298 Mr. Gib 5 . Arrow’s List of 
vexus, capite pronotoque ubique fortiter punctatis, hoc parum 
convexo, lateraliter paulo excavato, marginibus bene elevatis, 
elytris punctato-striatis, interstitiis subtiliter punctulatis; pro- 
sterno antice producto, acuminato, striis lateralibus antice abbre- 
viatis, mesosterno brevissimo, linea arcuata transversa inciso, 
metasterno fortiter punctato, segmento ventrali basali utrinque 
linea brevi inciso. 
Long. 7-5—9 mm.; lat. max. 3-5—4-5 mm. 
Laos: Luang Prabang (March, April). 
This closely resembles A. luniferus Guér. It is a little 
larger, with the juxta-scutellar spot detached, the humeral 
one united to the lateral border but not elongate, and 
an additional postmedian red fascia, which reaches the 
sutural margin and almost attains the external margin. 
The prosternum is sharply produced in front, the meso- 
sternum is very short and transverse and has a complete 
semicircular stria, the prosternum is coarsely punctured 
at the sides, the metasternum strongly and evenly punc- 
tured everywhere, the abdomen closely punctured, the 
basal segment with short straight coxal Imes. The pro- 
notum is flattened at the sides, strongly punctured, with 
sharply raised lateral margins. 
34, Aulacochilus laoticus, sp. n. 
Niger, singulo elytro fascia posthumerali subcruciformi fere ad 
marginem anticam attingenti et infra humerum paulo producto 
fasciaque anteapicali minore transversa medio constricta rufis 
ornato; oblongo-ovatus, convexus, haud nitidus, capite prono- 
toque ubique fortiter punctatis, hoc convexo, marginibus lateralibus 
bene elevatis, angulis obtusis, elytris striatopunctatis, interstitiis 
subtiliter punctulatis; prosterno haud producto aut elevato, stria 
integra antice et lateraliter inciso, mesosterno brevi, stria arcuata 
impresso, metasterni medio modice punctato, abdominis segmento 
basali linea longa angulata versus Jatera producta utrinque inciso. 
Long. 8-5—9 mm.; lat. max. 4 mm. 
Laos: Xieng Khouang (April), Luang Prabang, Ban 
Nam Mo (April). 
Closely related to A. sternalis. The ground-colour is 
black without blue tinge, the juxta-scutellar black spot 
is united with the sutural border, and the anteapical red 
patch is placed farther back and is very short. The pro- 
notum is more convex, the prosternum has no process in 
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