338 SERB1CORNIA. 



Head, prothorax, and elytra flavous, the prothorax with a broad median vitta, 



and the elytra with a little more than the apical half, black partitus. 



Surface subopaque. thickly pubescent; elytra each with five raised ivory-white 



spots; size small ; • • eburatus. 



1. Eudactylus boucardi. 



Eudactylus boucardi, Salle, Rev. et Mag. Zool. 1873, p. 16, t. 9. figg. 5, 5ft 1 . 

 Hab. Mexico, Chinantla in Oaxaca (Boucard l ). 



2. Eudactylus grandini. (Tab. XV. fig. 1.) 



Eudactylus grandinii, Candeze, Elat. Nouv. i. p. 23 (1864) \ 

 Hab. Mexico l ; Nicaragua, Chontales (E. M. Janson). 



The type of this species is contained in the Janson collection, and a second example 

 was found by the late E. M. Janson at Chontales. This insect is closely allied to 

 E. boucardi, but differs from it in having the sutural and marginal stripes of the elytra 

 obliterated before the middle, the interstices more sparsely punctured, and the apices 

 acute. 



The upper surface is sparsely clothed with short fine decumbent pubescence, this 

 being rubbed off in the type. E. castus, Jans., from Ecuador, is another allied form. 



3. Eudactylus partitus. (Tab. XV. fig. 5.) 



Elongate, broad, shining ; flavous, the eyes, a very broad median vitta on the prothorax, narrowing a little 

 behind, the scutellum, the cavity surrounding it, and rather more than the apical half of the elytra, deep 

 black; the antennae black, with the tip of the apical joint ferruginous ; the legs black, with the knees, 

 the coxa?, and the tips of the tarsi more or less testaceous ; the under surface black, the propleurse in 

 great part, and the ventral segments at the sides, flavous ; the surface sparsely clothed with short fine 

 pubescence, which partakes of the ground-colour. Head thickly, moderately finely punctate, triangularly 

 flattened in front, the frontal carina prominent, rounded anteriorly ; antenna? stout, short, joint 3 a little 

 longer than 2, 4 about three times the length of 3. Prothorax longer than broad, longitudinally convex, 

 a little rounded at the sides in front ; the hind angles greatly produced, strongly divergent, carinate 

 above ; the surface thickly, moderately finely punctate, and with a strongly raised, smooth, stout, oblong 

 elevation at the middle of the basal declivity, preceded by a faint median groove. Scutellum rather 

 coarsely punctured. Elytra broad, about two and one-half times the length of the prothorax, explanate 

 at the sides a little below the base, and rapidly narrowing thence to the apex, the base obliquely cut off 

 on either side, the apices sharp and dehiscent ; finely punctate-striate, the stria? very deeply impressed 

 beyond the middle ; the interstices strongly convex, becoming flatter on the disc towards the base, thickly, 

 very finely punctate. Beneath closely and very finely, the prosternum and propleura? sparsely and more 

 coarsely, punctate. 



Length 17|, breadth 51 millim. 



Hab. Nicaeagua (E. M. Janson). 



One specimen in the Janson collection, probably a female. Allied to E. dimidiatus, 

 Cand., from Choco, Colombia; but much larger, the front not black, the thorax longer 

 and more parallel, the elytra with more than the apical half black, the interstices not 

 rugosely punctured. 



