Figures 1 and 2. Omophron luzonicus, n.sp. Figures 3 and 4. Siagona 
sinistra n.sp. 
whitish testaceous; below testaceous with a broad median brown 
area, from prosternum to 2nd ventral segment; appendages whitish 
testaceous; most of upper surface including elytral intervals with 
lightly impressed but distinct isodiametric microsculpture. Head: 
mandibles with upper edge of scrobe only moderately raised ; antennae 
with segment i with i seta, segments 3 and 4 with usual subapical 
setae but without extra setae on outer margins; clypeus bisetose, 
slightly or indistinctly margined, with suture rounded or subangulate; 
surface of head at sides and posteriorly moderately punctate, front 
nearly impunctate; subocular ridges present, space between ridge and 
eye rugose-punctate. Prothorax with pronotal disk slightly depressed 
basally, rather finely and sparsely punctate, a little more closely so 
anteriorly; lateral marginal channels rather narrow, not punctate; 
median line lightly impressed, slightly abbreviated at both ends. 
Elytra convex as usual; each with 15 moderately impressed, lightly 
punctate striae; striation almost entire except striae 2-3 and 7-8 
ending about 1/3 from apex (varying in exact length and connec- 
tions) ; stria 11 reaching to or within apical 1/4; intervals moderately 
convex, impunctate, but with microsculpture as described. Below: 
sterna and first 2 ventral segments with scattered punctures of mod- 
erate size; epipleurae not punctate; suture between prosternal and 
proepisternal processes (behind anterior coxae) usually not impressed; 
middle coxa with 1 seta, on inner side. Male with 2 basal segments 
each front tarsus and first segment middle tarsus slightly dilated, 
with sexual pubescence below ; copulatory organs as figured ( Fig. 2 ) . 
Length 6.06.5 mm - 
Remarks. I am unable to say from which Asiatic stock this species 
is derived, for its characters are mixed. In Banninger’s (1918) 
