1969] 
Darlington — Flightless Dolichoctis 
389 
posteriorly; and in my (1968, 126) key to New Guinean Doli- 
choct'iSj it runs to couplet 2 but has the prothorax much narrower 
than striata Schmidt-Goebel and the elytra much wider and without 
the maculation of microdera Andrewes. 
Atrophy of wings and loss of prothoracic setae suggest that this 
insect, although derived from a primarily arboreal, winged, mainly 
lowland stock, is adapted to a mountain habitat, perhaps to living 
in leaf litter on the ground in montane rain forest. 
References 
Darlington, P. J., Jr. 
1936. Variation and atrophy of flying wings of some carabid beetles. 
Ann. Ent. Soc. America 29(1): 136-179. 
1943. Carabidae of mountains and islands: data on the evolution of 
isolated faunas, and on atrophy of wings. Ecological Mono- 
graphs 13(1) : 37-61. 
1968. The carabid beetles of New Guinea. Part III. Harpalinae (con- 
tinued) : Perigonini to Pseudomarphini. Bull. Mus. Comp. Zool. 
137(1) : 1-253. 
Jedlicka, Arnost. 
1963. Monographie der Truncatipennen aus Ostasien. Ent. Abhand- 
lungen 28 (7): 269-579. 
