1^ the Amazon Valley. 15 



of spine or tubercle; above dark ehestnut-oolour^ silky, sides 

 and a central vitta continuous with that of the head yellowish. 

 Scutelluin ocbreous. Elytra in both sexes very slightly narrowed 

 to three-fourths of their length, then abruptly narrowed in a cur\ed 

 line to the apex, which is subsinuate-truneste; surface punc- 

 tured, except near the apex, dark brownish diestnat ornamented 

 with marks of a yellowish-ashy hue ; there is a small spot on 

 each Slide of the scutellum, an angulated streak under each 

 shoulder, and a large common spot a little before the middle 

 extending along the sature both tofrards the hue and apex, and 

 connected with an angvUted ttreric which toudies the side on 

 each elytron ; this patch has a small blackish speck in ita mid- 

 dle over the suture : besides these marks, the apex has on each 

 side a flexuous streak enclosing a tooth -shaped spot of the 

 ground-colour of the elytron. Body beneath hoary white. Legs 

 reddish, with ashy pile ; apex of thighs, tibise, and tarsi black. 



<S Terminal abdominal segment feebly emarginated at the 

 apex. 



$ Ovipositor greatly elongated and exserted beyond its sheath, 

 apical dorsal plate of its sheath pointed, ventral deeply cleft. 



I met with this elegantly marked insect only at Obydos, on 

 the Guiana side of the Lower Amazons, where it was abundant, 

 in March IH59. It has been found also in the interior of 

 Cayenne by M . Bar, and exists in French collections under the 

 names of Eutryparmi JigurMtm and E. eiegam, the former of 

 which I have adopted. 



2. Tormunu mnii, n. ip. 



T. nl)1nn^!i, conrexiiisculnfi, niara caitangM, capite thoraeeque rkta 

 cent rail cH-hmcca : rlytris litnra bmneimli, fascia obliqua pooe 

 medium, linoa arcuata laterali prope apicem, suturaque postioe 

 cincreo-ochraceis. Long. 3|-5| lin. rf $ • 



Head dark brown, sides of forehead and cheeks each with a 

 yellowish streak, vertex with a broad central yellowish stripe. 

 Antenna' slender, reddish, tips of joints dusky, bases of third 

 to sixth joints pale, lliorax not much broader than the head, 

 and with a slight protuberance on each side about the middle, 

 but no trace of spine or tubercle ; above dark chestnut, silky, 

 sides whitish, the middle traversed by a yellowish stripe con- 

 tinuous with that of the head. Scutellum ochreous. Elytra in 

 both sexes gradually narrowed from base to apex, the latter 

 sinuate-truncate; surface punctured, except towards the apex, 

 dark brownish chestnut ornamented with yellowish- ashy marks ; 

 there is a small spot on each side of the scutellum, a patch be- 

 neath and a cuned line above the shoulder, an oblique stripe 

 beginning about the middle of each side, and extending to the 



