506 CALIFORNIA ACADEMY OF SCIENCES. 



transverse median blotch ; on metasternum oblong inter- 

 coxal blotches, and a large median blotch longer than 

 wide and pointed posteriorly. 



Abdomen elongate, subparallel-sided; segments i, 7 

 and 8 short; segment 9 very short; posterior angles of 

 segments with a series of five longish fine hairs arising 

 from very small but distinct pustulations near the posterior 

 margin of each segment; beyond this series at each end 

 and near the posterior margin a longer, stronger hair on 

 larger pustulation ; all segments except segment 9 with 

 a broad chestnut brown transverse blotch covering all of 

 the segment; stigmatal spots clear; narrow dark rusty 

 brown lateral bands; sutures uncolored; segment 9 un- 

 colored, with two faint brownish lateral blotches, weakly 

 angularly concave behind, without hairs, except two very 

 short prickles, one on each half of posterior margin, 



Lipeurus baculus Nitzsch. (Plate lxviii, figs. 4 and 6.) 



Gerniar's Mag. Entomol., 1818, vol. iii, p. 293. 

 Pulex columboe majoris Redi, Opuscnlorum pars I, sive experimeuta 



circa generationein Iusectorum, 1686, pi. ii; Albin, Nat. Hist. 



Spiders and Other Curious Insects, 1736, pi. xliii.; Schrauk, 



Euumeratio Iusectorum Austria?, 1781; Geoffrey, Hist, abregee 



des Iusectes, 1762, vol. ii, p. 599. 

 Pediculus columbce Linue, Systema Natura, 1767; Fabricius, Systema 



Entomologia?, 1775. 

 Nirmus filiformis Olfers, De Veg. et Auiui. Corp., 1817, p. 90; Lyon- 



net, Reck. s. l'anat. et les met. d. diff. esp. d. iusectes, 1832, p. 



273, pi. xiii, tig. 10. 

 Lipeurus baculus Nitzsch, Burmeister, Haudbuch d. Eutomologie, 



1832, vol. ii, p. 434; Deuuy, Monograph. Anoplur. Brit., 1842, 



p. 172, pi. xiv, tig. 3; Gurlt, in Mag. f. d. ges. Thierheilk, vol. 



viii, p. 424, pi. viii, fig.; Nitzsch (ed. Giebel) Zeitschr. f. ges. 



Naturwiss, 1866, vol. xxviii, p. 379; Giebel, Iusecta Epizoa, 1S74, 



p. 216; Piaget, Les -Pediculiues, 1880, p. 303, pi. xxv, tig. 2; 



Tascheuberg, Die Mallophageu, 1882, p. 123; Giraud, Bull, de 



la Soc. Ent., 1859. p. 140; Osborn, the Pediculi and Mallophaga 



affecting man and the lower animals, Bull. No. 7, Div. of Eut., 



U. S. Dept. of Agric, 1891, p. 38, with fig. 



