174 



BULLETIN 140, UNITED STATES NATIONAL MUSEUM 



Male 10 to 15 mm. long by 300/* wide. Caudal alae (Fig. 244e) 

 long and narrow, the ventral surface covered with longitudinal rows 

 of scale-like cuticular flaps. The alae are figured as slightly asym- 

 metrical. Eleven pairs of caudal papillae arranged as follows: 4 

 pairs of preanal, 2 pairs of postanal pedunculated, and 5 pairs of 

 small sessile ventral papillae at the caudal extremity. In addition 

 a single or occasionally paired sessile papilla on the left side of 

 the anterior edge of cloacal aperture. Spicules unequal (fig. 244^) , 2 

 mm. and 440/* long. Gorgeret present, 140/* long. 



Female 15 to 30 mm. long by 400/* wide. Vulva not salient, an- 

 terior to middle of body. Ovejector short, claviform. Eggs 35 to 



Fig. 244. — Habbonema colaptes. a, Dorsal; b, lateral; c, front view op head; 



d. SPICULES AND GUBERNACULUM ; C, MALE TAIL ; f, FEMALE TAIL. AFTER WALTON, 

 1923 



40/* long by 25 to 30/* wide, in the morula stage of development when 

 oviposited. 



Life-history. — Unknown; probably involving insects as interme- 

 diate hosts. 



Distribution. — North America (United States (Monticello, Il- 

 linois)). 



HABRONEMA FICHEURI Seurat, 1916d 



Host. — Primary: Bubulcus lucidus; secondary; Unknown. 



Location. — Gizzard. 



Morphology. — Habronema (p. 172) :Body robust. No lateral alae. 

 Cuticle thick and heavily striated transversely. Two small precer- 

 vical symmetrical papillae and 2 intestinal papillae. Two large tri- 

 lobed lateral lips (fig. 245a), the median lobe with 3 teeth; dorsal 

 and ventral lips (fig. 2456) with keel-like projection. 



Male 8.4 mm. long by 336/* wide. Tail (fig. 245c) 120/* long. Two 

 long caudal alae, transversely striated. Ventral region of body also 

 transversely striated for 450/* posterior to cloacal aperture. Four 



