New dud little-known Lagriidae and Pedilidae. 201 



are made upon the additional material examined of some 

 of the known forms. A fresh description is given of such 

 species of which the identification is at all doubtful.* 

 The Central-American Macratriae (10) were dealt with by 

 me in 1890, and those of Japan (5) by G. Lewis in 1895. 

 From that date onwards about fifty species of the genus 

 have been named or described by Pic, in innumerable 

 scattered papers. Very few of these insects appear to 

 be represented in the collections before me. The genus 

 Macratria is a particularly difficult one to deal with, owing 

 to the great similarity of the species from widely distant 

 regions, and to the absence in most of them of external 

 sexual characters. In three, however, the anterior or 

 posterior tibiae are toothed or modified in the J, and the 

 prothorax in one of these is also deeply excavate on each 

 side on the anterior part of the disc in the same sex. A 

 few others have the apical joint of the ^-antenna elongated, 

 as in Lagria. The greatly thickened basal joint of the 

 anterior tarsi (looking at first sight like a fractured portion 

 of the tibia), not necessarily a ^-character, in some of the 

 Tropical American forms is noteworthy, and is doubtless 

 indicative of arboreal habits. The males dissected exhibit 

 remarkably specific distinctions in the genital armature ; 

 but no attempt has been made to examine these characters 

 generally, the material being much too scanty for the 

 purpose. A trifid apex to the pygidium in the $ of one 

 species was noticed by me in 1890, and two others with 

 a somewhat similar structure are here recorded. .1/. 

 fulvipes, Pasc, described in I860, still remains unique in 

 the Museum. 



Oriental. Indo-Malayan, or Austro-Malayan Species.f 



The numerous forms enumerated from these regions may 

 be grouped thus : — 



a. Antermal joints 9-11 elongated: species larger, 

 upwards of 3 mm. in length. 

 a 1 . Elytra with definite rows of punctures. 



a 2 . Body black, with metallic lustre. . . . Xos. 1, 2. 



* The (pinned) type of the genus, M. linearis, Newm., badly 



figured by the author, is contained in the Museum, hut 1 have not 

 ventured to examine it thoroughly. 

 t Including New Guinea. 



