410 PK()CEFA)INGS OF THE NATIONAL MV^EUM. vol. xxxi. 



CHLORION (PROTEROSPHEX) MANDIBULARIS (Cresson). 



Sphe.r mandibuUiris Cresson, Trans. Am. Ent. Soc, II, 1S69, p. 293. 

 Sphex mandihulalris Kohl, Ann. natur. Hofmus. Wien, V, 1890, p. 447. 



Type. — One female specimen collected by Dr. J. Gundlach in Cuba; 

 now in the collection of the American Entomological Society in 

 Philadelphia. 



The following description has been prepared from the typt : 



Female. — Black; wings hyaline, the outer half somewhat fuliginous; 

 pubescence rather dull,- of a pale creamy brown color, perhaps not 

 entirel}^ natural; al)out the size of large specimens of 61 ichneumoneum^ 

 with a stout al)domen. 



Head. — Rather quadrangular from above; clypeus quite strongly 

 arched, black, its extreme lateral angle below the e^'e ferruginous; 

 covered with brownish pubescence, thickest at the sides, and with long, 

 black hairs: its anterior margin convex, evenly rounded, with a slight 

 median notch; the pubescence extends up the sides of the frons to the 

 level of the lateral ocelli; vertex with mixed blackish and whitish 

 hairs which are quite long; cheeks stout, nearly as wide as the eyes, 

 their greatest width lower down than usual; with a narrow pubescent 

 band close behind the eye above; with a few black, and more gray 

 hairs, most abundant and longest below; antennas black, the scape 

 with a few short hairs; the first segment of the filament longest; man- 

 dibles quite long, of the average stoutness, ferruginous to the bases of 

 the teeth, the remainder black; the ferruginous part closely, coarseh" 

 grooved; with mingled ferruginous and whitish hairs behind. 



Thorax. — Horizontal part of the neck with an oblique pubescent 

 band running outward and backward on each side; anterior face of the 

 collar nearly vertical; dorsal edge narrow, pubescent; posterior face 

 closely appressed against the mesonotum; the surface black sericeous, 

 with long, gray hairs; the dorsal edge evenly rounded from side to 

 side, lower than the mesonotum; prothoracic lobe black, pubescent 

 behind, and bearing long, gray hairs; mesonotum coarsel}" black seri- 

 ceous; with a lateral, pubescent band beginning at the front of the 

 tegula and running backward, then inward and almost or quite meet- 

 ing the band of the other side; the anterior median groove pubescent; 

 the surface of the mesonotum with numerous, rather short, gray, and a 

 few black hairs; scutellum with a slight median groove; coarsely black 

 sericeous and with numerous rather short hairs; postscutellum pubes- 

 cent, without any evident groove; median segment quite thickh" cov- 

 ered with long, cream-colored hairs; behind and at the sides the same, 

 except that the hairs are white and longer (the dorsum has been wet 

 and the hairs are so matted that exact conditions there are uncertain); 

 stigmatal groove present; there is a small pubescent spot behind the 

 prothoracic lobe, a short, small Inmd running upward from the middle 



