32 PROCEEDINGS OF THE NATIONAL MUSEUM vol.71 



large pair of elongate plates (fig. 2; ST) which are apparently ven- 

 trally produced lobes of the eighth tergite, and in part by another pair 

 of plates (fig. 2; 9T) which are apparently formed from the ninth 

 tergite. The ovipositor sheaths (fig. 2; S) he between these two last- 

 mentioned plates and do not extend beyond the apex of abdomen. 

 The sternites are apparently completely fused. 



The length of the ovipositor and the degree to which it is projected 

 forward under the thorax varies for the different species, this new 

 species having a longer ovipositor than any of the others represented 

 in the national collection. 



In the genus Anaphes Haliday which is very closely related to 

 Anaphoidea the venter of the abdomen is usually not projected under- 

 neath the thorax, although in the genotype species it is somewhat 

 triangular at base. In Anaplies pollipes Ashmead, however, the ovi- 

 positor and the venter are exactly as in Anaphoidea despite the fact 



Fio. 2.— Anaphoidea calendrae Gahan. Diagram of female abdomen. P, Pkopodeum; ps, pro; 

 PODEAL spiracle; ST, second tergite; ST, THIRD tergite; JtT, fourth tergite; 5T, fifth tergite- 

 6T, sixth tergite; 7T, seventh tergite; 8T, eighth tergite; 9T, ninth tergite; O, ovipositor; .», 

 spiracle; S, ovipositor sheath; 7S, seventh sternite; 8S, eighth sternite; 9S, ninth steknite 



that the antennae are 9-jointed, the club not divided. Males of Ana- 

 phes and Anaphoidea are apparently indistinguishable and it is not 

 improbable that the two genera will eventually have to be merged 

 in one. 



Idiocentrus, the new genus described herewith, resetibles 

 Anaphoidea in having the ovipositor and the venter of abdomen 

 greatly produced anteriorly, but is quite different in antennal and 

 thoracic characters and the abdomen is quite differently shaped, with 

 the ovipositor sheaths distinctly exserted. 



ANAPHOIDEA CALENDRAE, new species 



Very similar to pullicrura Girault, but may be distinguished from 

 that species as well as from other closely related species by the fact 

 that the basal joint of each tarsus is distinctly longer than the second 

 joint. The abdomen of the female is also somewhat longer and 

 more acute at apex, the ovipositor longer and projected further for- 



