NORTH AMEKICAN APTERA. 151 



Fhalaiigodes spiiiifera Pack. 

 Southern Florida. 



Scotolemou Lucas. 



Phalangodes Simou et Packard (in part). 

 Erebomaster Cope. 

 Ptychosoma Sorer. 



Scotolenioii flavesceiis Cope. 



This was described from Wyandotte Cave ; it has since been found 

 in caves in Virginia and Kentucky. What I consider as the same 

 species occurs under stones on the Virginia shore of the Potomac 

 near Washington, D. C This out-of-door form does not differ much 

 from cave specimens ; there are three quite large projections near 

 the base of the second joint of palpi. All the forms vary in the 

 number of tarsal joints. Some cave specimens are blind, and form 

 the variety caecum Pack. ; others from Weyer's Cave are darker and 

 spotted, and form the variety weyerensk Pack. 



SITAL.CES Simon. 

 This genus is given by Simon to two species from the Isle of Re- 

 union ; a form from California seems to belong to the genus, or else 

 it will form a new genus closely allied to Sitalces. 



$iitalces calirornica n. sp. Length 2 mm. — Color yellow, venter paler, 

 legs whitish towards the tips. Body oval, truncated in front, rounded behind; 

 cephalothorax about twice as wide as long, the suture separating it from the ab- 

 domen obsolete at the sides, the surface finely granulated, with a few larger 

 granules near the meson and some on the posterior sides. Eye-tubercle large, 

 arising from the anterior margin, about one-half the length of the cephalothorax, 

 much roughened and finely granulated ; eyes near the base of the tubercle. An- 

 terior segments of the abdomen united, finely granulated and with about six 

 transverse rows of larger granules or tubercles, somewhat irregular on the ante- 

 rior sides, the posterior rows larger than the anterior; beyond are three trans- 

 verse scutfe or segments, connected by a yellowish membrane ; these have a row 

 of tubercles on their posterior margin, and the last scuta also a row on its ante- 

 rior margin ; seven finely granulated scutse on the venter. Palpi with the first 

 joint short : second more than twice as long, with three projections below, rough- 

 ened above; third short, gradually enlarged from base to tip, with two projections 

 above and one below ; fourth longer than the third, with two large projections 

 below and several short ones above; fifth joint shorter and smaller than the 

 fourth, about as long as the third, with two projections below, the claw at tip 

 long and stout; all the projections tipped with stiff hairs as usual. Legs short, 

 finely roughened with many short hairs. 



One specimen has a large spine on the hind trochanter. Southern 

 California. 



TEANS. AM. ENT. SOC. XX. JUNE, 1893. 



