NEW PAEASITIC HYMENOPTERA OF THE SUBFAMILY 

 ANTEONINAE FROM THE AMERICAS 



By F. A. Fenton 

 Entomologist, United States Bureau of Entomology, Florence, South Carolinai 



In the following paper are presented descriptions of 23 new 

 species and one new variety of parasitic Hymenoptera of the sub- 

 family Anteoninae. Most of the material studied was from the 

 miscellaneous collection of the U. S. National Museum, and was 

 collected in the New World. Reference to Kieiffer's keys is made in 

 many places throughout this paper. The keys referred to are those 

 published in Das Tierreich, family Bethylidae (vol. 41, 1914). 



LESTODRYINUS DICHROUS. new species 



Because the parapsidal furrows are greatly reduced, this species 

 traces to Neodryinus in Kieffer's key. It is placed in the genus 

 Lestodryinus because it agrees with all the characters of this genus 

 except the reduced parapsidal furrows. 



FeTnale. — Length 6 mm. Color testaceous and black as noted 

 below. Head testaceous, broader than long (13:7) ; vertex concave, 

 surface with fine longitudinal striations; lateral ocelli located far 

 back on vertex almost to occiput and are approximate, anterior 

 ocellus distant from these, being near frons; head not produced 

 beyond the eyes; occiput truncate; antennae testaceous, third joint 

 unusually long, being more than twice length of scape and second 

 together, and almost three times length of fourth ; fifth same length as 

 fourth, thickened distally ; sixth to ninth each somewhat shorter than 

 preceding; tenth not quite twice length of ninth. Prothorax testa- 

 ceous, shining with series of fine transverse striations and a fine thick 

 whitish pubescence; mesoscutum and scutellum black, coarsely rugu- 

 lose with distinct short white pubescence; postscutellum black with 

 same sculpturing as scutellum, except a smooth area on the disk; 

 legs testaceous, except hind coxae and small areas on middle and 

 hind femora, which are black; chela with median arm extending to 

 second tarsal joint, lamellate at tip and a double row of lamellae 

 extending from here to articular cavity, claw nearly parallel sided 

 and straight except at the tip where it is sharply bent, provided with 

 a single row of toothlike lamellae from near articulation with median 

 arm to subapical tooth ; wings with subcostal, median and submedian 

 cells, bifasciate, tiie larger band extending transversely across the 



No. 2704.— Proceedings u. S. National Museum, Vol. 72, Art. 8. 



55220—27 1 



