EUDACTYLUS.— ACHRESTUS. 339 



4. Eudactylus ebnratus. (Tab. XV. fig. 3.) 



Moderately elongate, narrow, subopaque, the elytra slightly shining ; the head piceous or reddish-brown, pale 

 testaceous in front ; the prothorax piceous or pitchy-black, with the hind angles entirely testaceous ; 

 the scutellum testaceous ; the elytra piceous or black, with the base on either side of the scutellum, and a 

 large oblique patch extending inwards from a little below the humeri to the third stria, testaceous, each 

 elytron with five raised ivory-white spots — three, small, placed longitudinally on the disc (one at the base 

 one a little below it, and one slightly before the middle), one, larger, near the margin, a little beyond 

 the middle, and one, oblong, on the outer part of the disc near the apex, — the anterior third of the 

 epipleurse also ivory-white ; the antennae pitchy-black, with the four or five basal joints pale testaceous ; 

 the legs entirely whitish ; the under surface varying in colour from testaceous to brownish-piceous ; the 

 head, prothorax, and the body beneath clothed with short, fine, decumbent, cinereous pubescence, the 

 prothorax with five fuscous marks (a broad, elongate patch on either side of the disc behind, a small spot 

 in front of it, and a large spot on the anterior part of the disc in the middle) ; the elytra with the suture 

 rather broadly, the sides and apex, and also the light-coloured parts, clothed with pallid pubescence, the 

 rest of their surface fusco-pubescent. Head densely, finely punctate, sulcate in the middle between the 

 eyes and transversely depressed in front ; the frontal carina moderately prominent, flexed downwards in 

 the middle, rounded anteriorly ; antennae extending very little beyond the humeri, slightly shorter in the 

 female; joints 2 and 3 short, equal, 4-11 dilated and serrate, becoming wider outwards, 4 as long as 2 

 and 3 united, much longer than 5, 7-10 about as broad as long. Prothorax much longer than broad, 

 convex, the sides feebly rounded and slightly converging anteriorly aud sinuate behind; the hind angles 

 strongly produced, divergent, acute, very finely and obsoletely carinate externally ; the surface densely, 

 finely punctate, shallowly canaliculate down the middle, the channel replaced at the base by a short fine 

 carina. Elytra moderately elongate, gradually narrowing from about the basal third, the apices finely 

 mucronate and slightly dehiscent; deeply and rather coarsely punctate-striate, the striae interrupted by the 

 raised ivory-white spots, the latter being very finely punctured ; the interstices convex, closely and very 

 finely punctate. Beneath thickly, very finely punctate, the punctures on the prosternum and propleurae 

 coarser than on the other parts. Posterior coxal plates narrow, very gradually widening inwards. 



Length Tj-Tf, breadth 2 millim. ( J $ .) 



Hab. Panama, Bugaba {Champion). 



Four specimens. Allied to E. alboguttatus, Cand., from Cayenne, but narrower and 

 more elongate, and very differently coloured. The elytra have five raised ivory-white 

 spots on each elytron, a character not possessed by any other Elaterid known to me. 

 These specimens were found singly, at long intervals, on the borders of the forest, 

 sunning themselves upon leaves. 



ACHEESTUS. 



Anepsius, Candeze, Monogr. Elat. ii. p. 156 (1859) (nee Leconte). 

 Achrestus, Candeze, Col. Hefte, v. p. 122 (1869). 



This genus contains five described species, all from Tropical South America, and 

 others, unnamed as yet, exist in collections. The two from Nicaragua now added 

 differ from those described by Candeze in having the antennas strongly flabellate in the 

 male sex. 



Black, the prothorax with a broad submarginal vitta of fulvous hairs, extending 

 to the head and to the base of the elytra ; prothorax as long as broad, opaque, 

 not foveate at the sides fuhovittatus. 



2X2 



