112 C4EO. H. HORN, M. D. 



uearly square, without elevated lines ; metasternum at sides obsoletely coarsely 

 punctate, the niesocoxal line indistinct. Abdomen sparsely punctate, the meta- 

 coxal arc entire, but short and indistinct. Legs paler than upper surface. Length 

 .07 inch. ; 1.75 nun. 



In this species the eyes are much narrower than in the other spe- 

 cies and the impression at the lower end so feeble that it might readily 

 escape notice. 



Hab. — Southern California, Los Angeles and southward. 



C. ornatus u. sp. — Broadly oval, moderately convex, piceous, pubescence 

 gray, directed irregularly, each elytron with two irregularly oval yellow spots 

 not sharply defined, sometimes large, suffused and united. Head moderately 

 coarsely and closely punctate. Eyes with well defined impression at lower angle. 

 Thorax nearly three times as wide as long at middle, slightly narrower in front, 

 sides feebly arcuate, surface moderately punctate. Elytra not closely nor deeply 

 punctate; prosternum broader than long, flat, without elevated lines; metaster- 

 num punctate at the sides, the mesocoxal line joining the suture one-third from 

 the apex. Abdomen sparsely punctate, metacoxal arc entire not half as long as 

 the segment. Legs piceo-testaceous. Length .06 — .08 inch. ; 1.5 — 2 mm. 



No sexual differences have been seen in the six specimens exam- 

 ined. No great variation has been observed, excepting that the 

 spots on the elytra extend and become more or less suffused. The 

 abdomen is piceous, sometimes with the entire border paler. 



This species resembles somewhat Se. guttiddiH.'f, and apparently has 

 been mixed with it in collections. 



Hah. — California, Siskiyon to Alameda, also Catalina Island. 



RHIZOBIUS Steph. 



This genus differs from Scymnus in the antennae reaching to the 

 hind angles of the thorax. The vestiture consists of the usual pu- 

 bescence of Scyynnus with numerous short, erect hairs irregularly 

 placed on the elytra. 



B. lophanthie Blaisd. {Scymnus), Ent. News, March, 1892, p. 51 ; 

 toowoombce Blackb., Trans. Royal Soc. South Aust. xv, December, 

 1892, p. 254. 



Form of Sc. eollaris. — Head and thor-ax reddish yellow, the latter 

 with a central cloud variable in distinctness. Elytra piceous, with 

 feeble seneous lustre ; underside and legs reddish yellow. 



It is unfortunate that an intentionally introduced insect should 

 have been first named in the country of its expatriation. 



Introduced from Australia, Brisbane. 



R. debilis Blackb. — This species in color and form resembles Sc. 

 pallets or Phelp-nl. It has attained but little foothold. 



Introduced with the preceding. 



