xNO. 2293. PARASITIC CHALCIDOID FLIES— TIMBERLAKE. 183 



Redescribed from the following material which had been compared 

 previously with Howard's type: Three females, two males, reared 

 from a Chrysopa cocoon, Pasadena, California, August 7, 1915 (E. J. 

 Branigan), California State Insectary No. 2011; one female collected 

 on Citrus, San Diego, California, September 14, 1911 (P. H. Timber- 

 lake) ; and one female, Washington City, January, 1898 (August 

 Busck). Howard^ also records this species from Kirkwood, Mis- 

 souri, and Amitilla, Florida, in both cases from CJirysopa cocoons. 

 Essig^ records the rearing of iceryae in California from the cocoons of 

 Sympherobius angustus Banks. 



The type of /. pulcher Girault, a female reared from material of 

 Saissetia oleae (Bernard), Claremont, California, October, 1909 

 (C. F. Baker), is mounted on a slide and can not be studied to advan- 

 tage, but it appears to differ from iceryae only in the extension of the 

 yellow coloration. The scutellum is entirely yellow except for a 

 narrow blackish cross-band just before the apex, and the abdomen 

 has more yellow at the base, and the yellow spot at the tactile plates 

 is larger. 



The type of Parataneostigrna nigriaxillae Girault, a female from 

 Mitla, Mexico (L. O. Howard) agrees with the type of pulclier except 

 that the cross-band near apex of the scutellum is less distinct. 



Types. — Cat. No. 1491 (of iceryae Howard), 19339 (of nigriaxillae 

 Girault), and 19794 (of pulcher Girault), U.S.N.M. 



3. ISODROMUS FLAVICEPS (Dalman). 



Encyrtus Jlaviceps Dalman, Svensk. Vet.-Akad. Handl., vol. 41, 1820, p. 348. 

 Homalotyhis Jlaviceps Mayr, Verh. zool.-bot. Ges. Wien, vol. 25, 1876, p. 754. 

 Nobrimus flaviceps Thomson, Hym. Skand., vol. 4, 1876, p. 140. 



This species has not been seen by the writer. It seems to be 

 rare, as the only recorded specimen is Dahrxan's type, collected by 

 Zetterstedt at Larketorp, Sweden, about 100 years ago. In colora- 

 tion, at least, it must be similar to the common North American 

 species, iceryae Howard. 



4. ISODROMUS AXILLARIS, new species. 



Female. — Head hardly longer than wide, not quite so thick fronto- 

 occipitally as in iceryae, but thicker than in niger, the planes of the 

 frontovertex and face meeting in an angle of considerably more 

 than 90°; frontovertex about two and a half times longer than wide, 

 the dorsal orbits of eyes perceptibly but not greatly diverging ante- 

 riorly; the ocelli in an equilateral triangle, the posterior pair almost 

 touching the eye margins, and removed twice then* o\vn diameter 

 from the occipital margin, the median ocellus considerably behind 



iProc. Ent. Soc. Washington, vol. 2, 1891, p. 124. 



■'Inj. and Benef. Ins. Calif., Monthly Bulletin, vol. 2, 1913, p. 1-51. 



