HYMENOPTEROUS PARASITES OF COCCID.F.. 61 



Compared with C. megerlei (as figured by Kohl) it differs 

 thus : — 



(1) Stigma more tapering at both ends ; angle formed by stigma 

 and marginal nervure smaller. » 



(2) Transverse cubital joins marginal cell much nearer middle. 



(3) Basal nervure is more remote from stigma, and its upper 

 section is much shorter in proportion to the lower. 



(4) Basal nervure almost exactly meets transverso-medial. 



In all these particulars the insect agrees excellently with 

 C. sayi nov. nom. (C. sexmaculatus, Say, 1824, not Olivier, 1791), 

 although in C. sayi the stigma is smaller. The reddish wings 

 and the punctate groove crossing the pleura are also as in 

 C. sayi. C. sayi occurs to-day at Boulder, Colorado. 



Hab. — Miocene shales of Florissant, Station 14 {W. P. 

 Cocker ell). 



The genus Crabro is very abundant to-day at Florissant. 

 The recent species have been studied by Mr. S. A. Kohwer, who 

 has described sis new ones from that locality. 



ON THE HYMENOPTEROUS PARASITES OF COCCIDiE. 

 By Claude Morley, F.Z.S., F.E.S. 



(Continued from p. 31.) 



54. Lecanium persicce, Geoff. 

 Dr. Mayr raised Phcenodiscus (Encyrtus) ceneus, Dalm., from 

 the "Peach Scale" in Austria (Verb. z.-b. Ges. 1875, p. 758). 

 Coccophagiis cognatiis, How. (Revis. 1895, p. 35), C. lecanii, 

 Smith {I.e. p. 33), and C. juscipes, How. (Report Ent. U.S. 

 Agric. 1881, p. 359) have been bred in America. From the 

 synonymous L. rosarum, Vol!., Gaulle (Cat. 106 et 99) records 

 Aphelinus scutellaris, Dalm., and Blastothrix sericea, Dalm. Dalla 

 Torre says Ratzeburg (Ichn. d. Forst. iii. 106) records Coccobius 

 notatus from Coccus roses, which Mr. Newstead regards as belong- 

 ing here, though it is more likely referable to Diaspis, since I see 

 it is bracketed ^^Aspidiotus." 



55. Lecanium inula.* 

 From a Coccid so named in his Catalogue (p. 102), Gaulle 

 records Pteromalus hemipterus, Walk. (Ent. Mag. 1836, p. 196). 



56. Lecanium pruinosum, Coquil.* 57. L. quercitronis, Fitch.* 

 The omnivorous Coccophagus lecanii, Smith, is said by Howard 

 (Revis. 1895, p. 33) to attack these species in Northern America. 



58. Lecanium viride. Green.* 

 This species is said (Proc. U. S. Nat. Museum, 1896, p. 633) 

 to be destroyed by Coccophagus orientalis in Ceylon. 



