1911] Ewing — Predaceoiis and Parasitic Acarina 89 



Gen. Syringophilus Holler. (Cheyletidse.) 

 Syringophilus elongatus sp. nov. 



Hyaline: body enormously drawn out, about five times as long as broad* 

 Integument striated except for the middle region of the cephalothorax. 



Cephalothorax, including beak, almost as long as abdomen; beak conical; 

 palpi short and extending to tip of beak where the small lance-like mandibles 

 may be seen projecting forward. On the dorsal surface of the beak is a 

 prominent pair of bristles about two-thirds as long as the beak itself. Dorsal 

 surface of cephalothorax proper with at least six pairs of enormous, long 

 bristles which extend about two-thirds the distance to the tip of abdomen. 



Abdomen very long, cylindrical, and with about four pairs of large, dorsal 

 bristles and two pairs of smaller terminal bristles. Posterior end of abdomen 

 emarginate. 



Legs subequal; first pair extending to tip of beak, posterior pair reaching 

 about one-half the distance from the point of their origin to the tip of the 

 abdomen. Segments of the legs subequal in width, the distal segment in each 

 case with a large, bifid appendage, the parts of which are themselves each 

 resolved into several elements. Tarsal claws of front group of legs stout, and 

 strongly curved. 



Length, 1.00 mm.; breadth, 0.18 mm. 



From red winged blackbird, Agelaius phceniceus. Described 

 from about half a dozen specimens. 



Gen. Stigtnaeodes Canestrini. (Tetranychidse.) 

 Stigmaeodes cinctus sp. nov. (PI. 7, fig. 2). 



Body and appendages of a light cardinal color; in the region of the eyes 

 color much darker. Body with pronounced constriction at its middle, giving 

 it the appearance of being girded and compressed with a belt, hence the name 

 cinctus. 



Cephalothorax as long and as broad as the abdomen. Mouth-parts rather 

 small; beak extending about half way to the tips of the front legs. Palpi very 

 small and just reaching the tip of the beak; distal segment bearing a spine-like 

 bristle longer than the segment itself. A double pair of lateral eyes present 

 at about half the distance from the anterior to the posterior end of the cephalo- 

 thorax. 



Abdomen conical in shape and tipped at the end with three pairs of simple, 

 curved bristles, the inner pair being about two-thirds as long as the others. 

 Abdomen broadest slightly in front of the third pair of legs. It bears dorsally 

 only a few inconspicuous hairs. 



Front group of legs situated far distant from the hind group; all the legs 

 subequal; posterior pair extending about one-third their length beyond the 

 hind margin of the abdomen. Each tarsus bears at its tip two small, curved 

 claws and a much larger bifid, pectinated adhering organ. 



Length, 0.40 mm.; breadth, 0.12 mm. 



