288 The Philippine Journal of Science \m 



smooth and shining, except for a large, deep, oblique, crenulated 

 discal furrow, surface on either side of this furrow somewhat 

 swollen. 



Abdomen subsessile, the three segments visible from above 

 broadened from base to third segment ; basal width of first tergite 

 two thirds the apical width and the length about twice; second 

 tergite as long as first, its length one and a half times the basal 

 width, the latter three fourths of the apical; third tergite sub- 

 quadrate, basal margin strongly incurved, apical margin trun- 

 cate; remaining segments small, short, smooth, and shining, 

 and in the type specimen bent downward at right angles to re- 

 mainder of abdomen ; ffrst two tergites shining, strongly, longi- 

 tudinally straight-striate, more strongly so on first; first with a 

 strong median carina ; basal two thirds of third tergite with the 

 striae directed obliquely toward lateral margins, posterior third 

 with strong, curved, transverse striae. Hind tibial spurs short, 

 straight, and pubescent. 



Stigma large, deep, strongly angled below at middle where 

 radius is inserted ; first abscissa of radius more than half length 

 of second; second cubital cell somewhat narrowed distad, the 

 length twice the greatest width, first transverse cubital oblique, 

 second vertical and decolored; recurrent nervure inserted a 

 half of its length from apex of first cubital cell, intervening vein 

 decolored. Radius in hind wings entirely obsolete; nervellus 

 vertical. 



Luzon, Laguna, Mount Maquiling (coll. Baker). 



Genus HETEROGAMTJS Wesmael 



While very few species have been described in this genus, they 

 have a wide distribution, being found in Europe, North America, 

 Central America, and New Guinea. It is rather to be expected, 

 therefore, that several species will be found in the Philippines. 

 The description of one Philippine species follows: 



Heterogamus longicoUis sp. no v. 



Fulvo-ochraceous throughout, slightly darker on abdominal 

 tergites ; interocellar area black. Wings slightly obscured, stig- 

 ma and veins piceous, veins on distal half of wing, with proximal 

 two thirds of stigma, paler. Palpi stramineous. Ovipositor 

 black. 



Female, length, 5 millimeters; ovipositor very short and 

 subapical. 



Head viewed from above with vertex back of ocelli very long, 

 roundly narrowed back of eyes, entire surface finely and shallow- 



