COCKERELL: FOSSIL HYMENOPTERA FROM FLORISSANT. 41 



(4) Second (morphologically third) t. c. strong (third weak in H. similis). 



(5) B. n. meets t. m., which is curved in an opposite direction to b. n., 



its lower end oblique and more basad than the upper (less basad in 

 H. similis). 

 The H. similis used for comparison is the form obtained by Mr. Lovell in 

 Maine. 



From Heriades laminarum, the present species is easily known by its darker 

 abdomen and smaller size, as shown especially in the wing-measurements. 



Heriades bowditchi, sp. nov. 



No. 13,761 is larger (length, with the head thrust forward, 10 mm.) ; the 

 thorax was evidently very coarsely punctate, the punctures contiguous ; the 

 following measurements are in p ; curved portion of b. n., 300 ; straight por- 

 tion a little longer ; width of marginal cell, 300 ; its length, about 1350. The 

 t. m. is as in the other species. Head large, slightly wider than thorax ; 

 abdomen light-colored, with the apex brown (doubtless black in life), and two 

 broad entire brown bands on the apical half. The anterior wing (not perfectly 

 preserved) must have been a trifle over 5 mm. long. This differs from H. 

 laminarum by the very decidedly larger head, and the banded abdomen. The 

 apex of the marginal cell, seen from one direction, seems to be very obliquely 

 truncate, but this may be illusory. The stigma is pale, but it is certainly 

 much longer, and more slender than in H. laminarum. 



A second example (No. 13,436, S. H. Scudder Coll.) confirms the validity of this 

 species. The specimen is clearly a ?. 



The abdomen has broad entire reddish-brown bands on the first four segments, 

 that on the first being faint ; the marginal cell is pointed at tip, not obliquely trun- 

 cate ; its length, measured in this specimen, is the same as in the type. The t. m. 

 curves inwards below, as in the type. The legs are hairy. 



Type. — No. 2007, Mus. Comp. Zool. Florissant, Col. (No. 13,761, S. H. 

 Scudder Coll.). Named after Mr. F. C. Bowditch, Mr. Scudder's companion 

 at Florissant. 



ANTHOPHORIDAB. 



Calyptapis, gen. nov. 



Stigma small but rather broad, about like that of Melissodes, the part within the 

 marginal cell smaller than that without ; marginal cell large and broad, the tip 

 away from costa, obtusely rounded, not at all appendiculate ; three submarginal 

 cells, the third very long, and considerably the longest, narrowed a little more than half 

 to marginal ; the third t. c.with a very distinct double curve, but not abruptly bent, 

 the cell (third s. m.) slightly appendiculate at its apical point, which is not far from 

 the point of junction of the second r. n., the latter joining at the end of the straight 

 lower margin, at the beginning of the upward curve, about as in Melissodes atripes ; 

 second s. m. pentagonal, the lower inner corner produced to considerably less than a 

 right angle ; the cell is rather large, broader below than high, narrowing above, 



