XORTH AMERICAN BOSTRICHIDAE \i 



converging posteriorly: surface coarsely, uniformly, densely punctate, 

 rather densely clothed with long and short, fine, erect hairs. 



Elytra at base slightly wider than pronotum. arcuately decliv< us 

 near apices : sides parallel or slightly expanded posteriorly, separal 

 broadly rounded at apices: surfaces finely, densely, uniformly run - 

 tate. rather densely clothed with rather short, erect, whitish hairs. 



Body beneath finely, densely punctate or reticulate, densely clot! eel 

 with long, semierect. whitish hairs; last visible abdominal sternite 

 broadly, deeply, arcuately emarginate at apex: second and third seg- 

 ments of anterior tarsi slightly expanded, and densely pubsscent 

 beneath. 



Female. — Differs from the male in having the last visible abdcnvnM 

 sternite rounded at the apex, the second and third segments of anter^ «■ 

 tarsi not expanded, or conspicuously pubescent beneath, and usu lly 

 with all the abdominal sternite- uniformly reddish yellow. 



Length 6-11 mm., width 2-3.5 mm. 



Type locality. — Of maculata, San Francisco. Calif.: type lost. Of 

 r-h roulfs. San Diego. Calif. : type was in the Deutsches Eintomologische 

 Museum in Berlin. 



Distribution. — Southern California. A good series has been exam- 

 ined from Los Angeles County, all collected by D. W. Coquillett. Als< > 

 recorded by Coquillett (1892 ) from Santa Barbara and by Horn i 1 852 i 

 from San Francisco. Specimens of cleroides examined that were col- 

 lected by Coquillett in Los Angeles County and by J. C. Bridwell at 

 Berkeley. 



Hosts. — Coquillett (1892) recorded the larvae and pupae in dry 

 apple limbs during October, also in dry prunings of grapevines and 

 rotten stems of Audibertid poJi/sfr/rhya. 



This species was described by LeConte (1852) from a single specimen 

 collected by himself at San Francisco. Calif., for which he erected his 

 new genus Acrepis. Unfortunately this specimen was lost at sea. 

 Horn (1886) redescribed macvlata and figured the different elytral 

 markings. Lesne (1913) described cleroides from a single male in the 

 Deutsches Entomologische museum in Berlin, collected at San Diego, 

 Calif. This form is greenish black, the abdomen entirely reddish, and 

 each elytron with two small reddish spots, one basal and one near apex. 

 This form seems to be intermediate between macitiata and quadrisig- 

 nata. having the wide pronotum of maeulata and the elytral markings 

 of quadrisignata. Having more of the structural characters of max u- 

 lata. it can be considered at most only an aberration of that species. 



PSOA QUADRISIGNATA (Horn) 



Acrepis quadrisignata Horn, 1868, Amer. Ent. Soc. Trans. 2 : 135-136. 



Psoa quadrisignata Horn, 1S78. Amer. Phil. Soc. Proc. 17: 5/i5 : 1886, Amer. Ent. 



Soc. Proc. 13: xvi. fig. 2: Blaisdell, 1892. Insect Life 5: 34; Lesne. 1896, Soc. 



Ent. de France Ann. 65: 99-100, fig. IB; Fall, 1901. Calif. Acad. Sci. Occas. 



Papers. No. S: 25, 134: Lesne. 1912, Paris Mils. d'Hist. Nat. Bui. 18: 404 409, 



figs. : 1913. ibid. 19: 271-275. fig. 1 ; 1938. in Junk (pub. I, Coleopt. Cat., pt. 101. 



p. 30 : Belkin, 1940, Ent. News 51 : 193. 

 Ab. PsOa {Acrepis) sexguttata Lesne. 1906. Soc. Km. de France Ann. 75: 303 394, 



fig 1: 1912. Paris Mils. d'Hist. Nat. Bui. 18: 405, 06; L913, Bui. ]:'■: 272. 



Male. — Elongate, cylindrical: head and pronotum black, with a dis- 

 tinct purplish and greenish tinge; elytra varying from reddish yellow 

 with a few greenish or purplish-black spot- to greenish or purplish 



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