REVISION OF THE AMERICAN CIMICIDÆ. 
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1 . Oeciacus vicarius n. sp. 
Pallide flavo-testaceus, sat longe et parce griseo-pilosus ; capite 
latitudine sua cum oculis paullo breviore, fuscescente, apice pallido, 
vertice subtilissime punctulato, parte porrecta clypei apicem versus haud 
dilatata ; antennis pilosulis, articulis secundo et tertio longitudine aequa¬ 
libus, articulo quarto articulo praecedente V 7 breviore (11= 28, III = 28, 
ÏY — 24) ; pronoto longitudine sua media 2Vs latiore et quam capite 
\4 breviore, fuscescente, ubique testaceo-limbato, obsoletissime punctu¬ 
lato, margine antico leviter, sed aequaliter sinuato, marginibus latera¬ 
libus rotundatis, totis depressis, longe ciliatis, ciliis his latitudine oculi 
multo longioribus; scutello pronoto dimidio breviore, toto vel fere toto 
fusco, dense subtilissimeque punctulato ; elytris sat remote et obsolete 
punctatis, margine apicali subrotundato-truncato, commissura scutello 
breviore, angulo apicali interno valde rotundato, margine costali longe 
ciliato ; abdomine late ovali, superne transversim subtilissime ruguloso, 
ad incisuras segmentorum fasciis fuscis vel fuscescentibus notato, cf. 5 . 
Long. corp. 3‘6—4*5, Lai pronoti 1*1, abdominis 2*0—2’25 mill. 
The U. S. National Museum of Washington possess a small series 
of specimens taken in the nests of swallows from various places of the 
United States : Claremont, N. H. (Dr. H. C. Sanders), Jowa (C. P. Gillette), 
Los Angeles, Cal. (C. Y. Biley, Coquillet), Wamaria, Cal. (W. Clapplane). 
One specimen labelled «Mexico» was found in the nest of the Purple 
Martin (Progne 'purpurea). 
This species was mentioned by some American authors as Oeciacus 
hirundinis Jen., but differs from this European species by the larger 
size, the pale coloration checkered with more or less distinct brownish 
markings, the structure of the antennae, the anterior margin of the 
pronotum slightly, but distinctly sinuate and the obsoletely punctured 
elytra, the apical margin of which is nearly straight towards the middle. 
The anterior margin of the pronotum is uniformly sinuated in the 
American species, w 7 hile nearly straight towards the middle in the 
European one. 
Hæmatosiphon Champ. 
Haematosiphon Champion Biol. C. Am. II. p. 337. (1900). 
This monotypic American genus is readily recognizable by the 
long rostrum, the structure of the scutellum and elytra, the subcon- 
tiguous intermediate and posterior coxæ, etc. 
