longer setse. There art- four fringe setse, the inner pair about one-half the size of 



the outer pair. 



Male. — The male of this species is a minute, delicate, two-winged insect which 

 appears about August I. Thefiliny, iridescent wings have an expanse of about 4 mm. 

 The body is rose-red, with some dark markings and a heavy brown thoracic band. 



This species should not he confounded with Eulecatiium prunastri 

 (Fon.sc), a small, very convex, dark-red, shining species, which has a 

 group of many (200 to 300) pores with interspersed spines, extending 

 from the anal lobes to near the anterior margin; the spiracular spines 

 are nearly uniform in length, being scarcely longer than the marginal 

 spines. The latter species was first recorded from the United States 

 in November, 180-t, when it was sent to this Office from Columbia, Pa., 

 on plum twigs. Europe is its original home, whence it must have 

 been exported to the United States on nursery stock or cuttings. 



Fig. 3.— Terrapin scale [Eulecanium nigrofascia um): a, Anal lobes and surrounding chitinoua area, 

 h. antenna; c, spiracular spines; rf, marginal spines; e, conical, compound pore. All greatly 

 enlarged (original). 



PARASITES. 



Very small, parasitic four-winged flies of the genus Coccophagus. 

 family Chalcididae, arc our greatest benefactors in the control of this 

 scale insect. 



REMEDIES. 



Unfortunately the lime-sulphur wash, which is such an excellent 

 remed} r for the San Jo.se scale and which at the same time controls the 

 peach leaf-curl, is worthless for treating the terrapin scale. Numerous 

 experiments in the use of the lime-sulphur wash against this scale on 

 various host plants have produced only negative results. 



[Cir. 88] 



