of the Amazon Valley, 49 



of the elytra are very long and acute, the smooth posterior carinae 

 of the wing-eases continuing to their tips. 



Found at Para, on dead boughs in the forest. It has also 

 been found by M. Bar in the interior of French Guiana, speci- 

 mens collected by that gentleman having been sent to me from 

 Paris under the MS. name of P. ruficollis. 



4. Probatius apicalis, n. sp. 

 P. oblongo-ovatus, fusco-niger, sordide ochraceo canoque variegatus; 

 thorace ochraceo nebuloso, medio fusco bivittato : elytris postice 

 modice attenuatis, apice transverse sinuato-truncatis, angulis ex- 

 temis longe spinosis, dorse punctis setiferis in striis dispositis, 

 dimidio basali maculaque apicali ochraceis nigro conspersis, fascia 

 lata pone medium fusco-nigra lineolis canis variegata : antennis 

 fusco-nigris, infra dense setosis, articulo quarto annulo lato pallido. 

 Long. ^ lin. c? ? . 



Head dingy ochraceous ; vertex with two divergent blackish 

 vittse. Antennae black ; basal joint dingy rufous, second and 

 base of third joints hoary, basal half of fourth whitish ; they are 

 furnished with long setae, the first joint being fringed beneath 

 with them. Thorax dingy ochraceous, partly lighter and partly 

 darker in hue, the centre having two nearly parallel, distinct, 

 dark-brown vittae ; the lateral spines are large, conical, simply 

 acute, and not prolonged at their points. Elytra gradually and 

 moderately narrowed to their tips, which latter are transversely 

 sinuate-truncate, the sutural angle of the truncature being ad- 

 vanced but obtuse, the external angle prolonged into a stout 

 spine ; the posterior carina, which in P. partitus is very long, is 

 here reduced to a faint elevation close to the tip of each elytron, 

 and the sutural stria is not strongly impressed ; the surface has 

 many rows of setiferous punctures; the basal half is dingy 

 ochraceous, much speckled with black ; the apical part has an 

 ochraceous patch neatly limited on its anterior edge, and varied 

 with dusky points, the extreme apex near the suture having a 

 smaller opake ochreous spot ; the rest of the elytra is dull black- 

 ish, which colour forms a broad fascia, varied only by minute 

 grey linear specks, arranged in lines. Body beneath and legs 

 dingy ashy ; tarsi pale testaceous ; apical segment of abdomen 

 black ; ventral plate obtuse, dorsal plate truncate and bidentate 

 in both sexes. 



This was rather a common insect at Ega, on branches of dead 

 trees in the forest. 



5. Probatius ramulorum, n. sp. 



P. ellipticus, fusco-niger, fulvo-ochraceo variegatus : thorace dorso 

 nigro, lineis duabus ochraceis antice convergentibus : elytris fusco- 

 nigris, maculis ochraceis conspersis et fasciatis, apice oblique trmi- 



Ann. ^ Mag. N. Hist. Ser. 3. Vol. xiii. 4 



