of t lie Amazon Valley. 21 



dorsal carina? ; the colour is silky purplish brown, with (on each 

 elytron) a curved milk-white streak from the shoulders to near 

 the apex bending towards the suture, and two obliquely transverse 

 similar streaks near the apex, all enclosing patches of a light-grey 

 colour and shorter milk-white streaks, the anterior curved lateral 

 lines being connected across the suture by a thin straight line 

 of the same hue. Body beneath tawny ashy. Legs grey, with 

 dusky rings, 



(S Middle of breast and coxae thickly clothed with brown 

 pubescence. Terminal abdominal segment with ventral and 

 dorsal plates deeply notched, the angles of the ventral notch 

 acute, of the dorsal obtuse. Fore and middle tarsi dilated and 

 fringed with hairs. 



$ Breast, coxae, and tarsi simple and naked. Ovipositor pro- 

 jecting the length of a line beyond the tips of the elytra ; dorsal 

 plate broad and obtuse at the tip. 



This elegant and rare species occurred only at Ega and S. 

 Paulo, Up|> It has since been found also in the 



interior of 1 la by .M. Bar*. 



Group Cohbothehue. 



Genus Eutrypanus (Dej. Cat.), Thomson. 



Tboouon, Clasnf. des C^rainbyc. p. 13. 



Char, emend. Body oblong or subelongate, above somewhat 

 plane. Thorax with stout lateral spines or tubercles placed near 

 the middle of the sides, above tubcrcled or convex. Elytra 

 much broader than the thorax, their deflcxed sides broad and 

 vertical, and separated from the dorsal surface by a sharp keel 

 proceeding from the shoulder ; surface furnished with setae, 

 apices truncated. Prostemum narrow; mesosternum broad, 

 nearly square. Terminal abdominal segment in the males more 



* The following common South- Brazilian insect bekmgs to the geavs 

 Xjflergates : — 



Xylergates aspfr, n. sp. Oblongus, supra conrexiusculut, poatiee ro- 

 tundatim attcuiuitua, cinerco-fulvos, scriceo-bruoneo plagiatns. Caput 

 sordidc fulvo-cinerenm. Antennc roboaUe, breviaacWue, dnacae, arti- 

 culis apicc fuliginosig. Thorax supra inaequalis, tritubercidatua, fulro> 

 rinereus, disco plaga obscvim brunnea, tuberculis lateralibus magnis 

 actttis. Elytra oblonga, postice ( <? $ ) rotundato-attentiata, breviter 

 oblique tnincata, supra |)unctnta, utrinque quadricostata, costia ante 

 apicem abbrcviatis, tubercula nigra hispida gerentibus ; fulvo-dnerea, 

 plaga indistiucta scutcllah alteriaqne daabiu spud medium lateralibus 

 angulatiii sericeo-brunneis. Corpus sulAni nilTo-cincreum. Pedes 

 cinerci, fusco annulati. Maris pectore nudo, segmcnto ultimo abdo« 

 minali fortiter inciso, tarsis anticis intennediisque dilatatis, nee ciliatis. 

 Foemins stylo modice elongate, tegmento ultimo dorsali subacuto. 

 Hab. in Brasilia meridionali. 



