172 Mr. H. W. Bates on the Longicorn Coleoptera 



1. Hesycha NypJwndides, Pascoe. 

 Hesycha Nyphonoides, Pascoe, Trans. Ent. Soc. n. s. v. pt. 1. 

 //. parallelogrammica, depressa, obscure fusca cinereo-fulva varie- 

 gata ; elytris medio fascia undulata, obscura, cinereo-fulva. Long. 

 61-8 lin. J $ . 



Head dull brown ; forehead broad, sparingly punctured ; an- 

 tenniferous tubercles in the male produced on their inner side 

 into a stout pointed tooth. Antennae in the male nearly twice 

 the length of the body, with the apical joint greatly elongated ; 

 in the female about the length of the body, apical joint shorter 

 than the preceding; colour dull brown or blackish. Thorax 

 uneven above, sides with a short pointed tubercle ; dull brown, 

 speckled with black. Elytra slightly narrowed from base to 

 apex, shoulders slightly prominent and surmounted by an ob- 

 tuse shining tubercle; surface even, thickly but finely punc- 

 tured, dull brown, covered with dingy tawny confluent spots, 

 and crossed beyond the middle by a zigzag fascia of a little 

 paler hue. Body beneath and legs blackish or dull brown. 



Common on branches of dead trees at Ega. There are two 

 closely allied species in collections fi'om the interior of French 

 Guiana*. 



* Hesycha jaspidea, n. sp. H. Nyphonoidei simillima, robustior, maris 

 elytris postice magis angustatis et' fronte valde cornuta. Obscure 

 fusca; thoracis lateribus utrinque tuberis duobus obtusis armatis. 

 Elytra humeris prominentibus, basi rugoso-punctata et inscqualia 

 fusco-nigra, maculis sordide fulvis sparsis quarum tribus majoribus 

 medianis in fasciam abbreviatam conjunctis. Corpus subtus fulvo to- 

 mentosum. Antennae valde elongatse, articulis basi griseis. Long. 

 8 lin. <? . Hab. In Cayenna interiore (Dom. Bar). 



Hesycha liturata, n. sp. Minor, brunnea, elytris litura tenui obliqua 

 albicante. Caput fuscum, fronte punctata, tuberculis antenniferis 

 utroque sexu intus acutis. Antennae brunnese, maris corpore paulo 

 longiores. Thorax quadratus, lateribus tuberculo distincto subacuto, 

 supra brunneus vittis tribus nigris, lateribus cinerascentibus. Elytra 

 postice paulo angustata, apice oblique breviter truncata, humeris vix 

 productis, obtusis ; dorso punctata, brunneo et fulvo variegata, infra 

 humeros (cum prothoracis et pectoris lateribus) nigricantia, apud me- 

 dium litura tenui valde obliqua albicante. Corpus subtus et pedes 

 brunneo tomentosa. Long. 5-6 lin. S $ . Hab. In Cayenna (Dom. 

 Bar). 

 The following species belongs also to this genus, from its linear sub- 

 depressed form and the somewhat wide separation of the antennae at their 



Hesycha xylina, n. sp. Elongata, sordide brunnea ; elytris rugoso-punc- 

 tatis, fusco et griseo strigatis, humeris subuncinatis. Caput fuscum, 

 fronte grosse sparsim punctata, tuberculis antenniferis intus dente va- 

 lido curvato armatis( c? ). Antennae valde elongatae, brunneae, apice 

 pallidae, articulis (a tertio)basi testaceis, articulo 12™° acuto, curvato. 

 Thorax supra inaequalis, inermis, brunneus. Elytra valde elongata. 



