152 ENTOMOLOGICAL NEWS. [June, '19 



Acmaeodera sinuata n. sp. (PI. VII, fig. 1). 



Form moderately depressed, bronzed, clothed with rather long erect 

 hair which is black on the disc of elytra, apex of pronotum, and base 

 of head, white on anterior part of head, basal part of pronotum, and 

 sides of elytra, thorax without yellow side markings, each elytron with 

 a broad yellow lateral band, somewhat roseate on inner margin, com- 

 mencing at the humeri, at first as a narrow marginal band, then sud- 

 denly broadening and continuing as such with a sinuate inner border 

 to near the apex. 



Head rather densely, coarsely punctured and sulcate, clypeus broadly 

 and moderately deeply emarginate ; thorax twice as wide as long, 

 apex slightly bisinuate, base truncate, sides slightly arcuate, broadest 

 one-third distance in front of base, and narrowed at apex, margin 

 narrow, only partly visible from above, surface somewhat densely and 

 coarsely punctured, a slight median basal impression and oblique 

 lateral. 



Elytra as wide at base as the thorax, sides subparallel from base 

 to beyond the middle, thence gradually narrowed to apex, margin 

 serrate posteriorly, disc convex, punctato-striate, punctures moderately 

 coarse, intervals with single row of punctures somewhat less than half 

 as prominent as those of striae. 



Body beneath bronzed, coarsely and closely punctured over thorax, 

 rather finely and sparsely on abdomen, moderately clothed with rather 

 long white hair, the anterior prosternal margin sinuate, the last ventral 

 bluntly rounded and without carina. 



Length 9 mm., breadth 3.25 mm. 



This very distinct species belongs in the emarginate group 

 as defined by both Horn^ and Fall,'^ though some specimens 

 show a tendency toward having a trisinuate prosternal margin. 

 The facies of the species is also somewhat like that of A. 

 jocosa Fall in the sinuate group and the markings suggestive 

 of those given in the description of A. horni Fall. It how- 

 ever belongs near A. prorsa Fall, but differs from that as well 

 as from A. horni Fall by lacking the broadly dilated prothorax 

 and cuneate form. Its markings will enable it to be readily 

 separated from all of our other species. The markings are 

 not constant, though, for the yellow band may have its inner 

 margin almost straight, as shown in Fig. 2, or be broken, form- 



3 "Revision of the Species of Acmaeodera of the United States," by 

 George H. Horn, M.D., Trans. Am. Ent. Soc, Vol. vii (1878), pp. 2-27. 



* "Synopsis of Species of Acmaeodera of America, North of Mex- 

 ico," by H. C. Fall, Journ. New York Ent. Soc, Vol. vi (1899), pp. 1-37. 



