Endomychid Coleoptera of Indo-China. 325 
lateraliter subtiliter sericeo, medio nudo, apice haud profunde 
€Xciso : 
2, elytris haud productis, abdominis subtus apice haud exciso. 
Long. 11°5 mm.; lat. max. 6 mm. 
Inpo-Curna, Laos: Luang Prabang, Lat Ham (R. Vitalis 
de Salvaza, March). 
This species can only be distinguished from the common 
E. quadriguttatus, Ill., by a careful examination of the 
secondary sexual characters. In size, shape, and coloration 
it agrees exactly with it, but the male has the front tibia a 
little bisinuated, with the tooth stouter and more promi- 
nent, the abdomen is without the pad of dense erect hairs 
occupying the middle of the two terminal segments beneath, 
and the last ventral segment is much less deeply emarginate 
at the apex. The female has the extremities of the elytra 
less produced, and the apex of the abdomen is without the 
triangular excision found in that of EL. guadriguttatus. There 
is an even closer relationship between this species and the 
Malayan H. sybarita, Gerst., but our form is a little smaller, 
less glossy above, and decorated with smaller spots, the 
posterior ones being separated by an interval about twice 
the diameter of each, whereas in L. sybarita it is of about 
equal diameter. The male has the front tibia more 
slender, the tooth less stout, and not followed by a distinct 
emargination. 
EHumorphus calcaratus, sp. n. 
Niger vel violaceo-niger, nitidus, elytris quadripustulatis, maculis 
parvis, flavis, rotundis, prima post-humerali aliaque ante- 
apicali; parum elongatus aut convexus, corpore supra minute 
punctato; prothorace transyerso, lateribus leviter bisinuatis, 
angulis posticis vix acutis, haud productis, foveis basalibus bene 
impressis, fere ad medium attingentibus, elytris angustissime 
marginatis, haud productis; antennis sat gracilibus, clava 
angusta : 
3, tibia antica dente tuberculiformi haud acuminato armata, tibia 
postica apice lamina ciliata interna instructa, abdominis seg- 
mentis subtus medio erecte ciliatis, ultimo apice acute inciso. 
Long. 7 mm.; lat.:max. 4 mm, 
Inpo-Cu1va: Vien Poukha, Upper Mekong R. (May), 
Sala Pang Yok, Luang Prabang (March), Ban Sai, Xieng 
Khouang (Feb.). 
This species is small and compact in shape, entirely 
