122 
Psyche 
[December 
short oval, its surface incompletely but strongly areolated. 
Wings with numerous, rather long hairs (at least in sinen- 
sis) ; areolet of fore wing large, briefly petiolate or costal 
margin short; recurrent vein with a single fenestra, which 
is near its costal end. Legs rather slender, claws strongly 
pectinate, middle tibiae with two apical spurs. Abdomen not 
petiolate, apical segments swollen and turned downward ; 
spiracles of first segment round, slightly anterior to the mid- 
dle of the segment, the dorsal profile of which is strongly 
angulate about the middle ; first three or four abdominal ter- 
ga with two or three conspicuous, longitudinal, middorsal, 
parallel or nearly parallel carinae ; segments two, three, and 
four broader than long; sixth tergite very large, bulbous, 
forming the rounded apex of the abdomen ; ovipositor slightly 
exerted. 
Genotype: Cerataspis clavata Uchida, by original desig- 
nation. 
Key to the species of Acerataspis 
1. First three abdominal tergites with two, parallel, longitudinal, dorsal 
cariiue. — _ , —sinensis 
First three tergites, and sometimes the base of the fourth as well, 
with three parallel, longitudinal, dorsal carinse.l 2 
2. Fourth abdominal tergite with longitudinal, dorsal carinse on basal 
half ; first tergite with apical angles yellow, and tergites two, 
three, and five in large part yellow. formosana 
Fourth abdominal tergite without longitudinal carinae ; fourth ab- 
dominal tergite in large part yellow, fifth yellow on posterior mar- 
gin, others black. , clavata 
Acerataspis clavata (Uchida) 
Cerataspis clavata Uchida, 1934, Trans. Sapporo Nat. 
Hist. Soc., 13 : 276 
Acerataspis clavata Uchida, 1934, Ins. Matsumurana, 9: 
23 
Type from Hikosan, Kiushu, Japan, in the Entomological 
Institute of the Hokkaido Imperial University. The species 
is also known from Tosa, Shikoku, Japan. 
Acerataspis formosana Cushman 
Acerataspis formosana Cushman, 1937, Arb. u. morph, u. 
tax. Ent. Berlin-Dahlem, 4 : 291 
