320 



Some remarkable Forms i?i E?iiomolog2/, 



was known to Linnaeus. Four or five others have, however, 

 recently been described by Continental entomologists. My 



own cabinet contains three 

 other new and undescribed 

 species, and I am acquaint- 

 ed with two or three others. 

 The outline (Jig. 67.) re- 

 presents the large- eyed 

 Diopsis macrophthalma of 

 Dalman.'^ 



The second memoir to 

 which I shall refer, was 

 published by Francillon 

 in 1795, containing a de- 

 scription of his splendid 

 kangaroo beetle, .Scarabae^us macropus (makros, long, pons, a 

 foot), which was supposed to be a native of Potosi, in South 

 America. The grotesque appearance of the insect, produced 

 by the size of the hind legs, will be observed in my sketch. 

 {Jig, 68. natural size.) 



* DiopsiSy assisted inspection : makroSy long, opthalmoSy eye ; peduncu- 

 lated eye. As these ocular footstalks may be supposed to be flexible, and 

 the eyes thereby applicable to a variety of directions, it may be remarked 

 that this is not the case. Mr. Parsons, in his excellent " Account of the 

 ^Discoveries of Mliller and others, in the Organs of Vision in Insects and 

 Crustacea," states (Vol. IV. p. 220.): — " In insects, the eyes are almost 

 always immovable ; and, althdugh in the genera A^chias and Diopsis, 

 dipterous insects of hot climates, the eyes are fixed upon filaments, yet, 

 even here, they invariably maintain the same position in relation to each 

 other." — J. D. 



