penryi(e. 



American 



Fig. iSS. — Hcai-iUs 

 subterraneus. 



