PERIDINETUS. 173 
the middle of the prothorax, the humeri, the apical third or more of the suture, a sharply-defined oblong 
oblique patch on the outer part of each elytron near the apex, and a broad space down the middle of the 
abdomen ; the tarsi with ochreous hairs beneath. Head sparsely, finely punctate, deeply suleate between 
the eyes; rostrum very stout, feebly arcuate, sparsely, minutely punctate (except along the middle), 
smoother in the 2; joints 1 and 2 of the funiculus elongate, equal in length; antennal club long, 
acuminate-ovate. Prothorax conical, closely, finely punctate, with indications of a smooth raised median 
line. Elytra much wider than the prothorax, elongate-triangular ; with rows of oblong punctures 
placed in fine strie, the interstices closely punctate, flat, 2 and 4 narrowly costate at the apex. Meta- 
sternum and abdomen, except at the sides, very sparsely, finely punctate; ventral segment 1 broadly 
depressed down the middle in the ¢ ; metasternum binodose between the middle coxa, its anterior face 
vertical. 
Length 62-93, breadth 24-43 millim. (¢ 2.) 
Hab. Panama, Bugaba, Volcan de Chiriqui (Champion). 
A common insect in the forest-region of Chiriqui. Nearly related to P. cretaceus, 
but wanting the chalky-white patches above and beneath, the vestiture close, fine, and 
uniform, cinereous or white, the elytra with the apical third or more of the suture 
and an oblique lateral patch near the tip bare. The metasternum is similarly formed 
in the two species. P. canus bears a superficial resemblance to Ambates melanops and 
inhabits the same region. 
2. Peridinetus cretaceus. (Tab. X. figg. 15, 15a, 3.) 
Peridinetus cretaceus, Pasc. Ann. & Mag. Nat. Hist. (5) v. p. 181 (1880) '; Jekel, Ann. Soc. Ent. 
Belg. xxvi. p. 86°. 
Peridinetus luctuosus, Chevr. Ann. Soc. Ent. Belg. xxvi. p. 82 (1882) °. 
Hab. Nicaraaua (Sallé?), Chontales!? (Belt, Janson); Costa Rica, Guaitil de 
Pirris, San Carlos (Biolley), Azahar de Cartago, Savanillas de Pirris (Underwood), 
Cariblanco (Lankester), Caché (Rogers).—Co.omsia, Buenaventura (coll. Fry). 
The dense chalky-white patches in this insect are six in number :—one on each side 
of the prothorax, extending downward over the whole of the flanks; one at about the 
middle of each elytron, oblique, extending downward on to the lateral portion of 
the metasternum; and one on each elytron at the apex. The male has the first two 
ventral segments very broadly excavate down the middle. ‘The first joint of the 
funiculus is longer than the second. The metasternum is somewhat protuberant 
between the middle coxe, its anterior face vertical. 
3. Peridinetus distinctus. (Tab. X. fig. 16, ¢.) 
Peridinetus distinctus, Pasc. Ann. & Mag. Nat. Hist. (5) vi. p. 180’; Chevr. Ann. Soc. Ent. Belg. 
 xxvi. p. 827. 
Peridinetus linnei, Jekel, in litt.’. 
Peridinetus niveopictus, Chevr. in litt.*. 
Hab. Mexico!?, Santacomapan, Toxpam (Sallé), Teapa (Hoge, H. H. Smith); 
British Honpuras, Rio Sarstoon (Blancaneaux); GuaTeMaLa, San Geronimo, Panima, 
