212 Journal New York Entomological Society. [Voi. xii. 



margin not visible from above, and the surface not impressed across 

 the middle. 



Paraptorthodius, new genus. 



Headdeflexed; eyes lateral, convex, prominent; mandibles slightly arcuate, acute, 

 not dentate. Last joint of maxillary palpi slightly widening to apex, obliquely truncate, 

 last joint of labial palpi oval. Antennae twelve jointed, second and third joint each 

 shorter than first, joints four to eleven, each with two oval, leaf like appendages at 

 base, twelfth with one similar appendage, but closely soldered to the entire length of 

 the joint, each of these joints except the last have in addition a short tooth-like proc- 

 ess on the underside at middle, of the same texture as the leaf-like appendages. Side 

 margin of thorax slightly thickened, prothoracic epipleuras parallel, distinct. Pro- 

 thorax beneath broadly deeply emarginate in front. 



Type. — Paraptorthodius niirabilis. 



The twelve-jointed antennae brings this genus near] the Central- 

 American Ptortliodius, from which it differs by the deflexed head, 

 mandibles slightly arcuate and the structure of the antennae. The 

 head in the single specimen is exserted but the excavation of the 

 thorax beneath is undoubtedly intended for the reception of the head. 



Mr. Gorham has transferred Ptorthodius, Eiiryopa, and our Mesti- 

 nocerini, to which the first two genera are allied, to the Lymexylidae. 

 While he may be correct in this, yet I think it is not advisable without 

 a thorough critical study of both families to make such a change. 

 Tytthonyx included by Leconte in this tribe is not mentioned, it is a 

 disturbing element there and may have to be removed. 



Paraptorthodius mirabilis, new species. 



Yellowish, elytra abbreviated, antennre short, twelve jointed, joints two and three 

 short, four to eleven on each side of base with a leaf-like appendage, twelfth com- 

 pressed, leaf-like, and each joint, except the last, in addition on the underside at 

 middle, a tooth-like process of the same texture as the appendages. Head without 

 the eyes quadrate, coarsely and densely punctured, impressed between the antennse ; 

 eyes large, rounded, prominent; antennae twelve jointed, first joint stout, as long as 

 the next two, second nearly as stout as the first one, but shorter, broader at apex than 

 at base, third shorter and narrower, four to ten subequal among themselves, eleventh 

 a little longer than the tenth, twelfth as long as the tenth, joints four to eleven with 

 a leaf-like" appendage on each side of base, twelfth compressed, leaf-like and each 

 of these joints except the twelfth has in addition on the underside at middle a tooth- 

 like process. Thorax as long as broad, apex slightly arcuate and feebly widening to 

 about basal fourth, then suddenly obliquely narrowing to base which is hardly wider 

 than the scutellum, disk with a broad impression near base, surface not quite as 

 densely punctured as the thorax. Scutellum nearly as wide as the thorax at base, 

 truncate at apex and coarsely punctate. Elytra shorter than half of the length of the 

 breast and abdomen, at apex rounded and slightly narrower than at base, somewhat 



