THE PINE INVESTIGATION. 427 



16. Braconid, n. genus, Ashm, near LysitermMs. Bred from 

 cocoons found in pupa cases of Pityogenes plagiatus in scrub 

 pine bark, on Mayfield Hill, near Dellslow, Oct. 14th, '92. 



17. Caenopfianes pityophthori Ashm. Bred from cocoons 

 found in larvel (?) mines of PityophtJiorus cariniceps in young 

 dying spruce. Cheat Mountains, Aug. 29, '90, collected on 

 gooseberry flowers, Kanawha Station, May 2d, '91. 



18. Cosmophorus hopkinsii Ashm. Bred from spruce in- 

 fested by Polygraphus rutipennis. Also taken on bark in- 

 fested by same species, Cheat Bridge, Aug. 29th, '90. Later 

 found to be a common parasite of the adult of Polygraphus 

 rutipennis in spruce. Also bred from cocoons found in gallery 

 of Pityophthorus n. sp. in Norwaj 7 spruce, Morgantown, 1898. 



Mr. Ashmead refers to this species, in a letter dated March 

 7th, 1893, as follows:" * * * It belongs to the genus Cosmo- 

 phorus Ratzeburg, described in his 'Die Ichn'd. Forstins. Bd. 

 II, 71, (1848) and the only specimen known is the type, C. klu- 

 gii, Ratz., figured in detail on plate 2, fig. 37. * * * Ratzeburg 

 reared his species from Hylesinus polygraphus" (Polygraphus 

 poylgraphus Linn). 



"The genus belongs in the sub-family Euphorinae and all 

 the genera in this family are parasitic on Coleoptera, some even 

 preying upon the perfect beetles." 



19. Helcon occidentalism Ashm. Bred from cocoon taken in 

 pupa chamber of Tetropium cinnamopterum in black spruce. 

 Bayard, July 8th, ; 91. 



20. Spathius abdominalis, Ashm. Bred from cocoons found 

 in larval mines of Dryocoetes autographus in Norway spruce. 

 Morgantown, Mar. 15th, '91. 



21. Spathius brachyurus As'm.(= Spathius brevicaudws Ashm.) 

 Parasite of Pissodes strobi in pine; Dryocoetes autographus in 

 spruce, bred from cocoons. Kanawha Station and Morgantown. 



22. Spathius canadensis(? ) , Ashm. Bred from cocoons 

 found in mines of lomicus cacogravhus in white pine, Nuzums 

 March 31, '91; also reared from cocoons found in larval mines 

 of Oopturus longulus in bark of dying scrub pine, near Berke- 

 ley Springs, Mar. 10, '97. 



