506 GEOGRAPHICAL DISTRIBUTION OF INSECTS. 



polls. I say as to latitude, because these groups have often 

 an extensive one as to longitude. Thus, Mr. W. S. Mao 

 Leay 'has remarked to me, that Goliathus appears to 

 belt the globe, but not under one form. The types of the 

 genus are the vast African Goliaths (G. giganteus, &c.), 

 which, as well as G. Polyphemus, and another brought 

 from Java by Dr. Horsifeld, have, like Cetonia*, the sca- 

 pulars interposed between the posterior angles of the 

 prothorax and the shoulders of the elytra b : while the 

 South American species (G. micans, &c.) have not this 

 projection of the scapulars; in this resembling Trichius. 

 Mr. MacLeay further observes, that the female of the 

 Javanese Goliathus is exactly a Cetonia, while that of the 

 Brazilian is a Trichius. But quiescent groups have not 

 generally this ample longitudinal range. Thus, Eu- 

 glossa, in both its types* one represented by Eu. cor- 

 data, and the other by Eu. surinamensis, is confined to 

 the tropical regions of America. Doryphora, likewise 

 American, seems equally confined. Asida, though a 

 southern genus, is not found to enter the tropics; and 

 Manticora and Pneumora are in nearly the same predica- 

 ment. 



Under the present head we may consider what may 

 perhaps be denominated without much impropriety en- 

 denial groups ; by which I mean those groups that are 

 regulated, as to their limits, not so much by the tempera- 

 ture, or the northing and southing of the latitude, as by 

 the general aspect and circumstances of the country. 

 Thus, the vast and nearly insular continent of Africa, 



a VOL. HI. p. 562. 



b Major General Hardwicke gave me one of this description from 

 Nepal. 



