AKT. 14 



THIRTEEN NEW ICHNEUMON-FLIES CUSHMAN 



Photocryptus is probably at most subgenerically distinct from 

 AcroTicnus^ but on the basis of the few species of each genus before 

 me they differ constantly by the following characters : 



Photockyptus 



Nervellus broken distinctly below mid- 

 dle and perpendicular. 



Areolet with second iutercubitus near- 

 ly perpendicular, first iutercubitus 

 strongly reclivous. 



Antennae in female nearly as long as 

 body, very slender throughout. 



Occiput broad, the temples correspond- 

 ingly narrow. 

 Eyes parallel within, not emargiuate. 



Frons impressed medially, tumid at 



sides. 

 Vertex impressed between eyes and 



ocelli. 

 Clypeus very short and broad, malar 



space short. 

 Notauli deep and distinct nearly to 



scutellar fovea. 



Mesopleurum less densely and some- 

 what more finely punctate than 

 mesoscutum. 



Propodeum with apical carina obso- 

 lete, the petiolar area coarsely, 

 transversely rugose. 



Metapleurum with a strong carina 

 running obliquely from ventral mar- 

 gin to upper side of coxal cavity. 



ACRORICNUS 



Nervellus broken above middle and rec- 

 livous. 



Areolet with second iutercubitus 

 strongly inclivous, first iutercubitus 

 nearly peiiiendicular. 



Antennae in female much shorter than 

 body, distinctly thickened toward 

 apex. 



Occiput narrow, temples broader. 



Eyes convergent below and weakly 



emargiuate opposite antennae, 

 Frons nearly flat. 



Vertex at most weakly impressed be- 

 tween eyes and ocelli. 



Clypeus not especially short, malar 

 space long. 



Notauli much weaker posteriorly and 

 usually fading out near middle of 

 mesoscutum. 



Mesopleurum more densely and coarse- 

 ly sculptured than mesoscutum, the 

 former more or less rugose. 



Propodeum with apical carina distinct, 

 the petiolar area at most finely 

 rugose. 



iletapleurum with only a short stub 

 of such a carina. 



PHOTOCRYPTUS PACHYMENAE (Crcsson) (new combination) 



Crijptanura ? pack 1/ in en a e Ckesson, Proc. Acad. Nat. Sci. Philadelphia, p. 168, 

 1873. 



In addition to a female cotype, the National Museum collection 

 contains seven other females and six males as follows : A female from 

 the C. F. Baker collection from Mexico; four males from San 

 Rafael, Jicoltepec, Mexico; one female from Carillo, Costa Rica 

 (AVilliam Schaus) ; one male from San Antonio, Nicaragua ; one fe- 

 male reared by J. Zetek from nest of Scellphron fistularae on Barro 

 Colorado Island, Panama Canal Zone; one of each sex from the 

 same locality, reared by Phil Rau, but the host not given ; one female 

 from Cano Saddle, Gatun Lake, Panama (R. C. Shannon), May, 

 1923; one female from Cabima, Panama (August Busck), May 20, 

 1911; and one female from Kalacoon, British Guiana (P. G. Howes). 



