176 I5ULLETIN 4.-., UNITKI) STATES NATIONAL Ml'SEUM. 



(►or 7 visibh' teriiitcs. tlir tliird the liir;i<>st. tlic tirst, fiiniislM-d willi a 

 lioni at base rxtnuliiij;' over tli«' nx'tathorax. 

 Lejjs ;is ill ^[coIhs. 



Male unkn()\vn. Allied to Hans, Aa>lns, iiiid AvoUtidcs^ Imt readily 

 separated by the projeetiii};' horn at the ba.se of the abdomen, as in 

 linnjcouus^ Calotclcia, ete. 



The two spet'ies known to me may bf tliiis tabnlatiMl: 



TAIJLE OF Sl'KCIKS. 

 \\'itif;lfss 2 



lilack, liiiciv, cloHcly inuictulat*'; le^s iiixl ;iutoim;r, yellow. 



AIkIoiiu'h i>(tint»'d ovati', longer tlian the head and the thorax together 



I'. COKXUTi'S. 8p. IIOV. 



2. Head and thorax blaek, tiiU5ly. closely jMinctnlate. 



Ahdoineii. legs, and .inteuiia- hright yellow, the tbrnier with two fuscous s|>ot8 

 toward liase C BixoTAirs. sj». nov. 



CeratobaeuB cornutus 8|i. iio\ . 

 (I'l. Mil, Fig. S. 9 .) 



9. lien^th, 1.5""". IJlack. tinely, <'l<)sely ])nn<*tnlate; tin' head with 

 s<tine taint, thinible-like pnnetures; antenna' aiul leys, yellow. Head 

 about .{J times as wide as thiek antero ])osteriorly ; the lower part of faee 

 siiKKdh. shininy, with a slight grooved line from front oeellus, the rest 

 of the head closely i>unetiilate. Antenna- 7-Jointed, the elnb inarticn- 

 late; the tirst fnnielar joint is half the length of the pedicel, or twico 

 as long as thick; the three following, transverse. The thorax exhibits 

 two very short grooved lines posteriorly, just in front of the scutellum, 

 that are evidently the Ixigi'ining of the parai)sidal furrows. Meso- 

 l>leura with a crenulate femoral furrow. Metaj)leura jiunctate, di- 

 vided into two parts bj^ a fovea and a groovi'd line. Wings subhyaline, 

 the uiTvures lirown; the marginal vein is abotit half the length of the 

 stigmal. Abdomen i)ointed-ovate, <lepressed, longer than the head 

 and tlKnax together, minutely punctate, with a microscopic pubes- 

 cence; the horn on the tirst .segment reaches to the apex of the scutel- 

 lum and is wholly longitudinally striated; the second segment is much 

 wider but no longer than the first; the thinl segment is the longest 

 and widest, being 2i times as long as the secoial; the fourth, is about 

 half the length of the second; the fifth still shorter; the pixth, very 

 short, si-arcely discernible; the seventh, ])ointed or conical, and longer 

 than the fourth. 



Hahitat. — Washington, !).('. 



Type in Coll. Ashmead. 



Described from a single specimen taken by Mr. K. A. Schwarz. 



. Ceratobaeus binotatus sp. nov. 



9. Length. <».S' Head and tliorax idack, <los4'iy, minutely puiic- 



t"late; antenna-, legs, and abdomen bright yellow, the latter with two 



