REHN AND HEBARD 73 



Vigo County, Indiana, VIII, 17 and 18, IX, 28 and X, 1, 1893, (W. S. Blatch- 



ley), 1 cf, 5 9, [Hebard Cln. and U. S. N. M.]. Parntypes of 0. bruneri. 

 Iowa City, Iowa, (Shimek), 3 9, [Hebard Cln.]. 

 Cedar Bluffs, Iowa, 1 d', [Hebard Cln.]. 



Orchelimum bradleyi new specie.s (Figs. 4, 31, 61, 62 and 83.) 



1911. Orchelimum volantum Rehn and Hebard (not Orchelimum volnnlum 



McNeill, 1891), Proc. Acad. Nat. Sci. Phila., 1910, p. 595. [Okefenokee 



Swamp, Georgia.] 

 1911. Orchelimum volantum Sherman and Brimley (not McNeiU, 1891), 



Entom. News, xxii, p. 391. [Wilmington, North Carolina.] 



The acquisition of male individuals of this striking species, and 

 the ability to judge the constancy of the ovipositor characters 

 previously pointed out (vide supra), enal)le us to differentiate the 

 present form from its nearest ally, the interior volantum. While 

 the general form is very similar the new species is distinctly the 

 larger, the cephalic and median femora are more distinctly taper- 

 ing and the caudal femora are slightly more inflated proximad. 

 In the male sex the differential characters are cereal, the new 

 form having the cercus more attenuate distad, mesad more 

 inflated on the dorsal surface and with the median tooth de- 

 cidedly proximal in position and directed more ventro-proximad. 

 Another cereal feature in the new form is the decided depression 

 at the base of the tooth. In the female sex the ovipositor of 

 bradleyi is similar in general character and dorsal curve to that 

 of volantum, but it is narrow disto-mesad w^ith the ventral margin 

 regularly and gently arcuate. 



Type. — cf ; Chase Prairie, OkeefT3nokee Swamp, Georgia. Sep- 

 tember 5, 1913. (J. Chester Bradley.) [Acad. Nat. Sci. Phila., 

 Type no. 5242.] 



DescripHon of Type. — Size medium; form elongate, slender. Head with the 

 fastigium roundly and appreciably elevated dorsad of the occiput, as in volantum 

 regularly rounding, when seen from the lateral aspect, to the interfastigial 

 suture, narrow, ventral portion with the adjacent facial fastigium strongly 

 compressed; eyes subovate in basal outline, moderately prominent when seen 

 from the dorsum ; antennae at least two and one-half times as long as the body. 

 Pronotum with the dorsal outline of the metanotum moderately ascending 

 caudad; cephalic margin of the pronotum emarginato-truncate, caudal margin 

 moderately arcuate; prozona slightly more than one and one-half times the 

 length of the metazona, greatest dorsal width of metazona four-fifths the dorsal 

 length of the entire pronotum; lateral loties of the pronotum with the greatest 

 dorsal length of the lobes subequal to their greatest depth, ventro-ccphalic 

 angle obtusely-rounded, ventral margin oblique, straight, ventro-cephaUc 



TRANS. AM. ENT. SOC, XLI. 



