NEW PHYTOPHAGOUS COLEOPTERA 91 
thorax three times as broad as long, the sides very strongly 
rounded and narrowed in front, the anterior angles distinct 
but not produced, the posterior ones, obsolete, the posterior 
margin slightly widened towards the middle; surface entirely 
impunctate, rather convex; scutellum black; elytra very finely 
and rather closely punctured, without any basal depression , 
narrowed at the base and near the apices where the surface is 
strongly and rather suddenly deflexed; underside and legs 
fulyous, the apices of the tibiae and the tarsi stained with 
fuscous. 
Hab. Borneo, Sarawak (Doria and Beccari). 
In one specimen which seems to me to belong to the male 
sex, the elytra are more finely and scarcely visibly punctured; 
in the female there is an obsolete longitudinal groove parallel 
with the sides of the thorax at the surface of the latter. 
71. Monolepta sexmaculata, n. sp. 
Testaceous ; head, antennae and sides of the breast, black; 
thorax impunctate ; elytra scarcely visibly punctured, a spot at 
the base, another below the middle, the apices and the lateral 
and sutural margin, black. 
Length 2 lines. 
Head impunctate ; the carina acutely raised and narrow; eyes 
large; antennae fuscous, the three lower joints obscure testa- 
ceous, the second and third joints equal, short; thorax one half 
broader than long, the posterior margin slightly rounded, sur- 
face obsoletely impressed at either side; scutellum black; elytra 
exceedingly finely punctured, each elytron with an irregular 
shaped black spot between the shoulder and the suture at the 
base, another below the middle, joined to the lateral margin 
as well as the apices and the sutural and lateral margin, black; 
femora and underside testaceous, tibiae and tarsi darker; the 
first joint of the posterior tarsi half the length of the tibiae. 
Hab. Sumatra, Mt. Singalang (0. Beccari). 
