130 BULLETIN" 66, UNITED STATES NATIONAL MUSEUM. 



often darker; ventral surface honey yellow; sexual organs pale yellow. Wings stout, 

 subhyaline, the veins very strong and dark, the wing being fuscous along the margins 

 of the veins, so that they appear rather wide capital. Subcostal (radial) nervure 

 interrupted slightly before the middle; costal margin infuscated on basal two-thirds. 

 Legs grayish luteous, darkened on upper side of femora and tibiae and especially so 

 on the tarsi. 



Female. — Length 6.25-9 mm. Head (cephalothorax) above orange, irregularly 

 blackened on posterior half. The black portion emarginate in front at the middle 

 and not extending so far forward on the sides, so that the black extends forward as a 

 projection on each side of the middle. Anterior half of thorax (abdomen) fuscous or 

 piceous, with black wrinkles on the sides. Dorsal abdominal stripe usually quite 

 dark in front and fading out posteriorly, sometimes obsolete. Genital pores distinctly 

 visible externally. 



About a dozen males, numerous male pupae and over 80 females collected by Dr. 

 W. M. Wheeler at Colebrook, * lonnecticut, during the month of August (Brues, 1903). 



7. ACROSCHISMUS BOWDITCHI, new species. 



Xenos peckil Bowditch, 1903. 



Acroschismas bowditchi Pierce (Dury, 1906). 



Host. — Polistes pallipes Lepeletier, Marion, Massachusetts, Sep- 

 tember 2-12, 1902, (Fred C. Bowditch, collector); Cincinnati, Ohio, 

 June 15-September 22, (Charles Dury, Miss Annette F. Braun, col- 

 lectors) (pi. 7, figs. 2, G, 11; pi. 9, fig. 1). 



Male. — Length 3.25 mm. Antennae light brown; mandibles 

 brown; eyes black; wings with costal margin brown; legs lighter; 

 cedeagus clear yellowish. Antennae longer than breadth of head, 

 very sensitive, pubescent. Maxillae light brown, pubescent. Man- 

 dibles ensiform, curved near base, longer than maxillae. Mesostig- 

 matal lobe present. OEdeagus reflexed, broadly rounded at thickest 

 point above, apex turned almost at a right angle. 



Female. — Length of cephalothorax 1.03 mm., breadth at spiracles 

 1.40 mm., breadth at base of head 1.12 mm., distance between man- 

 dibles at base 0.29 mm. Cephalothorax light brown with a dark- 

 brown band at base ; slightly broader than long ; margin very convex 

 from base to spiracles, almost straight thence to point opposite base 

 of mandibles, apically broadly convex-angulate ; spiracles not laterally 

 prominent; mandibles distant from lateral margins of head, oblong- 

 quadrate, with large outward curved tooth on inner angles. 



Type.— Cat. No. 10117, U.S.N.M. 



Named in honor of Mr. Fred C. Bowditch, who collected the types, 

 in return for his courtesies in assisting the writer with material. 



8. ACROSCHISMUS HUNTERI, new species. 



Host. — Polistes, new species, near minor Beauvais; Victoria, Texas, 

 September 25, 1906, J. C. Crawford, collector; June 27, 1906, C. R. 

 Jones, collector (pi. 7, fig. 10; pi. 9, fig. 4). 



Male. — Length 4 mm. The color may not be satisfactorily 

 described, as the specimen was extracted from its puparium. Anten- 



