46 ENTOMOLOGICAL SOCIETY 



ISODONTIA AZTECA Sauss. (Syn. S. (/.) macrocephala Fox, 

 "Ent News"). 



This species occurs in California and Florida, as well as in 

 Mexico and Pennsylvania. 

 CHLORION C^ERULEUM, var. ^ERARIUM. 



Chlorion cerarium Pttn. (1879). 



A male specimen from Indian River, Florida (Dr. Wittfeld) 

 shows this to be a color variety of cceruleum. This specimen 

 has minute dots of blue scattered irregularly over the body. The 

 spiracles on first segment are not elevated. The median pieces 

 of the claspers are lighter colored than in the typical form. But 

 in all structural characters the two agree ; the eighth ventral seg 

 ment forming an isosceles triangle, the other segments with their 

 margins straight. 



A variety occurs showing the blue to change into green. 



GASTROSPH^ERIA is but a section of HARPACTOPUS ; its type 

 [ G. anthracina Costa = Sphex subfuscatus Dahlb. ; now 

 Harpactopus subfuscatus (Dahlb.)] differs from the type of 

 Harpactopus \_Sphex cegyptia Lepel. = H. crudclis Sm. = ? 

 Sphex pensylvanica. Linn. ; now H. cegyptia (Lepel.)] in 

 nothing except the smooth thorax and the form of clypeus. The 

 mistaken reference of pensylvanica led to the suggestion of its 

 relationship with Sphex of the 5*. ichneumonea section. 



The characters of the genus appear to be : Sharp tubercle on 

 postscutellum ; second cubital cell higher than its width on the 

 cubital ; abdomen globose, short, first segment perpendicular on 

 the petiole. 

 Pepsis hesperiae, n. sp. 



Violet-blue, thorax violaceous black; antennae orange, three basal joints 

 in female blackish, the third and base of fourth verging to brown, two 

 basal and base of third (at least above) in male black. Wings yellowish- 

 ferruginous ; the base and margin blackish, more broadly in the male. 



Groove on second ventral segment deep in female, moderate or indis 

 tinct in male. 



Male. Fourth ventral segment with two dense tufts of bristles each 

 side of apical middle, their apices curled inward ; Fifth, hairy on apical 

 middle, the margin scarcely sinuate; Sixth, deeply sinuate in the midr 

 die; each side of sinus near apex a stout, blunt, posteriorly and inwardly 

 directed spine; Seventh, filling sinus; Eighth, elongate, flat, without 

 tooth, apex truncate, sides parallel. Claspers: sagittae curved, S-shaped, 

 apex inwardly beaked, almost hooked, shorter than the two slender sim 

 ple median pieces; outer pieces little longer, simple, a little flattened, 

 the base narrower, the apex subangular. 



Size of P. c&i'ulea. 



Habitat. Poway, San Diego Co., Calif. (Dr. F. E. Blaisdell). 



Resembles P, marginata in the color of wings and in its 



