DIAPHORUS. 159 



towards it. Feet rather long, but not very slender ; the first joint 

 of 'the hind tarsi without bristles ; the pulvilli of the fore tarsi 

 elongated in the males of all species ; in the males of some species 

 the same is the case with the pulvilli of the middle tarsi ; in some 

 with the pulvilli of all the tarsi. The hypopygiuni small, imbed- 

 ded, on the posterior end with stouter bristles. 



The name of the genus (from Sia^opo;, different) signifies nothing 

 more but tBat the species on which this genus was established were 

 remarkably different from the species of previous genera, and is 

 therefore not at all characteristic. 



The known species of Diaphorus are found in Europe, Asia, 

 Africa and America. 



Table for the determination of the Species. 



< Color of the body non-metallic, black. 1 opacus Lw. 



\ Color of the body metallic-green. 2 



( Feet entirely yellow. 2 mundus Lw. 



( Feet not entirely yellow. 3 



( Tegulss with black cilia. 4 



I Tegulse with whitish cilia. 6 



( Eyes of the male contiguous. 3 spectabilis Lw. 



\ Eyes of the male not contiguous. 5 



f All the tibiae yellow. 4 sodalis Lw. 



5 -I Only the first half of the four anterior tibise yellow. 



5 lamellatus, nov. sp. 



fLast segment of the fourth longitudinal vein not internipted. 

 6 leucostomus Lw. 

 j Last segment of the fourth longitudinal vein interrupted. 



7 interruptus Lw. 



Systematical arrangement of the Species. 



I. The eyes of the male contiguous upon the front. 



1. opacus Lw. 3. spectabilis Lw. 



2. mundus Lw. 



II. The eyes of the male not contiguous upon the front. 



A. The last segment of the fourth longitudinal vein not interrupted. 



4. sodalis Lw f 6. lamellatus, nov. sp. 



5. leucostomus Lw. 



B. The last segment of the fourth longitudinal vein interrupted. 



7. interruptus Lw. 



