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



Acmaeodera rubescens, new species. 



Nearly of the form of geinina, piceous, thorax and head very faintly bronzed, 

 body beneath with scale-like white hairs, sparsely placed, the elytral markings are an 

 exact reproduction of those of opinabilis but in addition the apex is bordered with 

 red. Antenna; with the fifth joint much wider than the fourth. Front convex, 

 coarsely and closely punctate. Thorax twice as wide as long, widest behind the 

 middle, arcuate at sides, narrowing to apex, slightly sinuate behind the middle, hind 

 angles rounded, lateral margin not visible from above, disk slightly depressed, a faint 

 fovea at middle and one on each side near hind angles, surface very coarsely, cribrately 

 punctured, opaque very slightly bronzed, a small yellow spot on each side near the 

 hind angles. Elytra narrower at base than the thorax at middle, sides slightly nar- 

 rowing to the middle then arcuately narrowing to apex, margin serrate, stri« with 

 coarse deep closely placed punctures, intervals narrower than the strise, maculation 

 yellow exactly like opinabilis with the apex bordered with red. Presternum very 

 coarsely punctate, anterior margin slightly sinuate, nearly attaining the anterior angles. 

 Metasternum and abdomen coarsely punctate each puncture bearing a scale-like white 

 hair. Last ventral segment with double margin caused by a few confluent punctures. 

 Length, 6 mm. 



Santa Rosa, Lower California. One specimen in the Museum of 

 the Brooklyn Institute from Mr. G. Beyer. 



This species has to be placed near gemina and insignis. 



Mastogenius reticulaticollis, new species. 



Elongate oval, black, elytra dark blue, thoracic sculpture reticulate. Head con- 

 vex, with a slight median impression, moderately coarsely punctured. Thorax nearly 

 twice wider than long, sides slightly arcuate, nearly parallel behind, base truncate, 

 carina at sides obliterated at apex, gradually narrowing towards the side margin at 

 base, surface distinctly reticulate, base slightly transversely impressed with a row of 

 punctures. Elytra as broad as the thorax at base, sides gradually narrowing to apex, 

 base acutely and strongly impressed, surface shining, dark blue, finely punctured, a 

 little coarser at sides, punctures somewhat elongate. Beneath black, prosternum, 

 metasternum and last ventral segment coarsely punctured, the rest of abdomen more 

 sparsely and finely. Length, 2.5-3.5 '^^"i. 



Five specimens, Brownsville, Texas, two in the collection of the 

 Museum of the Brooklyn Institute, two in coll. Dietz, all four collec- 

 ted by the late Ottomar Dietz, and one in the Nat. Museum in Wash- 

 ington collected by C. H. T. Townsend, this latter one is the largest. 

 Distinguished from subcyaneiis by the form and sculpture of prothorax, 

 the feeble frontal impression and the entire black legs and antennse. 



Type. — No. 8 161, U. S. National Museum. 



Agrilus doUii, new species. 



Form, size, color and markings of lecontei, but a little more robust, each elytron 

 at apex emarginate. Antennae reaching to about the middle of the thorax, piceous 

 with aeneous lustre, serrate from the fifth joint ; head slightly convex, rather broadly 



