Pomona College, Claremont, California 9 



Eusandalum arizona n. sp. 



A female, Santa Rita Mountains, Arizona (Schwarz), May 27. 

 Catalogue No. 20361, U. S. National Museum, tag. See table. 



Synopsis of the North American Species of Eusandalum. 

 Females. (From the types.) 



1. Wings bifasciate, the distal fuscous band at apex. Legs red 



except the coxae, the antennae wholly concolorous. Ovipos- 

 itor extruded for over half the length of the abdomen. 

 Scutellum longitudinally lined. 



Hyaline band of fore wing distinctly narrower than either 

 fuscous band ( one on each side of it) ; stylus a little shorter 

 than the ovipositor. calif ornicum Girault 



Hyaline band of fore wing somewhat broader than either 

 fuscous stripe; stylus and ovipositor equal. 



coquillettii Ashmead 



2. Wings unifasciate or wholly embrowned or with a large 



unbroken, fuscous area. Wings wholly infuscated. Scutel- 

 lum densely punctate like the scutum (in the first species). 

 Propodeum with a lateral sulcus. 



Ovipositor much extruded. 



Legs reddish except the coxae and the first and third femora 

 ventrad; more slender than usual, the ovipositor about as 

 in calif ornicum but the abdomen is longer, hence the oviposi- 

 tor is so. Fore wing with a longitudinal white streak caudad 

 of middle. acmaeoderae Rohwer 



Ovipositor extruded for less than a fourth the length of the 

 abdomen, the stylus subobsolete. 



Fore wings indefinitely slightly stained; legs reddish except the 

 coxae; scutellum long-lineolated. obscurum Girault 



Wings infuscated from the bend of the submarginal vein to 

 apex or nearly. Antennae concolorous (compare ob- 

 scurum) . 



As in calif ornicum but the scutellum finely puncate ; differs from 

 acmaeoderae in being more robust, the first and third femora 

 are not metallic ventrad, the costal cell is broader, the tip 

 of the fore wing is hyaline for a short distance. 



alpinum Girault 



