SUPPLEMENT TO PSYCHE. 



[July 1S95. 



would have to be altered a little. Nothing 

 certain can be said, however, until the 

 embryonic larva of quadrifasciatum has 

 been seen. It is to be observed that L. 

 robiniarum Douglas, found at Las Cruces, 

 N. M., on Robinia psendacacia, has nothing 

 whatever to do with qiiadi-ifasciatnm, being 

 a Eulecanmm. It has doubtless been intro- 

 duced into New Mexico from the Eastern 

 States, though not hitherto recognized there 

 by entomologists. 



Diaspis toumeyi, n. sp. — $ scales circulai' 

 or nearly so, moderately' convex, about 2 mm. 

 diameter, white tinged with yellowish or 

 brown, exuviae sublateral, first skin exposed, 

 pale straw; second skin, exposed by rubbing, 

 orange. Removed from the twig, the scale 

 leaves a white mark. 



$ scale as usual in genus, white, obscurely 

 unicarinate, with the very pale yellowish 

 exuviae at one end. 



? (boiled in soda) very pale brownish 

 (when dry, not boiled, dark brown). Rows 

 of transversely oval pores, as usual in genus. 

 Anal orifice small, subcircular, not very far 

 from hind end. 5 groups of ventral glands, 

 median round, caudolateral oval, cephalo- 

 lateral long-oval. Caudolateral witli 25 



orifices, caphaluteral 30, median 24. Median 

 lobes extremely large, separated by a wide 

 interval in which is a pair of small spines, 

 strongly divergent, pale brown, rounded, 

 finely crenate. Remaining lobes practically 

 obsolete. Following first lobe on margin is 

 a low obscurely quadrifid structure repre- 

 senting the second lobe, then a pair of 

 short broad cone like plates, then a slight 

 prominence, then a conical plate, then a 

 spine, then a conical plate, then a short 

 interval, then two small conical plates, then 

 an almost obsolete plate, then a pyramidal 

 small blunt brownish projection apparently 

 representing a lobe, then two small plates, 

 then a spine, then three large conical plates 

 separated by rather wide intervals. 



Hab. Prof. Toumey, sending specimens, 

 writes on April 29, 1S95 : '■ While at Mari- 

 copa a few days ago, I drove to the mountains 

 some 10 miles south, and on the way found 

 an interesting shrub which grows here to 

 the size of a tree; I refer to Holacantha 

 emoryi, which has not before been reported 

 north of Mexico. In many places this plant 

 was entirely covered " b\' Duispis touuieyi. 

 The species is allied to D. cacti in some 

 respects, but very distinct. 



II. New North American Bees. 



BV T. D. A. COCKERELL. 



Andrena salicinella, n. sp. — $ about 8 

 mm. long, black, with thin white pubescence, 

 abdomen with hair-bands. 



Head somewhat broader than long, vertex 

 sub-depressed; clypeus prominent, shining, 

 strongly and rather closely punctate, its disc 

 almost baie. Vertex minutely roughened, 

 more or less aciculated. A very distinct but 

 short broad band of appressed snow-v\liite 

 pubescence before each anterior orbit. Fla- 

 gellum slightly tinged with brown towards 

 end. Thorax rather small: mesothorax with 

 large, sparse, distinct punctures. Scutellum 



with similar punctures. Metathorax finely 

 roughened, enclosed area sculjjtured like the 

 part bevond, enclosure bounded by a very 

 obscure rim. Pleura with long white hairs, 

 not dense. Tegulae testaceous, moderately 

 shining. Wings distinctly yellowish, ner- 

 vures and stigma honey-yellow. Legs with 

 pale hairs: femora and tibiae piceous-black, 

 all tarsi clear feri'uginous. 



Abdomen shining, its surface minutely 

 tessellate, inipunctate. Apical margins of 

 segments narrowly testaceous, segments 

 2 to 5 with apical bands of dirty-white hairs, 



