No.]3(U). yjjw MKXK'AX njvMU'TJJJLi—JIJJTL'JiOl'TJLJLi -IJIJJJJL ;3(jl 



A pair of these insects were secured August 12 in the canA^on noar 

 Las Vegas. 



This spocios is less convex tlian //. iiltl<h(!< Uhlci'. hut more so than 

 //. hractatua Say. 



STIPHROSOMA ATRATA Uhler. 

 Sli])}irnsotii<i (ilnilii VuiAiu, Cal. Acad. f^ci. Trans., IV, 1894, j). liHS. 



Two specimens Avere taken in the canyon near Las Vegas Hot 

 Springs, August 12. 



This species conies very near to the eastern /S. .sti/(//'cif Say, whicli 

 li\es on the Jiaccharh halimifolia on our Athmtic tidewater beaches, 

 in Mar3dand, Virginia, North Carolina, Ncav Jersey, etc. 



BOLTERIA AMICTA Uhler. 

 liolfcria a)>iida\Jni,KR, Entoiu. Aiuer., Ill, 1.SS7, [>. ;>4. 



Three specimens were captured August 1<). The species is a ver}- 

 variable one. 



AGALLIASTES ASSOCIATUS Uhler. 

 JffaIUastf)< assocktttis VuLVAi, Hayden, Report Geol. Suiv. Mimtana, 1S72, p. 419. 



Several specimens were taken near Las Vegas, Hot Springs, August 

 1, 12, 17. 



ATOMOSCELIS SERIATUS Reuter. 



Atonio>!cclix scriufn.s Rki'tek, Caps, ex J>or. Anier. , \). 91. 



Two or more specimens of this neat little insect were secured 

 August 5 and 10. 



Family CEKATOCOMBID.E. 



CERATOCOMBUS BRASILIENSIS Reuter. 

 Ceratocornbux bntsiliensis Revtkh, Mun(><j. Ceratocoin])., 1871, p. 7, no. o. 



One specimen, which appears to belong to this species, was found 

 August 14. 



It is smaller than normal, and the Avhite spots of the corium seem 

 relatively large. 



CERATOCOMBUS NIGER, new species. 



Form nearly like 6'. hro.silirnsl-^ Reuter. black, almost ()])a<jue. mi- 

 nutely, indistinctly pilose. Head a little more robust than in the 

 species eitcxl a))ove, the antennae long and tiiick, the rostrum stout, 

 reaching to the posterior coxse. Pronotum very moderately convex 

 above, the transverse line distinctly delined and deeply imi)ressed on 

 the latei'al margins, himieri |)romiuent: the steiinun and i)leui'a ])ice- 

 ous, dull ])luish Idack. w ith the coxal areas dull testaceous. Leo-s dull 



