No. 2317. FIVE TRIBES OF ICHNEUMONINAE—ROHWER. 445 



but restricted Xorides to species which he considered to be congeneric 

 with alhitarsus Gravenhorst. This restriction, which excludes the 

 genotype, has unfortunately been adopted by all writers except 

 Viereck (1914) who calls attention to the nomenclatorial error and 

 proposes the name Deuteroxorides to replace Xorides Gravenhorst 

 and Authors. 



Deuteroxorides is one of the most easily recognized genera in the 

 subfamily Ichneumoninae, and although it has many characters in 

 common with Xorides can easily be distinguished by the characters 

 mentioned in the generic table. Its species are parasitic on such 

 wood-boring insects as Cerambycids, Buprestids, and Siricids, yet in 

 one instance it has been recorded as reared from a Lepidopterous 

 insect, Laspeyresia toreuta, living within the cones of pines. 



Eyes strongly converging below; malar space very narrow; malar 

 furrow wanting; posterior orbits with a raised ridge which is armed 

 with tubercules; prescutum well defined anteriorly, not tuberculate; 

 disk of the mesonotum transversely aciculate or striate; propodeum 

 long, gently sloping, not areolate or at most the petiolar area present; 

 legs long, normal; abdomen long, compressed apically in the female, 

 parallel sided in the male; apical tergite of female much produced; 

 nervellus reclivous, broken well above the middle. 



No reliable structural characters to separate the species have been 

 discovered and it was necessary to resort to color. The color of the 

 abdomen, head markings and mesoscutum are subject to consider- 

 able variation, while the markings of the pronotum and mesepister- 

 num are constant and offer good specific characters. The relative 

 length of the ovipositor is subject to such wide variation (as is proven 

 by reared specimens of caryae) that it can not be used as a specific 

 character. 



TABLE TO THE SPECIES. 



1. Mesepisternum beneath with oblique yellow band caryae (Harrington). 



MeBepietemum without an oblique yellow band, black or with small yellow spots 



below the tegula 2. 



2. Upper posterior margin of the pronotum with a yellow line (in the female the lower 



margin is black, in the male yellow) vittifrons (Cresson), 



Upper posterior margin of the pronotum black, the lower margin yellow. 



horealis (Cresson). 



DEUTEROXORroES CARYAE (Harrington). 



Xorides caryae Hareington, Can. Ent., vol. 23, 1891, p. 132. 



Type. — Collection of Harrington, lacks antennae. Notes from 

 specimen compared with type and specimens from localities listed 

 below. 



This species is easily recognized by the yellow line on the mesepis- 

 ternum. In the extent of the yellow markings of the abdomen, 

 thorax above and head it is subject to but little variation, but the red- 

 dish markings of the legs vary from bright red to reddish piceous. 



