INVESTIGATIONS ON THE MUTILLID WASPS 221 



Group OCCIDENTALIS 



Females with the head narrower than the thorax except in 

 gorgon, leda, o/ureola, and aureola var. pacifica) ; antennal scrobes 

 carinate above (except in gorgon and leda) ; thorax distinctly longer 

 than broad, subrectangular ; scutellar scale well developed, usually 

 with a sinuate, discontinuous carina immediately anterior ; pygidium 

 either longitudinally striate or rugose; bodies coarsely sculptured 

 and clothed with dense, erect pubescence. Large, 10-25 mm. 



iNIales black, the abdomen above clothed with dense, erect white, 

 yellow, or red pubescence; head narrower than the thorax (except 

 in aureola and aureola var. faciflca) ; second abdominal sternite with 

 a median pit densely filled with hairs; apical margin of last tergite 

 with or without a fringe of short, erect hairs. 



89. DASYMUTILLA OCCIDENTALIS (Linnaeus) 

 Plate 3, fig. 23 



MuHlla occidentalis Linnaeus, Syst. nat., ed. 10, vol. 1, p. 582, 1758, fe- 

 male.— Sulzer, Keimz, d. Insect, p. 53, pi. 19, fig. 12Qg, 1761 ; Syst. nat., 

 ed. 12, vol. 1, p. 966, 1767. — Fabricixjs, Syst, eutom., p. 396, 1775. — Ph. 

 L. MuLLER, Linnaeus; Vollst. Natursyst., vol. 5, pt. 2, p. 918, pi. 27, 

 fig IS, 1775.— Fabricius, Spec. Insect., vol. 1. p. 494, 1781; Mart. Insect., 

 vol. 1, p. 311, 1787. — Gmelin, Linnaeus: Syst. nat, ed. 13, vol. 1, pt. 

 5, p. 2805, 1790.— Christ, Naturg. d. Insect., p. 148, pi. 12, fig. 3, 1791.— 

 Lepeletier, Hist. nat. Insect. Hymen., vol. 3, p. 596, pi. 36, fig. 8 (male), 

 1845, female, male. — Mendenhall, Amer. Natural., vol. 17, pp. 323-324, 

 1883.— Daixe Torre, Cat. Hymen., vol. 8, pp. 67-68, 1897.— Fox, Trans. 

 Amer. Ent. Soc, vol. 25, p. 237, 1899.- Meilander, Trans. Amer. Ent. 

 Soc, vol. 29, p. 296, pi. 4, fig. 9, 1903. 



Mutnia Ufasciata Swederus, Svensk. Vet. Akad. Handl., vol. 8, p. 285, 1787, 

 male.— Gmelin, Linnaeus : Syst. nat, ed. 13, vol. 1, pt. 5, p. 2S08, 1790.— 

 Dalle Torre, Cat. Hymen., vol. 8, p. 16, 1897. 



Mutilla coccinea Fabricius, Eutom. system, vol. 2, p. 366, 1793 ; Syst. Piez., 

 p. 429, 1804. — JuRiNE, Nouv. meth. class. Hymen., p. 267, 1807, female. — 

 Klug. Magaz. Ges. naturf. Fr. Berlin, p. 62, 1808, female.— Olivier, Encycl. 

 method. Insect., vol. 8, p. 55, 1811.— Leach, Zool. Miscell, vol. 2, p. Ill, 

 1815, female, male, pi. 100. — Serville and Palisot de \Beauvais, Insect. 

 Afr. & Amer., p. 257, Hymen., 1821, male, pi. 10, fig. 1 male, and 2 

 female.— Lucas, Guerin : Diet, pittor, d'hist. natur. Paris, vol. 9, p. 535, 

 1837, female, male; Atl., pi. 395, fig. 2.— Dumeril, M6m. acad. sc. Paris, 

 vol. 31, p. 903. 1860, fig. 



Mutilla iSphaerophthalma) occidentalis Blakb, Trans. Amer. Ent. Soc, 

 vol. 3, p. 236, 1871, female, male; Trans. Amer. Ent. Soc, vol. 4, p. 73, 

 1872, female, male. 



SphaeropMlialma occidentalis Radoszkowski, Horae soc. entom. Ross., vol. 

 19, p. 32, pi. 6, fig. 46, 1885.- Blake, Trans. Amer. Ent. Soc, vol. 13, p. 223, 

 1886, female, male. 



