REDUVIIDiE. 
701 
in having the wings absent in the females or in both sexes ; the female P. 
marginatus, Rent., attains a length of one and a half inches. None 
are common except in the hills. 
Apiomerince. - Four species not known 
in India. 
Harpactorince. —Distinguished by the 
quadrangular areole at the base of the 
membrane. Harpactor costalis, Stal., is 
the commonest Reduviid seen in the 
fields by day, a red and black active 
insect that runs about among low vege¬ 
tation. It is predaceous upon the Red 
Cotton Bug, Dysdercus cingulatus, which 
it resembles in colouring. H. fuscipes, 
Fabr., is also found but has not the 
yellowish stripes on the sides of the ab¬ 
domen beneath. H. marginatus , Fabr., 
with the posterior half of the pronotum 
roughened, is common in the Central 
Provinces. Sycanus versicolor , Dohrn, is not uncommon, a striking 
red and black form with the 
sides of the abdomen dilated. 
Cydnocoris crocatus, Stab, is a 
more slender, yellow species, 
found in rice fields. Isyndus 
obscurus , Dalb, though a hill 
form from Assam is worth 
note as it closely mimics the 
common Coreid Elasmomia 
granulipes, which occurs in 
the same localities. Two com¬ 
mon forms are Coranus 
spiniscutis, Rent., and C. 
obscurus , Kby., small incons¬ 
picuous species found widely 
spread. They are typically 
members of the immense fauna 
Fig. 470— Physorhynchus 
Marginatus, Female. 
