1017.1 147 



caviconiia Fairm. The genitalia are exposed in tlie specimen described, 

 the armature exhibiting four pairs of curved hooks or jovocesses and a 

 central, rather stout median lobe. 



8. — Disema fraterna, n. sp. 



d" . Extremely like D. pUcatilis, but differing as follows :—Xtirrii\ver ; 

 tlit^ elytra green, with the alternate interstices only tuberculate, the opaque 

 l.'iteial patch with numerous transverse impressed lines; the extremely largo 

 eyes touching above; the prothorax less rounded at the sides, relatively 

 iinwower, and distinctly longer than broad ; the jjrojecting paired processes 

 of the genital armature dissimilarly shnped. 



Length 10, breadth '.) mm. 



Jlah. : Amazons, Santarem {II. W. Bates). 



One male, in fragmentary condition, but obviously different from 

 D. pUcafilis and requiring a separate name. It has the anterior and 

 posterior legs similarly formed ; the intermediate legs, and the tip of the 

 antennae, are, unfortunately, broken off. D. fralcnia doubtless represents 

 D. plicadlis lower down the Amazon. 



9. — Diseina macro)>f/(j>/in, n. sp. 



o". Elongate, widened posteriorly, rathtr dull; piceous, the antennae 

 and tarsi ferruginous, the opaque elytral patch brown; clothed, the legs 

 included, with long, tine, scattered, bristly hairs. Eyes extremely large, 

 contiguous above and beneath. Antennae long, stout, serrate, joint 11 

 thickened, rather longer than 9 and 10 united, rough and flattened on its 

 inner face. Prothorax transverse, slightly wider than the head, rounded at 

 tlie sides, constricted before the raised basal margin ; impressed witli scattered 

 intermixed coarse and fine punctures, canaliculate down the middle, and tri- 

 angularly excavate at the base. Elytra at the base nearly twice as broad as 

 the prothorax, rapidly widening to the middle, and arcuately narrowed thence 

 to the apex ; finely crenato-striate, the interstices convex, each witli a series of 

 somewhat closely placed minute tubercles followed by a small setigerous punc- 

 ture ; the opaque lateral patch large, about half the length of the elytron, 

 extending from the seventh stria to the margin. Ventral segment 5 hollowed 

 down the middle posteriorly and emarginate at the apex. Anterior tibiae 

 curved externally, bisinuate within ; posterior femora with a minute dentiform 

 projection beyond the middle, and sulcate thence to the base, the outer half of 

 the groove sericeous within ; posterior tibiae feebly sinuate. 



Length 10, breadth 4 mm. 



Hah.: Amazons, Santarem (//. W. Bafrti). 



One male, now wanting the intermediate legs. Lai-gcr and darker 

 than the insect here identified as D. crassicornis Milkl., d' , the prothorax 

 shorter, the elytra with deeper crenate striae, convex intei'stices, and a 



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