'2 RESULTS FROM GIPSY MOTH PARASITE LABORATORY. 



in many parts of Europe, l)ut has otlier hosts. Shipments of dispar 

 e^gs received at the Parasite Laboratory from Switzerland and 

 northern Germany have given out no parasites whatever. Silvestri 

 states that he has never been able to secure parasites from the eggs 

 of dispar in Italy, but there is a reasonable chance that he did not 

 keep his material long enougli to have secured the summer-issuing 

 forms had they been present. There is no evidence as yet that gipsy 

 moth egg-parasites occur in western Europe — that is, France or 

 Spain. 



Other insects are occasionally sent to this country accidentally 

 with these egg-masses, one of them, a small Dermestid beetle, really 

 feeding upon the eggs. This insect was found in considerable num- 

 bers in a large shipment of dispar eggs, sent by Prof. Trevor Kincaid 

 from Japan, which were collected after the caterpillars had emerged. 

 This species has been examined by Mr. E. A. Schwarz, who states 

 that it is probably an undescribed species and genus of the group 

 Attageni. The larvee of Anthrenus verhasci L. are constantly found in 

 the old cocoon masses of the white-marked tussock moth {Hemero- 

 campa leucostigma S. & A.) in this country and under the batches of 

 eggs already hatched, where they are engaged in feeding upon the dry 

 remains of pupae and eggs. The writer "• has pointed out that these 

 larvae also eat the healthy eggs, and that Trogoderma tarsals Melsh., 

 another Dermestid, has the same habit. This has since been seen 

 to be the case with the white-marked tussock moth in Massachu- 

 setts, and one of these species has several times been reported as 

 destroying the eggs of the gipsy moth in Massachusetts. 



The cocoons of Glyptapanteles have also been sent in on bits of 

 bark attached to the egg-masses; and other small miscellaneous 

 insects, including several species of small moths which had sought 

 the protection of the egg-masses for pupation, have come in, indicating 

 not only the great possibility of error in rearing insects from large 

 masses of material, but also the necessity for great care to avoid the 

 introduction of new insect pests. 



Family ENCYRTID.E Walker. 



Subfamily KlSTCYRTIlSr^K Howard. 

 Trit.fcj MIRINI ^^shmeaci. 



Genus SCHEDIUS, ne^A^ genus. 



Female. — Mandibles broad at apex, very obscurely tridentate; 

 outer tooth rather short, acute; middle tooth rounded, inner tooth 

 flat and with a straight edge. Antennae inserted just above border 

 of the mouth; facial depression well marked; clypeu^ well rounded 

 and elevated; vertex rather narrow, head well produced in front; 



a Technical Series No. 5, Bur. Ent., U. S. Dept. Agr., p. 46, 1897. 



