SEMNORRHYNCHUS. 629 
small, prominent. Elytra a little wider than the prothorax, parallel at the base; coarsely seriate- 
punctate, the interstices densely punctulate, 1 (sutural), 3, 5, and 7 more or less raised, 3 swollen and 
fasciculate below the base. Beneath thickly punctate. Mesosternum very broad and prominent, arcuate- 
emarginate. Legs very short and stout; femora feebly unidentate ; tibia broad ; tarsal claws small. 
Var.? Smaller; the blackish scales predominating on the prothorax and on the elytra mainly concentrated 
into a transverse patch at the base, the rest of the elytral surface slightly mottled with white, the sutural 
interstice scarcely raised. 
Length 23-43, breadth 13-2 millim. (¢ 2.) 
Hab. Mexico, Tapachula (Hége); Britisa Honpuras, Rio Sarstoon (Blancaneauz) ; 
GuaTEMALA, Cerro Zunil, Capetillo, Chacoj (Champion) ; Panama, David (Champion). 
Nine specimens, the two from the most northern localities belonging to the larger 
form. ‘This variable insect has the rostrum straighter and more widened towards the 
tip than in S. pictus, Faust. The very short sete are condensed into an interrupted 
line on each of the alternate elytral interstices, as well as along the suture. The 
sculpture of the prothorax is variable. 
2. Semnorrhynchus tristis, sp.n. (Tab. XXXI. figg. 2, 2a.) 
Very like a small example of S. planirostris, but with the vestiture of the upper surface dark brown, the 
elytra with a common, narrow, sinuous, white fascia (extending outwards to the third row of punctures) 
beyond the middle and an oblong black spot on the third interstice below the base ; the alternate elytral 
interstices raised, and, like the suture, set with a row of very short, erect, blackish, setiform scales ; the 
femora each with a minute tooth. 
Length 35, breadth 12 millim. (9.) 
Hab. Mexico, Jalapa (Hodge). 
One specimen. 
§ 2. Elytra with each interstice set with short erect scales. 
3. Semnorrhynchus fulvopictus, sp.n. (Tab. XXXI. figg. 3, 3 a.) 
Oblong-ovate, shining, nigro-piceous, the antenne ferruginous; sparsely clothed with brown scales, with a 
few black and fulvous scales intermixed, the black scales on the elytra sometimes condensed into a small 
spot on the third interstice below the base, and the fulvous ones clustered into irregular markings near 
the humeri and various coalescent spots on the apical declivity ; the upper surface also set somewhat 
thickly with very short erect sete ; the head with fulvous scales, the rest of the vestiture sparse, the 
legs setulose. Head rugosely punctate, the eyes distant ; rostrum short, stout, widened at the base and 
apex, almost straight, sparsely, rather coarsely punctate, smoother in the 2, the antenne inserted behind 
the middle, joint 2 shorter than 1, 3-7 transverse, widening outwards, the club ovate. Prothorax 
broader than long, rounded at the sides anteriorly, narrowed and strongly constricted in front ; coarsely, 
rugosely punctate. Scutellum small, convex. LElytra a little wider than the prothorax, rather short, 
subparallel in their basal half, the humeri obtuse ; with rows of coarse, subquadrate punctures, separated 
by narrow, rugulose, feebly convex interstices. Beneath alutaceous, sparsely, coarsely punctate, the 
ventral segments 3 and 4 almost impunctate. Mesosternum very prominent, raised, subtriangularly 
emarginate. Legs short and stout; femora sharply dentate, the anterior pair very stout, and sometimes 
with a small denticle exterior to the larger tooth. 
Length 3-34, breadth 13-13 millim. (¢ @.) 
Hab. Panama, Bugaba (Champion). 
