142 [Juni-, 



outer portion of the elytra in one or both sexes, which, however, is 

 occasionally wanting. The eyes in the typical forms are extremely large 

 and contiguous in the male, and the posterior femora are sometimes 

 toothed, and the intermediate femora lobed, in the same sex, remarkable 

 modifications in the structure of one or more of the J -tibiae also oc- 

 curring occasionally, as in Statira. Several species vary in the colour 

 of the prothorax (testaceous to black), elytra, and legs, others seem 

 fairly constant. SjjJiraf/idoj^Jioi'us singitlaris Champ., from Panama, 

 the 6 of which is unknown, would, perhaps, be better included under 

 D/se//m, the opaque area on the elytra being placed in much the same 

 position as in the corresponding sex of D. tJioracica Makl. 



Elytra eloug-ate, subparallel in their basal half, with an opaque lateral patch 

 in both sexes ; protliorax almost smooth ; antennae serrate. 



Posterior femora unarmed in c? Species 1-4. 



Posterior femora toothed in c? Species 5. 



Elytra long- or moderately long, in most of tlie species widening to the middle 

 and with the sides rounded thence to the apex. 



Elytra with a large opaque lateral patch in r?*; antennae serrate. 



Protliorax alutaceous, without large punctures Species 6. 



Prothorax coarsely or conspicuously punctured. 



Posterior femora toothed or angularly dilated, and the inter- 

 mediate femora sometimes lobed (Nos. 13, 14), in J'f 



Species 7-lG. 

 Posterior and intermediate femora unarmed in both sexes. 



Antennae serrate 'u\ S Species 17-20. 



Antennae flabellate m S [Babsenis Pasc.]. Species 21. 



Elytra without opaque lateral patch in both sexes Species 22-24. 



1. — Disema tlioracica . 



Stafirn tlioracica Makl., Act. Soc. Fenn. vii, p. 155 (18G2) ( d ?)• 

 Disema tlioracica Makl., op. cit. x, p. 647 (1875). 



Hah. : Brazil, Rio de Janeiro {Fry), Discoberto del Antonio Velho, 

 in Prov. Minas Geraes {Surcliell : 16.x.'25, in Mas. Oxon.). 



Two females of this species are before me, the one captured by 

 Burchell in 1825 still in a fairly good state of preservation. D. tlioracica 

 is a larger and broader insect than D. inlateralis Pic ; the el3d;ra are 

 nigro-piceous, with the outer margins testaceous, the interstices 1, 3, 



* The two sexes known of D. appendiculata, ohsciira, subarmata, serraticornis, and Julvipes ; 

 females of the other species wanting. 



t Not definitely ascertained in D. olivacea, brasiliensis, and tortinianus, the hind legs wanting 

 in the specimens examined. 



