June, 1920.] XlCOLAY AND W'kISS : ThE GrOUP TrACHES. 145 



Taphrocerus agriloides Crotch, 73-75. Plate VI (Fig. C). 



(Original description.) 



" Subclongate, aeneous, head very sparingly punctate, with an impressed 

 line on the front ; thorax alutaceous, transverse, sides straight, coarsely and 

 sparsely punctate, base with a rounded median lobe ; elytra deeply punctate 

 striate, the punctures decreasing towards the apex. L. 14, Texas (Bclfrage). 



"In appearance very like Agrilis putillus." 



Superficially this species is very close to schacffcri and undoubt- 

 edly mixed with it in many collections as it occurs in the same locality 

 but has a more extended range, specimens having been taken as far 

 north as Georgia. It will be necessary to add the following to the 

 above description in order to clearly define this species. Coppery, 

 moderately shining, elongate, elytra gradually narrowing from about 

 the apical half, more finely punctate than schacffcri, tips distinctly 

 serrulate, umbone not noticeable, fovea at base of elytra smaller and 

 less distinct. Thorax widest at middle evenly rounded when viewed 

 from above; a more or less distinct fovea on each side near base. 

 Front of head much more feebly iinpressed, alutaceous. Ventral sur- 

 face reneous, finely and moderately punctate, pubescence sparse, ar- 

 ranged in transverse rows of short, white hairs on the abdomen. We 

 can not see that this species resembles Agrilis putillus in any very 

 striking point. Length, 3.5 mm. Width, 0.75-1 mm. 



Localities. — Coden, June 9 ; Mobile, April 1 1 ; Delchainps, August 

 30, on rushes in salt marsh (Loding) ; Alabama. Georgia. Texas. 



This species is at once separated from schacffcri by the thorax 

 being widest at centre, not impressed at base and without carina in- 

 side the basal angle. The head is alutaceous, more feebly impressed. 

 Elytral punctuation is finer with the tips strongly serrulate and the 

 body is more elongate and parallel. 



Taphrocerus laevicollis Le Conte, 7S-403, Plate VI (Fig. D). 



(Original description.) 



" Very small, slender, convex, narrower behind, black-bronzed, shining. 

 Head and prothorax nearly smooth, the former large, longitudinally impressed ; 

 the latter with very deep oblique impressions towards the sides, which are 

 nearly straight and subparalltl. Elytra uneven with vague rows of feebly im- 

 pressed striae. Length 2.5 mm.; .10 inch. 



