92 TENTHEEDINIDJ^. 



2. Camptoprium atripenne. 



Hylotoma atripennis, Fair. Syst. Piez. p. 27, n. 26 (1804). 

 Hab. South America. 

 a. 2- Tapajos, H. W. Bates, Esq. 



3. Camptoprium humerale. 



(Plate VI. fig. 16.) 



Exp. al. 9 lin., long. corp. 4 lin. 



Steel-blue ; a spot at the base of the wings above, front legs 

 (tarsi and a line on the outside tibiae excepted), intermediate coxae, 

 and undersurface of femora and pectus (except a dark spot in 

 front of each of the intermediate coxae) reddish testaceous. Wings 

 smoky brown, with very wide and distinct bullar lines running 

 through the submarginal and discoidal cells, and above the anal veins. 



Possibly the male of the last species. 



Hab. Amazons. 

 a. $ . (Type of species.) Santarem. H. W. Bates, Esq. 



4. Camptoprium (?) nigriceps. 

 (Plate VI. fig. 18.) 

 Exp. al. 7-8 lin., long. corp. 3 lin. 



Shining testaceous, darkest on the thorax ; head and antennae 

 black ; four hind tibiae and tarsi fuscous ; antennae with only 10 

 joints, less distinctly separated than in the other species. Wings 

 fuscous, slightly iridescent ; a large bulla at the outer angle of the 

 first discoidal cell, the diverging bullar lines only faintly indicated ; 

 a very distinct white dot at the base of th.e stigma, and a black one 

 in the second submarginal cell. 



Closely resembles Perreyia (?) anomala ; but the antennae differ 

 so much that I dare not unite them as sexes. 



Hab. Mexico. 



a, b. $ . (Types of species.) Orizaba. M. Salle. 



42. ACHERDOCEKTJS. 



Shape of Selandria. Antennae short, 9-jointed, second joint very 

 short, third rather longer than the others, which are pear-shaped 

 and much widened at the extremity ; head transverse, very small, 

 not more than half the width of thorax. Wings with one marginal 

 appendiculate cell and four submarginal cells, the second and third 

 each receiving a recurrent nervure ; lanceolate cell very small, 

 petiolated ; at the outer angle of the first discoidal cell is a large 



