DISONYCHA. 309 



another more or less distinct depression; sides nearly straight, the anterior and posterior angles very 

 obliquely shaped; disk entirely impunctate, dark fulvous, shining; scutellum black; elytra scarcely 

 visibly punctured, black, with three narrow and very regular bright yellow transverse bands, of which 

 one occupies the space immediately below the base, the second at or directly below the middle, and the 

 third at a little distance from the apex ; all these bands extend to the sutural and lateral margin ; under- 

 side and the posterior femora black or piceous; legs flavous; apex of the last abdominal segment fulvous. 



Hab. Panama, Bugaba (Champion). 



" This elegantly marked species, of which a dozen specimens were obtained, has the 

 colour of D. erichsoni, Jac, as regards the elytra, but differs in the fulvous head and 

 thorax, as well as in the colour of the legs and antennae. The posterior femora are 

 sometimes fulvous. 



11. Disonycha trifasciata. (Tab. XVIII. figg. 14, 15.) 



Disonycha trifasciata, Clark, Journ. of Entom. ii. 1865, p. 401 \ 



Hab. Guatemala, Zapote, San Isidro, Teleman (Champion); Nicaragua, Chon- 

 tales (Janson); Costa Rica (Van Patten); Panama, Bugaba, David (Champion).— 

 Venezuela 1 . 



This pretty little species seems to be rather widely distributed in Central America, 

 although not hitherto recorded from that locality. It is easily recognized by the black 

 elytra, interrupted by three flavous bands, which do not quite extend to the sutural or 

 lateral margin. The spots of the thorax are frequently absent, and the legs in all the 

 specimens before me are entirely black, or with rufous base of the femora. A single 

 variety from San Isidro, which is also figured here, has two small spots on each elytron 

 instead of the black transverse bands. 



12. Disonycha nigrita. 



Below fulvous ; knees, tibia*, tarsi, and apex of the posterior femora black ; head and thorax fulvous, the latter 

 with a central rhomboidal black spot; elytra black, entirely impunctate. 



Length 3 lines. 



Head with a black spot at the base, impunctate, with the exception of a single puncture in front of each eye ; 

 antenna? rather slender, nearly half the length of the body, the intermediate joints somewhat incrassate, 

 black, the three basal joints fulvous below, fourth joint slightly longer than the third ; thorax about one 

 half broader than long, the posterior margin sinuate, the sides nearly straight, anterior angles oblique and 

 somewhat thickened, disk impunctate, with a central diamond-shaped black spot ; scutellum and elytra 

 black, entirely impunctate and shining. 



Bab. Guatemala, Pantaleon 1700 feet (Champion). 



Separated by the black and entirely impunctate elytra, and evidently allied to 

 J), dorsata, Har. A single specimen was obtained. 



13. Disonycha dimidiata. (Tab. XVIII. fig. 21.) 



Head, breast, tibise, tarsi, and basal joints of the antennas black ; thorax pale fulvous ; elytra impunctate 



basal half black, posterior half testaceous. 

 Length 3 lines. 



