120 E. T. CRESSON. 



white pubescence; anterior coxse each with a long black spine, their tarsi 

 whitish, dilated and fringed beneath with long white pubescence, first, second 

 and third joints prolonged and pointed at tip above, the process on first joint 

 grooved within and margined with fuscous pubescence, second joint within 

 with a black spot; intermediate and posterior tarsi long and slender; abdomen 

 elongate, sides subparallel, densely punctured, base and apex with a thin, rather 

 long, whitish pubescence, segments 1—5 with a narrow white subinarginal band 

 of white pubescence; sixth segment deeply excavated on the disk, the apex 

 transversely compressed, deeply notched medially and subserrate on each side. 

 Length .50 — .55 inch. 



? J, — Head subquadrate; sides of face, cheeks, prothorax, metathorax and 

 pleura clothed with griseous pubescence, mesothorax and scutellum almost 

 nude, having a few scattered short black hairs, longer on scutellum; wings 

 dark fuliginous at apex; legs slender, piceous or black, tarsi rufo-testaceous, 

 with yellowish pubescence ; abdomen with subparallel sides, segments 1 — 5 each 

 with a narrow fringe of dense white pubescence at apex; ventral scopa whitish, 

 apical segment clothed with short black hairs. Length .50 — .55 inch. 



Hah. — Del., N. C, Ga., Kans., Tex. Eight specimens. The S 

 specimens from Texas have the legs, except coxae, entirely brown- 

 ferruginous. 



This is closely allied to pollicaris Say, and pugnata Say {=: scrobi- 

 cidata Sm., disparilis Cress., liicrosa Cress.), and was mistaken by me 

 for the latter species in my list of Texan hymenoptera. It differs, 

 however, from both species by the less dilated anterior tarsi of % , the 

 lobate process being much smaller, and irom pollicaris by the inter- 

 mediate tarsi being slender and simple. The 9 of pugnata has the 

 head large and cubical, and the cheeks armed at base beneath with a 

 more or less large obtuse tooth, sometimes hidden by the pubescence, 

 thus escaping my notice in describing the single specimen from Texas ; 

 otherwise it closely resembles what is doubtingly described above as 

 the $ of Sayi; it varies greatly in size in both sexes. 



In my remarks on pollicaris Say, (Trans. Am. Ent. Soc. iv, p. 264), 

 the types have made me say exactly opposite to what was intended. 

 The sentence should read : " This may not be the true jjollicaris, as 

 Say, although mentioning the long, prominent, yellow scale-like process, 

 tipped with honey-yellow, at base of anterior tarsi, says nothing about 

 the intermediate legs being red," etc. 



Megachile fidelis. — 9 • — Black, opaque, very densely and finely punc- 

 tured; head subquadrate, the face and clypeus clothed with a long dense 

 yellowish pubescence, which on the cheeks is short and white and on vertex 

 sparing and black; clypeus with a stout, obtuse, transversely compressed, 

 incurved tooth on each side; mandibles rugose; mesothorax and scutellum 

 with a few scattering black hairs; prothorax, lateral margin of mesothorax, 

 sides of scutellum, metathorax and pleura laterally and beneath densely clothed 

 with a long griseous pubescence; tegulse piceous; wings fuscous, fuliginous on 



