THE CANADIAN ENTOMOLOGIST 253 



dog-ear marks, band like lateral face-marks (ending in point at 

 level of middle ocellus), entire occipital band going half-way down 

 cheeks, small spot on tubercles, lateral and anterior margins of 

 mesothorax (except a wide interval on anterior middle), axillje, 

 broad hind margin of scutellum, anterior and middle tibi?e and 

 basitarsi; in front, elongate basal and transverse apical mark on 

 hind tibiffi, hind basitarsi in front and spot on second tarsal joint, 

 oblique mark at extreme sides of second abdominal segment, and 

 all of the other segments except extreme base and translucent 

 reddish apical margin; mesopleura with large, distinctly separated 

 punctures; wings dilute fuliginous, apicostal region darker; first 

 three abdominal segments finely punctured, the others with large 

 punctures; no lateral spines; seventh segment very broadly rounded, 

 with a median pit. The anterior femora may be red above except 

 at base. 



9 .-^Similar, but clypeus black, mandibles with only a small, 

 yellow spot, no dog-ear marks, more red hair on scutellum, yellow 

 of legs reduced and more or less reddened, hind tibia? black ex- 

 cept a small basal spot, all the basitarsi black, anterior femora 

 with a yellowish-red band on apical half; yellow bands of abdomen 

 narrower, the fourth notched behind. Ventral scopa shining white. 



Hab. — Taboga Island, Panama, June 9 and 11, 1911, {A. 

 Busck); also one Feb. 19, 1912, (A. Busck). Related to //. aureo- 

 citictum and H. panamense, but easily separated by the yellow and 

 black legs and absence of discal stripes on mesothorax. From the 

 descriptions, it seems also to be somewhat allied to the Anthidium 

 mexicanum and A. agnatum of Cresson; these species have been 

 supposed to belong to Dianthidiiim, but the types should be ex- 

 amined to see if they are possibly Hypanthidium. 



Hypanthidium melanopterum, sp. n. 



9. — Length about 8 mm.; black and chrome yellow; yellow 

 markings as follows: lateral face-marks (consisting of a large patch 

 on each side of antennae, sending a narrow stripe upward along 

 orbits), entire occipital band going a little way down cheeks, narrow 

 anterolateral margins of mesothorax, rather narrow band border- 

 ing scutellum and axilla^, slightly broken band on first abdominal 

 segment, small mark on each side of second, entire bands on third 



