ADEPHAGA. 



very large Epipleura ; having no wings, and the hand of the male not being dilated 

 nor furnished with a brush. The type of this sombre tribe is Mantkora Gigas. 

 From this statement it appears that in this Tribe, as at present known, there is no 

 circular arrangement, it may be rather said to form a semicircle, beginning with 

 the Colliuridans, passing from them by the narrow Cicindelidans to the type, and 

 thence proceeding by Megacephala and the dark-coloured Cicindelidans towards 

 Manticora with which the semicircle terminates at its lower extremity. To com- 

 plete the circle it will be necessary to cast an eye over the other branch of the 

 Geadephaga, the Eutrecha, and endeavour to discover which, amongst its different 

 tribes, will best supply us with the means of doing it. Our eye probably might 

 first be caught by the gigantic Anthice, and immediately we should be struck by a 

 considerable resemblance between these, especially the males, and Manticora, and 

 bv a closer examination be convinced that they approached each other in the line 

 of affinities ; having found a link that connects with one end of our semicircle, 

 we should next look round for some slender long-necked form to place next the 

 other, and we should soon discover a group, consisting of several genera, in the 

 same tribe with Anthia, that exhibited a most remarkable resemblance to the Col- 

 liuridans ; upon inspecting these more nearly we should select Agra as almost the 

 counterpart of CoUiuris, comparing the head, the neck, the elytra, and especially 

 the tarsi, we should find them all formed upon the same plan, except that in CoUi- 

 uris the penultimate joint of the latter has only one lobe, which mAgra is bilobed, 

 and feel a strong conviction, that this agreement in structure was not merely an 

 analogical resemblance, 8 but an indication of close affinity. If we next look for 

 some middle form, which, like Cicindela campestris, may be regarded as nearly 

 equidistant from the two extremes, perhaps no better known genus could be selected 

 than Calleida of De Jean, which, in colour, is almost as brilliant as a Cicindela ; 

 and, in form, may be regarded as nearly the mean of the semicircle of Truncipennia 

 to which it belongs. This is the present aspect of the central group and of the 

 tribe which appears most nearly connected with it ; but to what alterations future 

 discoveries may open a door I will not presume to conjecture. It would be rash 

 to affirm that insects may not be found to complete a separate circle both of 

 Euptera and Truncipennia, but the above arrangement seems to follow from our 

 present knowledge of them. 



8 Mr. W. S. Mac Leay (Annulos. Javan. 8j seems to regard these as only analogical characters, but the points of 

 agreement are too numerous for any thing but affinity. The agreement of these two genera in having all the tarsi of both 

 sexes dilated, and furnished with a brush, with the penultimate joints lobed, is alone a sufficient proof. 



