132 Mr. S. A. Rohwer on new 
propodeum of Tetrastichus echthrus, Crawford, is similarly 
punctured, but the lateral carinz are different, as well as other 
parts of the body. 
Female-—Length 8 mm. Head not shrunken, ocelli 
surrounded by a deep groove which extends laterally to the 
eye-margins ; head shining, the surface finely lineate ; 
antenna as in figure 8; pronotum and sides of the 
scutum lineate ; median part of scutum reticulato-lineate ; 
scutum with a median longitudinal depression, but not a 
sulcus; scutellum reticulate, the median sulci deep and 
parallel ; propodeum more than half as long as the scutellum, 
Fig. 8. 
Tetrastichus nyemitawus, Rohwer. Antenna of paratype a. 
covered with thimble-like punctures and with a well-defined 
median carina, the lateral carinze weak ; abdomen shining, 
subequal in length with the thorax, acuminate beyond the 
middle; marginal vein about twice as long as the sub- 
marginal, Bright green; head below the antenne, scape 
beneath, and posterior and superior orbits narrowly testaceous; 
tegule and legs sordid whitish ; wings hyaline; venation 
pale brown. 
Male.—Length 2°5 mm. Similar to the female, except 
that the testaceous marks on the head are more extensive ; 
autennz slender, with very long bristles on the basal joints. 
Type-locality.— Coimbatore, South India. 
Type.—Cat. No. 20,986, U.S.N.M. 
Described from six females (one type) and four males 
(one allotype), received from Ramakrishna Ayyar under 
his number 8 and labelled: “ Parasitic on cholam stem- 
maggot. 8.vill.l6 (five, including type and _ allotype), 
7.vil.16, 9.vii.16. Insectary.” Antenna of female para- 
type a on slide 878. 
