224 The University Science Bulletin. 



Subfamily BYTHOSOPIN.^ (Dohrn). 

 Agalliopsis novella (Say). 



(PI. XXII, fig. 2.: pi. XXV, fig. 1.) 



Length, 1.1 mm.; greatest width, 0.11 mm. Apical toothed half only 

 slightly wider than basal half; distinctly curved, tip rather gradually narrowed, 

 extreme apex somewhat pointed, chitinization light; strengthening rod ex- 

 tends caudad as far as twenty-first or twenty-second dorsal tooth from apex. 

 Toothed area on doi-sal edge occupies slightly less than the apical half, teeth 

 sixty-three to sixty-five in number, very small, angular, pointed, rather regu- 

 lar in size, shape and spacing; a few double teeth present, no secondary teeth; 

 the tip is notched on both edges with small teeth, practically continuous 

 around the tip, twenty to twenty-two on \'entral edge; area of ducts in- 

 conspicuous, a few ducts faintly visible for their entire length, but for the 

 most part are invisible except for their apices and circular openings, open 

 along the ventral apical edge (seven), along the dorsal edge of the toothed 

 area, and in the basal region; the two valves of the pair are joined one to 

 the other by a narrow, elongate, chitinized connection present on the dorsal 

 edge of the basal region at a point about two-fifths the length. 



Aceratagallia uhleri (Van Duzee). 



(PI. XXV, fig. 2.) 



Length. 1 mm.; greatest width, .07 mm. Apical half very little if any 

 wider than basal half; .distinctly curved, tip gradually narrowed, extreme 

 apex rather pointed, chitinization moderately light; strengthening rod ex- 

 tends caudad as far as twenty-second dorsal tooth from apex. Toothed area 

 on dorsal edge occupies the apical half of the length; teeth about ninety 

 in number, very small, angular, pjointed, fairly regular as to size, shape and 

 spacing, larger apically; bear no secondary teeth; the tip is notched with small 

 teeth on both edges, continuous around the tip, about twenty-two on the 

 ^•entral edge; area of ducts conspicuous, ducts easily visible for entire length; 

 open along ventral apical' edge (five to six), along dorsal edge of toothed 

 area, and in basal region; the two valves of the pair are joined one to the 

 other by an elongate, naiTOW, chitinized connection present on the dorsal edge 

 at a point about one-third the length. 



This ovipositor is similar to that of Agalliopsis novella (Say) in 

 general appearance. 



Genus Idiocerus Lewis. 



The ovipositors of seven species of this genus have been examined 

 and found to be generally similar. In each case the ovipositor is 

 about the same width for the entire length and is only slightly 

 curved. Examples of light, medium and heavy chitinization are 

 found. The valve may be toothed along its dorsal edge from a 

 fourth to a little more than a half its length apically. The teeth 

 in the specimens examined are ten to thirty in number, medium to 

 large in size, rounded, evenly spaced, and may or may not bear 

 secondary teeth. The ducts may appear ductlike, granular, or be 



