THE DISTRIBUTION OF INSECTS IN NEW HAMPSHIRE. 



347 



the early part of July, 1 869, Mr. Sanborn searched very carefully for the 

 chrysalids of this species, spending ten or twelve hours in raising mova- 

 ble surface stones, and in four or five places clearing away to the depth 

 of several feet the smaller blocks of stone lying in the " rock rivulets," 

 as he appropriately terms the slight gulleys wholly devoid of vegetation, 

 which are scattered everywhere over the plateaus, and which mark the 

 course of the surface waters after rain. He succeeded in securing only 

 two living specimens. Nine others were either infested by ichneumons 

 ( ' Eulopkus semidea Pack., and Encyrtus Montinus Pack., described 

 below*), or were the empty shells of the previous year. They were all 

 found imbedded between the sides of the rock and the long, dense, crisp 

 moss surrounding it, between half an inch and an inch and a half below 



* "Eulophus semideiz nov. sp. [Fig. 46]. Belongs apparently to the same section of the genus as E. amemp- 

 simus Walk. 



"o ( two specimens). Antennae filiform, not increasing in width toward the tip, rather long, much longer than 

 in E, amempsimus , and very hairy, dark brown. Head deep blue, shining, punctured as 

 usual, under a not powerful lens ; mandibles, and other mouth parts, pale piceous ; thorax, 

 as well as the whole body, deep blue ; fore wings broader at end, clear ; spur distinct, 

 dilated at tip ; coxae concolorous with body ; trochanters and femora brown, tips of latter 

 pale testaceous ; tibiae brown, pale at tip, or almost wholly pale ; tarsi dark on terminal 

 joint, the last joints of hinder pair dark ; abdomen as long as the thorax, narrow lanceolate 

 oval, subacutely pointed, more so than in E. amempsimus, concolorous with rest of body, 

 but with steel blue reflections at base. Length, .06 inch." Fig. 46. 



" $ (ten specimens). Eyes rather larger, and a little nearer together than in the $ ; antennae longer in pro- 

 portion than in E. amempsimus, the club being much longer. The whole body is shorter and broader than in 

 E. amempsimus and E. eneiigamus Walk., the abdomen especially being much broader, and the apex less atten- 

 uate; of the same color as the $ , with the base of the abdomen more distinctly steel blue. Body smooth and 

 shining, not perceptibly punctate under a strong lens. Legs': trochanters whitish at tip ; femora dark brown, 

 whitish at each end; tibiae and tarsi white, the terminal joint of tarsi dusky. Length .08 inch." 



"Encyrtus Montinus nov. sp. [Fig. 47]. Closely allied to E. Swederi of Europe (Walker's type). 



' !f (one specimen). Ocelli placed in a narrow triangle; eyes large and near together; head and body 

 beneath testaceous; a row of minute pits along the orbits in tront, 

 rather remote from the eyes; mouth parts concolorous with the head; 

 antennae : joint two flattened, clavate ; joints one to three darker than 

 the head, four to seven brown, eight and nine yellowish, ten and eleven ! 

 (club) blackish ; the eight terminal joints hairy ; prothorax concolo- 

 rous with the head ; the rest of the thorax and the propodeum bluish 

 green (not very dark) with metallic reflections ; surface smooth and 

 shining, with small, not dense punctures ; sides of thorax below the 

 insertion of wings, and legs dark testaceous ; tegulas dull testaceous ; 

 wings smoky, paler toward the outer edge, with a broad, curved, 

 conspicuous white band, extending from the pterostigma, where it is 

 dilated, across to the inner edge of the wing ; pterostigma with a slight 

 spur toward the centre of the wing, enclosing a narrow V-shaped space ; abdomen regularly triangular, the tip 

 acute, a little longer than broad, being being pretty short, dark brown, shining, sending off dull metallic hues ; 

 under side of a paler bronze color. Length .09 inch." 



" Differs from E. Swederi in not having any twin tuft of hairs on the mesoscutum, and in the broadly dilated 

 second antennal joint; the middle pair of legs has a large tibial spur, larger than in E. S-wederi, and the middle 

 tarsi are larger; otherwise, except in the remarkable differences in coloration, it apparently belongs to the same 

 section of the genus as E. Swederi." 



" ' Found alive in an old chrysalis case of (E. semidea,' Mt. Washington. F. G. Sanborn." Communication 

 of Dr. A. S. Packard. 



Fig. 47. 



