456 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. 54. 



It includes the following species : 



1. crawfordd Pierce (Stylops), parasitic on Andr^eim crawfordi 

 Viereck; Texas. 



2. trimmerana Smith (Stylops), parasitic on Andrena trirrmierana 

 Kirby; England. 



3. solidulae Pierce (Stylops), parasitic on AndreTia solidula Vie- 

 reck; Washington. 



4. shannoni Pierce ; host unknown ; Maryland. 



1. NEOSTYLOPS CRAWFORDI Pierce. 



Plate 70, figs. 3, 4. 



Stylops cratvfordi Pierce, 1909, U. S. Nat. Mus., Bull. 66. pp. 100-102. 

 Errata : Gen. Insect. Page 52, lines 16, 17, read " 5 " for " 4." Page 16, 

 line 36, add " PI. 1, unnumbered figure." 



Male. — The male has a very interesting mesothoracic spiracle 

 located on the margin between the propleuron and mesopleuron and 

 immediately at the base of the elytra. This spiracle has a very large 

 oval opening and is of the annular type with a crenulate soft lip. It 

 is impossible to see the form of the inner opening and of the closing 

 apparatus. The figure given shows the position with relation to the 

 elytron, which happens to be so folded as to obscure a considerable 

 portion of the opening. It is bounded in front by the proepimeron, 

 above by the mesopraescutum+scutum, and behind by intersegmental 

 skin (pi. 70, fig. 3). 



A drawing of the side view of the male (pi. 70, fig. 4) is also 

 presented. 



Table of measurements of female. 



2. NEOSTYLOPS TRIMMERANA Smith. 



Stylops trimmerana Smith, 1856, Trans. Ent. Soe. Lond., ser. 2a, vol. 4, p. 



118. pi. 24. fig. 6. 

 Stylops aterrima (Newport) {trimmerana Smith) Saunders, 1872, Trans. 



Ent. Soc. Lond., 1871, p. 29. [Not aterrima Newport.] 



According to the drawings made by Smith, this species differs 

 greatly from atennma in thoracic characters and should be referred 

 to this genus. 



