116 E. T. ckEssoi^. 



Ilah. — Costa Rica, (Mr. W. M. G-abb). One specimen. This some- 

 what resembles lepidum in ornamentation and in the shape of the last 

 dorsal segment of the abdomen. 



Anthidium mexicaiium.— 9 • — Black ; head and thorax densely punc- 

 tured, opaque, clothed with a short pale glittering pubescence, dense on sides 

 of face and of metathorax; spot on each side of face, narrow line on posterior 

 margin of head above, and a narrow interrupted line on posterior margin of 

 scutellum, dull yellow; antennae tinged with ferruginous at base and beneath; 

 tubercles transverse and carinate anteriorly; wings fuscous, darker on costal 

 margin; legs with pale pubescence, anterior pair brown; abdomen convex, 

 shining, finely and sparsely punctured; a transverse mark on each side of first 

 segment pointed within, and a broad band on middle of segments 3 — 6 abbrevi- 

 ated laterally, all orange-yellow; ventral scopa whitish. Length .30 inch. 



% . — Clypeus, anterior orbits broad on sides of face, spot at base of mandi- 

 bles, line on scape beneath, and sometimes an interrupted line on anterior 

 margin of mesothorax, yellow; tarsi fringed with long white pubescence, 

 anterior tibiae fulvous in front, base of all the tarsi more or less yellow; apical 

 segment of abdomen broadly rounded behind, the margin slightly recurved 

 and testaceous; otherwise as in 9- 



Hah. — Mexico, (Sumichrast). Ten specimens. 



Anthidinin apicale.^9- — Short, broad, very robust, black, opaque, 

 densely and finely punctured; vertex with a patch of short, dense fuscous 

 pubescence, otherwise the pubescence is pale; spot on each side of face and 

 line on posterior margin of head above, yellow; mesothorax with a short 

 appressed golden-ochraceous pile; scutellum broadly truncate behind, the 

 margin crenulated, more coarsely sculptured than remainder of thorax; dot 

 above tegulse, posterior margin of scutellum and dot on the carinate tubercles, 

 yellow; tegulse fulvous, yellow in front; wings fuscous at tip, yellow on costal 

 margin; legs clothed with pale pubescence, the knees more or less and stripe 

 on middle tibise before, yellow; abdomen nearly globose, finely and densely 

 punctured covered with a short, pale sericeous pile; a broad uninterrupted 

 orange-yellow band near apex of segments 3—5, base of sixth segment yellow; 

 ventral scopa yellowish. Length .30 inch. 



%. — Clypeus, sides of face, and large spot on mandibles, yellow; sixth 

 segment of abdomen yellow with two fuscous spots, apical segment broadly 

 rounded at tip, yellow, black at base, lateral apical corners of segments 3 — 6 

 lobate; otherwise as in 9- 



Hab. — Mexico, (Sumichrast). Three specimens. This and the two 

 following species are closely related and have a short broad, robust 

 form somewhat like that of perplexum and notatum. 



Aiitliidiuin biTittalnm. — % . — Form of apicale ; black, opaque, densely 

 punctured, clothed with a short pubescence, which is fuscous on vertex, dull 

 ochraceous on mesothorax and pale elsewhere; clypeus except base, spot on 

 mandibles, narrow anterior orbits, two lines between antennse, and a line on 

 posterior margin of head sometimes interrupted, yellow; the front between 

 antennse prominent and carinate laterally; antennse tinged with ferruginous 

 at base; scutellum coarsely punctured, rounded behind; two stripes on meso- 



