106 FAMILY HISTERIDAE 



it feeds. I have taken the beetle in the galleries of Tomicus Ribbentropi and 

 Rhyncholus in blue pine, in those of the two Scolyti in deodar, and in 

 Rhyncholus and Hylastes himalayensis galleries in the spruce (vide p. 576). 



The insect may prove to consist of two distinct species. An insect taken from a Tomicus 

 gallery is figured on p. 557 ; one taken from a Scolytus gallery on p. 576. 



Platysoma ? sp. 



Habitat. North-West Himalaya. 



Beetle. Black, shining above and below ; very flat and some- 

 what elongate. Head with a stout pair of long mandibles. Length, 

 3.9 mm. 



Habits. I have taken specimens of this insect 

 from beneath the bark of girdled dead ban oak (Q. incana). 

 The insect is a carnivorous one, and probably preda- 

 ceous upon some of the Coleoptera found beneath the 



bark of this tree (p. 545). FlG - 6 9-~ Platysoma 



sp. in Quercus mcana. 

 x 5. N.W. Himalaya. 

 Platysoma ? spp. 

 Habitat. Assam . 



Habits. I took two histerids sparingly in the Kachugaon forests in 

 Assam. They are predaceous upon Sphaerotrypes assamensis, Steb., and 

 Diapns fitrtivus, sp. nov., Sampson (vide pp. 487 and 631). 



CYLISTOSOMA. 

 Cylistosoma dufali, Mars. 



REFERENCES. Mars. Abeille (Platysoma), i, p. 310(1864) ; scitulum, Lewis, Ann. Xat.Hist.in, p. 280 (1889) ; 



Stebbing, Depart. Notes (Platysoma), 351 (1906). 



Habitat. North-West Himalaya. 



Habits. This histerid is predaceous upon Tomicus ribbcntropi, and 

 perhaps on Polygraphus pini, in blue pine (p. 556). 



CARCINOPS. 

 Carcinops sp. 



REFERENCE. Determined by Mr. Lewis as an undescribed species 



of Carcinops. 



Habitat. North-West Himalaya. 



^^^^^^^ Beetle. Elongate, torpedo-shaped, and very flat ; reddish brown 



SjR r\ in colour, shining. Length, 2.3111111. 



~ST Habits. I took this histerid beneath the bark of a 



girdled ban oak-tree (Q. in can a) at Kathian, in Jaunsar. 



%. 7 V,a" V N.w! The insect was found in the same tree as the 



Himalaya. Platysoma, and is undoubtedly predaceous. 



