NO. 1487. NOHTH AMERICAN DKidEll WASl'S—FERNALD. 399 



out hairs; hind tibias ferruginous except for a black stripe above; 

 sericeous, especiall}' ])ehind; tarsi dull ferruoinoiis, lighter at the tip 

 of the metatarsus and of the next segment (sometimes the whole of 

 these two segments); last three tarsal segments at least, darker; the 

 tips of the claws l)lack; spines on all the logs ferruginous; inner con- 

 tour of the hind tibia straight. 



Female. — Differing from the foregoing, according to KohFs descrip- 

 tion, as follows: hind tibia without thei)lack stripe above; there seems 

 to be pubescence on the hinder end of the median segment in both sexes 

 according to Kohl, but I have not found it in the males described 

 above-; inner margins of the e3^es parallel; fore metatarsus with nine 

 comb teeth; abdominal structures of the last few segments differing, 

 of course. 



Length. — Females, "22-2-t nun.'' (Kohl); males, 15-24 mm. 



I have seen three specimens of this species captured in Mexico (no 

 closer data). Kohl thinks that it ma}'^ be a variation of (Idorion IcJt- 

 neurtioncum., and this may be correct, though I am inclined to dou])t it. 



CHLORION (PROTEROSPHEX) ICHNEUMONEUM ( Linnaeus). 



Apis ic.hncumonea Lixn.eus, Syst. Nat., 10th ed., I, 1758, p. a7S. 



Vespa jamaiccnsis Drury, 111. Exot. Ins., I, 1770, p. 104, pi. xmv, lig. 4. 



Sphex ichnenmonea F.^briciu-, Syst. Ent., 1775, p. ."MS. 



.^ AS/;/(('.f ornato Lepeletier, Hist. Nat. Ins. Hyin., Ill, 1S4.">, p. ."314. 



Sphex ichneumonea \N AUiu and Rilky, Am. Ent., T, 1S60, p. 127. 



Sphex ichneunioneo, Packard, Guide to Study of Ins., 2d ed., 1870, p. 167. 



Sphex ichneumonea Cresson, Trans. Am. Ent. Soe., IV, 1872, p. 213. 



Sphex ichneumonea Riley, 1st Rept. U. S. Ent. Com., 1878, p. 318. 



Sphex ichnetimonca F ATTON , I'roc. Bos. See. Nat. Hist., XX, 1880, p. 382. 



Sphex ichneumonea C'amerox, Biol. C'entr.-Amer., Hym., II, 1888, \^. 34, pi. iii, 



figs. 8, 8a. 

 Sphex ichneumonea Provancher, Addit. Faun. Can. Hym., II, 1889, p. 257. 

 Sphex ichneumoneus KoHh, Ann. natur. Hofmus. Wien, V, 1890, p. 430. 

 Sphex ichneumonea Ashmead, Psyche, VII, 1894, p. (54. 

 Sphex ichneumoneus Fox, Proc. Acad. Nat. Sci. Phila., 1897, p. 377. 

 Sphex ichneumonea Peckiiams, Wise. Geol. and Nat. Hist. Surv., Bull. 2, 1898, 



p. 33, pi. II, fig. 4; pi. XI, fig. 1; pi. xii, figs. 1, 2. 

 Sphex ichneumoneus DvcKE, Zeits. f. Syst. Hym. u. Dipt., I, 1901, p. 242. 

 Sphex ichneumonea Peckiiams, Wasps, Social and Solitary, 190.5, p. .^B. 



Rather robust insects, of medium size; head, thorax, petiole, and 

 bases of the legs black; abdomen black and ferruginous; legs mainh' 

 ferruginous; wings nearh^ hyaline to quite fuliginous; pubescence 

 golden or a little paler; hairs golden to pale straw. 



Female. — Head rather large, quadrangular when viewed from al)Ove, 

 the cheeks being quite wide; clypeus somewhat arched laterally, all but 

 its anterior margin thickly covered with golden pubescence and numer- 

 ous long golden hairs; the pubescence may bo thin orabsent along the 

 median line anteriorly; anterior margin somewhat refiexed, rounded, 

 with a pair of short, blunt, projecting lobes at the middle, separated 



