257 



II. Sixth antennal joint as long, or very nearly as long, as the first. 



griseous at base; tibitc reddisli-browu ; tarsi yellow; 

 forceps of male nearly as long as the body, nearly 

 straight, incurved at tip, with a median inner tooth. 

 Body 14'"™; forceps, <? 11'"'^', $ 5""™. Mexico. 

 13. vara Sciuld. Dark maghogauy-brown, the prothorax 

 a little lighter; palpi and antennae dark luteous, 

 the latter 11-12-jointed ; pronotum scarcely as long 

 as broad, as broad as the head, the sides dull lute- 

 ous ; tegmina a little longer than the pronotum, dark 

 brown ; legs luteous ; forceps of male less than half 

 as long as abdomen, strongly arcuate, and also sinu- 

 ate when viewed laterally ; inner edge minutely den- 

 ticulate at base, beyond crenulate. Body 8'^™ ; for- 

 ceps, $ 3™"^, 2 2.6'""i. Mexico. 

 tl4. elongata Fabr. Dark fuscous ; head ferruginous ; 

 antenntie. yellowish ; margin of prothorax pale ; teg- 

 mina and legs uniform pale ; abdomen dull ferrugin- 

 ous in the middle, darker at the end ; forceps long, 

 arcuate, pale at base, fuscous at tip, with a single 

 basal inner tooth of medium size. West Indies. 



B. Sixth antennal joint plainly ohconic. 



Labia. Of small size. Wholebody flattened, long, and slen- 

 der; the abdomen occasionally a very little tumid; 

 antennte about half as long as the body, lU-13-jointed, 

 the joints moniliform or obconi co-fusiform, seldom 

 more than three times as long as broad; tegmina 

 present ; wings present or absent ; first and third 

 tarsal joints equal, the second minute, perfectly sim- 

 ple, compressed ; second and third abdominal seg- 

 ments with lateral plications ; forceps seldom more 

 than half as long as the abdomen, in the male gen- 

 erally simple, arcuate, horizontal ; in the female sim- 

 ple, straight, incurved at tip, unarmed. 



Wings wanting, or shorter than the tegmina h. 



Wings protruding beyond the tips of the tegmina c. 



^ Last ventral segment of male very broadly rounded pos- 



^ j teriorly, half as long as broad 1 . Burgessi. 



■ I Last ventral segment of male one-third as long as broad, 



I the posterior border very convex 2. hrunnea. 



C Forceps of female flattened beneath, with sharp lateral 



^ I edges d. 



'] Forceps of female scarcely flattened beneath, with 



(^ rounded lateral edges e. 



(^ Exposed part of wings, with a distinct yellow spot, 

 d.< 3. guttata. 



(Exposed part of wings uuicolorous 4. melanclioUca. 



( Last ventral segment of male with a long apical tuber- 



€. < cle 5. minor. 



( Last ventral segment of male (probably always) entire, /". 

 C Lateral tubercle of third abdominal segment prominent, 



. 1 rounded 6. nnidentata. 



•^' \ Lateral tubercle of third abdominal segment, scarcely 

 [^ more prominent than that of the second, 7. rotundata. 

 [L. annulata, known only by the description of Fabri- 

 cius, is not included in this table.) 



"■{ 



