Description of a New Species of Spalangia. 



BY T). T. FlLr^AWAV. 



In connection with the work on the control of the horn fly 

 (Lypewsia irritans), the writer introduced from the Philip- 

 pines in 1914 a Spalangia hred from house fly and other 

 muscid pu])aria. This species, which was multiplied and dis- 

 tributed throughout the islands, ]n-oves to be new to science, 

 and is described herewith. 



Sjxildtujid pJi'iii ppnicnsiK u. s]). 



9 Length 3mm. Black, the polished surfaces brilliant, tarsi 

 brown with black tips. 



Head vertical, fairly long and thin, about twice as long as the 

 eyes, which are oval, flatly convex and hairy: surface smooth and 

 shining but marked with broad shallow punctures and almost as hairy 

 as the eyes. Face between the eyes broad, narrowing but little 

 toward the mouth; clypeal margin truncate; cheeks flat and as long 

 as the eyes; ocelli fairly large and arranged in an obtuse triangle, 

 the lateral members a little further apart than from the eye margin, 

 to anterior member about the same as to eye; a broad deep triangu- 

 lar groove on the lower part of the face smoothly surfaced, the 

 clypeal margin forming the base and the apex on a level with the 

 lower margin of the eye; a shallow punctate furrow from the apex 

 to the occipital margin passing through the anterior ocellus. Anten- 

 nae attached at the clypeus, at the basal angles of the groove; fairly 

 long, consisting of 10 segments; scape slender but somewhat clavate, 

 not reaching anterior ocellus, pedicel obconic about 4 in the scape, 

 1st funicle joint about equal to the pedicel, the next two joints about 

 as broad as long, the four following ones a trifle wider than long, 

 club undivided, not quite as long as the three preceding joints, blunt- 

 ly pointed and bearing short silvery hairs. 



Prothorax fairly wide but narrower than the head and mesothorax 

 and rather long, narrowing into a fairly slender neck where the 

 presternum advances in front of it, the two separated by a costate line; 

 the pronotum rugose and hairy, the neck less so. Mesothorax wider 

 still than the head, wider than long, the mesonotal surface polished 

 in front and behind more or less rugose and hairy with three large 

 shallow pits near the posterior margin, the lateral ones on a line 

 with the parapsidal furrows, which diverge anteriorly, becoming very 

 deep and broad; axillae smooth and shining like the scutellum and 

 separated from this by costate lines, the scutellum having a trans- 

 verse costate line in front of the hind margin and the suture between 

 it and the postscutellum costate. Propodeum nearly flat, median 

 anterior portion somewhat elevated; a longitudinal carina divides 



Proc. Haw. Ent. Soc. Ill, No. 4, May, 1017. 



