AGRIOTES. 515 



Elytra two and three-fourths the length of the prothorax, slightly rounded at the sides, narrowing from a 

 little below the base, the apices narrow; finely and shallowly punctate- striate, the striae deeply impressed 

 on the basal declivity, the interstices flat and closely, finely punctate. Beneath densely, the presternum 

 and propleurae rather sparsely, punctured. Hind coxal plates a little widened in their inner third. 

 Length lli, breadth 3 millim. 



Hab. Costa Eica (Van Patten). 



One example, probably a female. Larger and more elongate than A. hilaris; the 

 third joint of the antennae longer ; the elytra more attenuate, more shallowly striate, 

 and with alternate lines of light and dark pubescence, these becoming well defined 

 towards the sides ; the thorax more sparsely punctured, more deeply canaliculate 

 behind, and with much more sharply carinate hind angles. From A lineipennis, which 

 has somewhat similarly-coloured elytral pubescence, the present insect may be known 

 by the long, acute, divergent hind angles of the thorax, the surface of which is much 

 more sparsely punctured, and the more acuminate elytra. 



2. AgrioteS lineipennis. (Tab. XXII. figg. 18, 8 ; 18 a, antenna.) 

 Agriotes lineipennis, Cand. Monogr. Elat. iv. p. 371 l . 



Hab. Mexico (coll. Janson, ex Laferte x ). 



Unique in the Laferte collection. Closely allied to A. bicolor, but differing from it 

 in the relatively longer third joint of the antennas, and the much more densely punc- 

 tured thorax, which is also less deeply canaliculate behind, and has the base less deeply 

 incised ; also in having blackish-brown pubescence on the alternate interstices of the 

 elytra, that on the rest of the surface being yellowish. The third joint of the antennas 

 is as long as, but narrower than, the fourth. 



3. Agriotes hilaris. (Tab. xxii. fig. 19.) 



Agriotes hilaris, Cand. Monogr. Elat. iv. p. 369 \ 



Hab. Mexico (coll. Janson, ex Laferte 1 ), Tepansacualco in Oaxaca (Salle) ; Guate- 

 mala, Purula in Vera Paz (Champion). 



Found in plenty at Purula. Varies in colour from black to brown ; the thorax is 

 rufous in the Mexican specimens, but in many of those from Purula, where also the 

 typical form occurred, it has a large black patch on the disc, or is entirely black. The 

 elytra have the suture and a narrow line on the outer part of the disc— sometimes 

 abbreviated or obsolete— whitish-pubescent, the pubescence on the other parts being 

 fuscous or blackish-brown. The pubescence on the under surface is cinereous or 

 yellowish-cinereous. Some of the Guatemalan examples have the thorax a little more 

 elongate and more coarsely punctured than the Mexican types. 



A Mexican specimen is figured. 



3TJ2 



