NO. 14.S7. NORTH AMFAIICAN DIGGER WASPS— FERNALD. 367 



Legs. — Coxffi almost black, with a few short hairs; remainder of 

 the legs black to dark ferruginous brown; trochanters with a number 

 of short dark hairs; posterior tibia; light brown sericeous behind; fore 

 metatarsus with nine (sometimes ten) long, slender comb teeth; ))ases 

 of the claws lighter than the rest of the tarsus; the claws theinseh^es 

 very minute. 



V((/'i(ttlo/is. — In examples with fuliginous wings the abdomen, except 

 the tirst two and last plates above and beneath, is generally black. 

 The black may also encroach on the posterior part of the second seg- 

 ment and on the sides of the last one. 



Male. — Anterior margin of the clypeus extending obliquely down- 

 ward and inward from the side, then transverse, slightly emarginate, 

 a little retlexed; a faint trace of silvery pubescence sometimes present 

 on the cheek just behind the eye, and another on the posterior end of 

 the median segment or in some cases above the hind coxa; body rather 

 more densely clothed than in the female; sixth and seventh ventral 

 abdominal plates slightl}" emarginate behind; terminal ventral plate 

 with its hinder border rounded at the sides, acuminate in the middle; 

 terminal dorsal plate evenly rounded; the a])domen generally with an 

 opalescent luster; generally black, but sometimes more or less ferru- 

 ginous on the first, second, or both segments; legs usually entirely 

 black. In other respects the male resembles the female. 



Length. — Females, 17-22 nun.; males, 13-19 mm. 



This species appears to be found onl}^ in our Southern and Western 

 States and in Mexico. I have studied examples from Tifton and other 

 (unnamed) places in Georgia, Texas, New Mexico (Alamogordo, taken 

 from A])ril 2(3 to June, 11>U2, and elsewhere); southern Arizona (F. H. 

 Snow, August, 1902); Los Angeles County, Knight's Valley and Sonora 

 County, California; Ormsby County, Nevada (July 6, Baker); Lewis- 

 ton, Idaho; Yellowstone,^Iontana (August, 1883); Yakima River near 

 Eilcnsburg, Washington (July 8, 1882); and from Low^er California, 

 and Guadalajara in Jalisco, Mexico. 



That there is no error in placing C. helfiagel Cresson as a synonym of 

 O. lucae is shown by the fact that a homotype of the former sent to 

 Kohl, who studied Saussure'stype, was returned marked '^ Sphex lucae 

 Sauss. certissime." 



A picture of this insect under Cresson's name is given as figure 10, 

 Plate XI, of the Insect Book. 



CHLORION (PROTEROSPHEX) CUBENSIS, new name. 



"? Splie.r lanierii GvERiN, Icon. d. Regne Anim. Cuv. Ins., VII, 1845?, p. 438. 

 \\Sphex Haripeii Koiil, Ann. natnr. Hofmus. Wien, V, 1890, p. 895. 



A large, rather robust insect. Body to the petiole, black; petiole, 

 abdomen and legs beyond the middle of the femora pale ferruginous. 

 Wings (juite hyaline with a yellowish tinge, slightly fuliginous on the 



