1852.) 95 
postice constricto, elytris ovalibus, convexis, macula magna laterali, fasciaque 
angusta postica niygris. Long. :1. | 
Sea beach of Sullivan’s Island, 8. Carolina: June. Body bright reddish yellow, 
very smooth and shining; head large slightly convex, rounded behind, marked 
with a few distant punctures, and four or five erect black hairs; front blackish : 
antenne with the joints 2—6 slender, nearly equal, 7—11 gradually increasing in 
size. ‘Thorax as long as the head and one half narrower, transversely convex, 
much narrowed and constricted just behind the middle, then widened a little to 
the base, which on each side has a-wide shallow fovea. Elytra oval, gradually 
dilated to the middle, where they are three times as wide as the thorax; apex 
rounded: humerai angles obsolete, disc convex smooth, ornamented with a large 
lateral blackish spot at the middle, and a narrow blackish band between that and 
the apex; margin with a few black bristles. Body beneath finely punctured, 
and slightly pubescent, thighs slightly incrassated, tarsi slender, lobes of the 4th 
joint very narrow, produced beneath; posterior tibie slightly compressed and 
bent. 
I can find no sexual difference. This and the next species might more pro- 
perly enter ¥erté’s 4th division of Anthicus, but both have the neck of the thorax 
distinet, and this one iscompletely apterous. Atany rate they show the necessity 
of uniting the two genera. 
2. A. mundus, alatus, rufo-testaceus nitidissimus, thorace elongato, pone 
medium constricto, basi 3-punctato, elytris pone humeros impréssis, rufis fascia 
lata ad medium, maculaque maxima apicalinigris. Long. :09.  » 
Hormicilla munda Lec. An. Lyc. 5, 152. Bright reddish yellow, very smooth 
and shining, witha few black sete ; antennz, head and thorax as in the last, 
except that the latter is less convex on the disc, and has three points at the 
middle of the base. Elytra much less convex, slightly dilated as far as the 
middle, rounded at the apex; humeri distinct obtuse: disc obsoletely and 
sparsely punctured before the middle, post humeral impression large and distinct: 
ornamented with a very broad black fascia at the middle, and a very large 
common black spot, which extends nearly to the apex, leaving only a narrow 
yellow fascia between it and the band just described, and a narrow lateral and 
apical margin yellow. Body beneath ferruginous, finely punctured and pubescent. 
Thighs moderately incrassated. : 
I found only two specimens of this insect, on the lower part of the Colorado 
River. It agrees so closely in general characters with the preceding species, 
that it would be unnatural to separate it as a distinct genus. I am, therefore, 
led to believe that the filiform tarsi, ascribed by me to this insect, must be an 
error of observation, depending on the condition of the specimens, which unfor- 
tunately became mouldy at Panama. All my attempts to cleanse the tarsi have 
heretofore proved useless; and I may add, that in A. scitulus, the lobes of the 
fourth tarsal joint are so delicate, that the slightest dirt is sufficient to render 
them invisible. 
Awntuicus Paykull. 
Although the arrangement followed by Ferté may be the most convenient in 
working with species from every part of the world, yet it has appeared to me 
to be capable of some improvement, when used in the study of our native 
species. I have therefore attempted to separate them into homogeneous groups, 
so that the diagnoses of the species may thereby be shortened, and the labor of 
identifying species diminished. The following table seems to answer the pur- 
pose without any great violation of affinity. 
A. Caput non granulatum, tibiw calcaribus fere obsoletis. Thorax basi 
marginatus. 
a. Capite rotundato, occipite non impresso, palpis articulo ultimo maximo, 
thorace postice constricto, elytris basi impressis. Sp. 1—3. 
