70 THE CANADIAN ENTOMOLOGIST 



genus. Femora usually darker than distal joints, especially on first two pairs 

 of legs. Abdomen also dark above with markings obscure or absent. . 



Genotype. — Phriirolithus formica Banks. 



Other known species in this genus are pugnatus (Emerton) and similis 

 (Banks), the Phriirolithus affinis of Banks being the same species as the pugnatus 

 of Emerton. The North American species remaining in Phriirolithus sens. str. 

 are alarius (Hentz), borealis Emerton, minutus Banks, parens (Hentz), probably 

 britcheri Petrunkevitch, which species is unknown to me, and the new species 

 described below. 



Phrurolithus parallelus, sp. nov. 



Male. — Carapace yellow, lateral margins black, sides a little dusky, with 

 deeper branched lines as in borealis. Legs yellow excepting the first pair which 

 have the femur, patella and tibia, excepting the light distal end of latter, dark- 

 ened, the tibia darkest. Sternum yellow. Abdomen above dark, almost black, 

 without markings, pale beneath with two darker lines united in front of spinnerets 

 and extending forward to middle. Abdoraen narrow with anterior corners 

 angular and the margin between them but little convex, the sides subparallel. 

 Femur of male palpus with a rounded swelling beneath at distal end covered 

 with stifY hairs, this not limited on ectal side by a non-pilose, keel-like elevation 

 such as is present in alarius. Tibial apophysis geniculate at base as usual, 

 rather short, of gradually decreasing w^idth to acute apical part, the latter not 

 bent or twisted. (See Fig. 1.) 



Length, 2.3 mm. Length of cephalothorax, 1 mm.; width .86 mm. Length 

 of tib. +pat. IV, L4 mm.; of tib. +pat. I, L23 mm. 



Locality. — ^Washington, Wawawai. One male. 



NEW PARASITIC HYMENOPTERA OF THE SUBFAMILY 

 ANTEONIN/E (DRYINID^:). 



BY F. A. FENTON, 

 Ames, Iowa. 



The Anteonince^ comprises a small but well-differentiated group of hymen- 

 opterous insects parasitic on leaf and treehoppers (Homoptera). One of the 

 striking characteristics of these insects is the fact that with the exception of one 

 tribe, all the females have the anterior tarsal joints modified to form a chela or 

 grasping organ. In the more specialized genera there is a marked sexual di- 

 morphism, the females being wingless and ant-like. 



During the summer of 1919 the following species were collected or reared 

 from leafhoppers and have been carefully compared with related species and 

 are considered new. 



Epigonatopus americanus, n. sp. 



Female. — This species differs greatly in colour from solilarius Perkins 

 and in body sculpture from fallax Perkins. Length 2.5-2.75 mm. Black 

 except tips of coxie, trochanters, generally tibiae and tarsi, basal three to four 

 antennal joints, and face below base of antenuce, which are testaceous. An- 

 tenuce twice length of head. Vertex of head flat; surface of head and prothorax 

 1. This tcr.'U'p las l)e('ii varioi'sly given the rank cf family (Dryinidce) antl siihfaniilv 

 {.\nteonince) by different writers. It is also included by some in the s'lperfamily Proctolnipnided 

 and bv ethers in the Vespoidea. 



March, 1921 



