206 COLEOPTERA 



Carabids of the genus Aqms, tliat pass a large part of their 

 lives under stones below high-water mark (emerging only when 

 the tide uncovers them), on the borders of the English Channel 

 and elsewhere, are very closely allied to these Ijlind Insects, and 

 have themselves only very small eyes, which, moreover, according 

 to Hammond and Miall, are covered in larger part Ijy a peculiar 

 shield.^ A few Carabidae, of the genera Glyj^his and Orthogonivs, 

 are believed to live in the nests of Termites. Savage found the 

 larva of G. sculptilis in the nests of Tenncs hellicosus ; it has 

 been described by Horn, and is said to bear so great a resem- 

 blance to young queens of the Termites as to have been mistaken 

 for them.^ Mr. Havilaud found BliAypalomelus angusticollis in 

 Termites' nests in South Africa. Pcringuey states that it emits 

 a very strong and disagreeable odour. It is probal)le that it 

 preys on the Termites, and this also is believed to be the habit 

 of the Ceylonese Hdlnodcs tivproljanae. Some species of thti 

 Mediterranean genus Siagona stridulate by means of a file on 

 the tmder surface of the prothorax, rubbed by a striate area, 

 adapted in form, on the anterior femora. 



A valuable memoir on the classification of this important 

 family is due to the late Dr. (1. H. Horn ; ^ he arranges Carabidae 

 in three sub-families ; we think it necessary to add a fourth for 

 Mormoli/rc : 



1. Middle coxal cavities enclosed externally l>y the junction of tlie ineso- and 



meta-stenuun ; neither epinieron nor e]nsterniuii attaining tlie 



cavity. 

 Head l)eneath, with a deep groove on each side near the eye fur 



tlie reception of the antennae or a part thereof. 



Sub-fam. 3. Pseudomorphides. 

 Head without antennal grooves. Sub-fam. 2. Harpalides. 



2. Middle coxal cavities attained on the outside Ity the tij^s of the episterna 



and epimera. Sub-fam. 4. Mormolycides. 



3. Middle coxal cavities attained on the outside liy the tips of the eijimera, 



but not by those of the episterna. Sub-fam. 1. Carabides. 



These four sub-families are of extremely different extent and 

 nature. The Harpalides are the dominant forms, and include 

 upwards of 10,000 known species; while the various tribes 

 into which the sub-family is divided include, as a rule, each many 



■" natural History of aquatic Insects, 1895, p. 376. 



- Tr. Amcr. cnt. Sac. xv. 1888, p. 18. 



3 Op. cit. V. 1881, p. 91 ; cf. Shar]i, Tr. cnt. Soc. London, 1882, p. 61. 



