34 BULLETIN 4.-., L'MTED Kl'ATES NATIONAL MUSEUM. 



9. — Leiijjth S to 0""". Iiiild i>i<M'(Mis, tlic abdonu'ii paler; head and 

 thorax with soin»> scatten'd ]uiii(tiin's: inaiulibh's 4 <l«Mitat«': ]»ali)i i)ale. 

 The i»iothoiax is one aii<l a half times as loiijjf as wide, the sides 

 inijuessed; seutellum tlat, rounded; nutathorax ehinj^ate, laterally 

 toward base very stron<:;ly coiitraeted, so that the base is not half 

 the width of the apex. LejiS brownish yellow, the tibia* strongly 

 spinulose. Abdomen ehtii^ate, ovate. 



Habitat. — (leorgia, Florida, Texas, Mississijjpi, and Maryland. 



Types in llerlin Miiseuni. 



The types of this species I Inive seen in Uerlin. Westwood's type 

 of tiderotUrma thorncica is labeled "Carolina, Zinnnerniann" while it is 

 accompanied by another specimen bearing label "Baltimore, Md." 

 King's type of Prisfoccra aim is in good condition. As suggested by 

 Prof. Westwood, these insects are sexes of a single species. It is the 

 largest species known, and the male miglit easily be mistaken for a 

 Tiphiid. My collection contains specimens eompared with the types 

 in Berlin. I have seen specimens from various i)arts of the country, 

 the S not being rare. The 9 is extremely rare. The National Museum 

 contains a single 9 spe<'imen collected by Mr. E. A. Schwarz, under 

 bark, at Jackson, Miss., February li, 1879. 



Pristocera armifera Say. 



Bethylus armlfenin Say; Lee. Ed. Say, i, p. 383, ^ . 



EptjriH htriventris Cr. ; Trans. Am. Eiit. Soc, iv, p. 193, <? ; Ashm. Ent. Am., in, p. 



76; Crt'ss. Syn. Ilym., p. 217. 

 Scleroderma eontracla Westw. ; Trans. Ent. Soc l^ond., ii, p, 169, pi. 15, f. 11. 9 



i . — Length 7 to 8""". Black, shining, covered with a sparse, glit- 

 tering Avhite pile; head <iuadrate, rugose, with dense coarse punctures; 

 mandibles rufo-piceous ; palpi rufous. Anteniue 13-jointed, setaceous, 

 long, covered with a tint' sericeous jtubescence, the basal flagellar joints 

 about three times as hmg as thick, toward the apex the joints rela- 

 tively longer on account of the antennie tapering off at apex. 

 Pronotuni rugose; mesonotnm snu)other, with sparse deep punctures 

 and 4 grooved lines ; scutellum polished, with few punctures ; metathorax 

 longer than wide, abruptly truncate at tip, transversely rugulose; 

 pleura coarsely punctured. Legs black, tarsi rufo-piceous. Wings sub- 

 fiiscous, the venation similar to J*, atra, but without the water-colored 

 nervures. J ■ 



9. — ^Length 4°"". Eeddish piceous, smooth, shining, impunctured; 

 abdomen darker, the apical margins of the segments pale; antenme and 

 tarsi, yellowish ; mandibles 3-dentate. Antenme 13-jointed, the pedicel 

 more than twice longer than the first flagellar joint, the following joints 

 to the thirteenth not longer than wide, the thirteenth twice longer 

 than wide. The apical margins of the third, fourth, fifth, and sixth 

 abdominal segments are roundedly emarginated. 



