540 PROCEEDINGS OF THE NATIONAL MUSEUM vol. loi 



described) . Vertex dorsum broad scaled (may be narrow scales along 

 eye margin and on nape, however) . Ppn bare, or nearly so. Para- 

 tergite and postspiracular area without scales. 



Supplementary churacters. — Black and white species. Scutum 

 with at least anterior one-half covered with white scales; this may be 

 I)artially or completely divided medially by dark scales (in idjenensis 

 the pale scutal scales are pale golden) . Scutellar scales broad. Sub- 

 spiracular area without scales. Preala scaled below knob (scales 

 absent in dorseyi). No femora knee spots. Larval head hair 6 

 anterior to .5, 4 between bases of 6, 5 and 7 approximately in line. 

 Comb teeth few, in a line. Larval habitat : Tree holes, bamboos, and 

 artificial containers. The larvae of idjenensis and pseudoniveus are 

 undescribed. 



Included species. — A. alholateralis (Theobald), alboniveus Bar- 

 raud, dorseyi Knight, idjenensis Brug, lacfeus Knight, laoagensls 

 Knight, niveoides Barraud, niveus (Ludlow) , n. nipponicus LaCasse 

 and Yamaguti, novoniveus Barraud, pseudoniveus Theobald, and 

 saperoi Knight. 



Discussion. — This subgroup, which is probably a superspecies, has 

 been treated by Knight (1946). 



Subsrroap II. DISSIMILIS 



Deiinition. — Oriental. Basistyle without a specialized scale tuft 

 (males of d. var. harwari and leucomeres unknown). Claspette fila- 

 ment needlelike. Male palpi with a few hairs on apices of III-V, 

 none or very few along IV-V (the palpi of dissitnilis is as in the niveus 

 group, however). Female tori bare (female of leucopleunis un- 

 described) . Vertex dorsum broad scaled (may be narrow scales along 

 eye margin and on nape, however). Ppn with broad, flat, silvery 

 scales. Postspiracular area without scales. Paratergite scaled. 



Supplementary characters. — Scutum clothed with black scales, 

 sometimes an anterior variable central area of golden scales present. 

 Scutellar scales broad. Subspiracular and prealar areas without 

 scales. Some femora with anterior white just before apex; mid- 

 femora with an anterior median silvery mark. Larval head hairs 4, 

 6, and 7 approximately in line, 5 posterior to and near to 6. Comb 

 scales in a patch. Larval habitat : Tree holes, bamboos, and artificial 

 containers. Larvae of d. var. ka/rwari and leucomeres unknown. 



Included species. — A. dissimilis (Leicester), d. var. JcarwaH (Bar- 

 raud), leucomeres (Giles), leucopleurus Rozeboom, lusonensis Roze- 

 boom, and paradissimilis Kozeboom. 



Discwision. — The species of this subgroup constitute a well-delim- 

 ited superspecies. Rozeboom (1946) has treated this subgroup fully. 



