254 Revision of the Bombylid Genus Aphoebantus. 



break very easily, but cannot be shipped any reasonable distance 

 without damage. 



Proeparturiens or Dwarf Prolific: — A choice French variety 

 that has proved itself to be worthy of cultivation in California. It 

 is not truly what its name implies, not being a regular dwarf nor 

 such an early bearer, but the fruit is of an excellent quality and 

 is always in demand where it is known. 



Persian Walnut or Kaghazi: — Is very much larger than the 

 ordinary kinds and thin shelled. The tree is late in blooming and 

 therefore is especially good for places that are in danger of frosts. 



There are a few other varieties that will no doubt prove valua- 

 ble in time, but are not worth while describing at present. 



The walnut tree is usually headed at a height of six to eight 

 feet, and requires considerable attention in the way of forming a 

 head for the first three or four years. The tree is naturally of 

 spreading habit but if it is trained with an upward tendency more 

 strength can be secured. L. C. Cummins. 



REVISION OF THE BOMBYLID GENUS APHOEBANTUS. 



In the May number of the Canadian Entomologist for the year 

 1886 I gave descriptions of all the species of Aphoebantus (five in 

 number) then known to occur in North America. Since the publica- 

 tion of that paper the Baron Osten Sacken has described six new- 

 species from this region, three of which occur in the United States 

 (Biologia Centrali Americana, Part Diptera). In Southern Cali- 

 fornia I have collected specimens belonging to twelve as yet unde- 

 scribed species, making a total of twenty-three species now known 

 to occur in this country. The following table will aid in identifying 

 the species which occur in the United States. Osten Sacken's Aphoe- 

 bantus rattus from Texas is unknown to me in nature, and I have 

 given it a place in the accompanying table in accordance with his 

 published description ; all the other species of this table are repre- 

 sented in my collection. I have included in this table my Eucessia 

 rubens, which might be mistaken for an Aphoebantus, although 

 lacking the long, style-like prolongation of the third antennal joint: 



1. Ground color of the abdomen black 2 



Ground color of the abdomen yellow 13 



2. Thorax with two, abdomen with one white tomentose dorsal 



vittae ; pile and tomentum of the face white ; styliform por- 

 tion of third antennal joint once and a fourth times as long 



as the thickened basal part vittatus Coq. 



Thorax and abdomen destitute of white tomentose dorsal 

 vittae 3 



