BY THOMAS G. SLOAN f. 827 



Striae deeply impressed; protiiorax strongly rounded 



on sides M. convexus SL 



Elytra deeply 4-striate M. a<er Cast.* 



AiMBLYTELUS MARGINICOLLIS, 11. sp. 



Robust; head short, wide across occiput; prothorax broad, 

 wider across base(l-6 mm.) than apex(l'25 mm.), lateral border 

 very wide, flat; elytra convex, crenulate-striate, interstices a little 

 convex, third impunctate. Testaceous; margins of prothorax, 

 legs, and basal joint of antennae yellowish; elytra with a black 

 mark on each, bounded externally by seventh stria, reaching 

 apical margin, extending nearly to humeral angles on sixth and 

 seventh interstices, becoming wider posteriorly and coverings 

 interstices 2-7 on apical declivity; first interstice reddish; the 

 rest of tiie testaceous parts of the elytnt yellovver than head and 

 prothorax. 



Head wide(l-3mm. across eyes); frontal impressions deep, 

 wide, parallel; a lateral channel extending forward from above 

 eye to base of antenna; space between each frontal impression 

 and lateral channel narrow, convex; eyes large, convex, inclosed 

 at base; postocular part of orbits projecting sharply, but a little 

 obliquely, from head. Prothorax widely transverse (1'15 x 1-8 

 mm.), broadest about middle; sides rounded, shortly and sharply 

 sinuate just before base; apex truncate between anterior angles, 

 these a little advanced, widely rounded; basal angles rectangular, 

 acute; median line lightly impressed; a well-marked impression 

 on each side of base: posterior marginal seta on edge of border 

 just before widest part of prothorax. Elytra ovate(4*25 x 2-7nira.), 

 lightly convex; apical curve lightly sinuate on each side at apex 

 of ninth interstice; first stria lightly out-turned in a faintly 

 marked course near base and uniting with second at point of 



*From a specimen ( (J" ) in my Collection (received from Mr. A. M. Lea, 

 ticketed "Tweed River, N.S.W.") in which the elytra have only four striis^ 

 the fourth as deep as the others on the disc, but becoming obsolete on the 

 apical declivity. This specimen has the prothorax broader than long. 

 (3"7 X 4mm.). 



