536 PROCEEDINGS OF THE NATIONAL IVIUSEUM vol. loi 



xipproximately basal one-half of hind femur creamy scaled anteriorly. 

 White band on midtarsal segment I at least one-third length of seg- 

 ment. Dark scales on abdomen, legs, et cetera, with purplish reflec- 

 tions. Head hair 6 of larva anterior to 5, 4 between bases of 6, 7 on a 

 level between those of 5 and G. Comb scales few, in a line. Ventral 

 brush borne on a modified sclerotized plate separate from the anal 

 plate. Larval habitat : tree holes. 



Included species. — A. auridorsimi Edwards and purpureus (Theo- 

 bald). 



Discussion. — The relationship of the two species included here 

 v/ould be somewhat in doa))t were it not for the marked similarity be- 

 tween the larvae. 



Subgroup V, SUBSEVIILIS 



Definition. — Oriental. Basistyle without a tuft of modified scales. 

 Clasi^ette filament needlelike. Male palpi with some hairs at the 

 apices of III-V, none or very few along IV and V. Vertex dorsum 

 broad scaled (female unknown) . Scutum all dark scaled. Ppn bare. 

 Tieither femora nor tibiae sprinkled with pale scales anteriorly. 

 Hind tarsi with the first four hind tarsal segments basally banded. 



Supplementary characters. — Scutellar scales broad. Larva unde- 

 scribed. 



Included species. — A. suhsimilis (Barraud). 



Discussion. — The only specimen that has been seen by us is the type, 

 find the pin has so obliterated the pleuron on this specimen that it is 

 impossible to determine which scale patches are present. 



Subgroup VI, ALBOANNULATUS, s. str. 



Definition. — ^Australasian. Basistyle without a tuft of specialized 

 scales (male of oocidentalis not specifically described). Claspette 

 filament slender bladelike in lateral view. Male palpi as in Sub- 

 group I. Female tori with or without scales. Vertex dorsum narrow 

 scaled. Scutal scaling various, often with indefinite lines or patches, 

 not as in Subgroup II. Ppn with narrow-curved and/or flat scales. 

 Postspiracular area with or without scales. Paratergite scaled. In 

 some species femora, and sometimes the tibiae also, with anterior sur- 

 face sprinkled with pale scales. Hind tarsi with segments I-IV or 

 V basally banded (the bands not extending onto the apices of 

 preceding segments). 



Supplementary chara/cters. — Scutellum with narrow curved scales. 

 Subspiracular area scaled. Larval head hairs 6 and 7 approxi- 

 mately in a horizontal line, 5 slightly caudad and mesad to 6, 4 mesad 

 to 5. Comb scales numerous and in a f latch. Larval habitat : Fresh- 



