216 ENTOMOLOGICAL NEWS. [November, 



This pretty tree is named after Mrs. Wooton, who accompanied 

 her husband on his recent collecting trip, and greatly assisted in 

 getting together a set of New Mexico plants which will do much 

 to advance the knowledge of the botany of this region. When 

 P. htleola was discovered it seemed a remarkable instance of 

 departure from the normal types of bee-coloration for protective 

 purposes. The finding of P, beata gave us a second instance 

 of the same sort, and now in P. wo atones we have a third. It 

 remains, however, to discover a pure white species visiting white 

 flowers ! 



I notice (ENT. NEWS, 1897, p. 172,) that Mr. Robertson 

 would refer my Panurgus lustrans to Halictus. I may as well 

 publish the generic or subgeneric name, Hemihalidus, which I 

 have had in MS for a long time. Hemihalictus has about the 

 same relationship to Halictus that Mr. Robertson's Parandrena 

 has to Andrena. In some of its characters it is like Chilicola, 

 Spinola, but it is evidently distinct. 



-o- 



A NEW PODURAN OF THE GENUS GNATHOCEPHALUS. 



By F. L. HARVEY. 



Generic characters as given by Mr. Macgillivray. 



Gnathocephalus aureo-fasciatus sp. nov. Body robust, broadest behind, 

 pale purple, with the mesothorax and the last two abdominal segments 

 pale orange, ornamented with beautiful tubercles, that are obtuse conical, 

 becoming longer and more pointed on the posterior segments and armed 

 with scattering long bowed, blunt pointed hairs, that curve backwards and 

 are more abundant on the posterior segments ; head small, nearly round, 

 narrower than the first abdominal segment, depressed at the sides, center 

 bearing a raised pentagonal plate, one of the angles of which points 

 between the antennae, the opposite side concave ; eye spots dark, extend- 

 ing tlie whole length of the lateral sides of the pentagonal plate and 

 located upon its sloping edge ; back of the central plate on the head is 

 an oblong transverse ridge or plate extending to the first segment ; 

 buccal cone stout, once and a half as long as the first antennal segment ; 

 antenna.- short, stout, segments nearly equal, the first broadest, second 

 slightly shorter with swollen sides, third and fourth about the saint- 

 width, cylindrical, the terminal one slightly longer than the other seg- 

 ments and obtusely rounded at the end, all segments armed with 

 tubercles and hairs and curved outwards, suture between third and 

 fourth segments obscure ; under side of abdomen and legs lighter, the 

 under side of mesothorax, the second pair of legs and the ventral of the 

 last two segments paler than the other portions, to agree with the corres- 

 ponding lighter dorsal parts ; legs stout, short, no tenent hairs, armed 



