156 
Psyche 
[Sept. 
have been Lomamyia, but the specimen is not now avail- 
able. 
Although the larval feeding mechanism of Lomamyia 
is specialized to function almost identically like that of 
Nallachius, the smaller legs of the mature Lamamyia 
larva, and the fact that the front leg and claws equal 
the middle ones, suggest somewhat different habits. Dr. 
Anderson consistently sought wood-inhabiting beetle 
larvae in his collecting, and five times he secured Nal- 
lachius larvae or pupae, never Lomamyia. This fact sug- 
gests that Lomamyia larvae occupy a different habitat. 
The eggs of the Australian Spermophorella are borne 
on separate stalks, according to Tillyard (1916), and the 
first instars are much like those of Lomamyia. He re- 
ported that the larvae walked with the combined use of 
legs and anal sucker, moving with a looping action similar 
to that of Geometridae. 
Principal larval characters distinguishing Lomamyia and Nallachius 
Lomamyia 
1. Penultimate antennal segment 
Avithout subapical peg. 
2. Antennae and palpi 3-segmented, 
no supernumerary segments. 
3. Maxilla much larger than man- 
dible, dominant both ventrally 
and dorsally. 
4. Antennae borne at lateral ex- 
tremities of head. 
5. Anterior margin of front broadly 
rounded. 
6. A single simple eye at each side 
of head. 
7. Several ventral sclerites in region 
of mentum. 
8. Prementum apically entire. 
9. Laterodorsal thoracic sclerites 
well developed. 
10. Legs much reduced in proportion 
to abdomen (mature larva). 
11. Front legs equal to middle (and 
hind?) legs. 
12. Claws equal. 
13. Tarsal claws with a ventral 
‘ 1 sole. ’ ’ 
14. Tarso-tibial joint mobile; tro- 
chanter distinct. 
Nallachius 
1. Subapical peg present. 
2. More than 3-segmented, super- 
numerary segments present. 
3. Mandible and maxilla subequal; 
mandible conspicuous dorsally, 
maxilla ventrally. 
4. Antennal bases much less re- 
mote. 
5. Anterior margin acute. 
6. Tavo simple eyes at each side. 
7. Ventral sclerites of head reduced 
in number. 
8. Prementum apically divided. 
9. Absent or indistinct. 
10. Legs only moderately reduced in 
proportion to abdomen. 
11. Front legs larger than middle 
and hind legs. 
12. Claws unequal, especially those 
of front legs. 
13. No “sole” present. 
14. Tarso-tibial joint apparently not 
mobile; trochanter poorly de- 
veloped. 
