20 S. W. WTLLISTON. M. D. 



And yet, ho nearly allied does the figure of Phillipi show his species to 

 be to sahulomim that it seems very much of a question whether the 

 tibial spur is a sufficient generic character, as is considered. This char- 

 acter, together with the closure or non-closure of the marginal cell, are 

 excellent as aids to the artificial determination of the genera in this 

 family, but I believe that future researches will greatly lessen their rigid 

 application, and may throw together species with or without the tibial 

 spurs, such as D'uictrlit, and Taractirus, Calliniciis and Dasypogon, and 

 Hypenetes and Lcxtoniijlu. 



I emend the generic characters, given at full length by Baron Osten 

 Sacken (1. c. 292 j, so as to include a closely allied new species described 

 below. 



Front tibiae with a terminal curved spur. Head similar to that of 

 (hjrtop>ijc/on, but smaller and narrower (narrower, also, than that of C. 

 punctipeiiuis as figured by Phillipi, 1. c. pi. xxvii, fig. 29); mouth larger 

 and more oblique; sides of face only a little diverging below, gibbose, 

 the pile or hairs in the middle of the gibbosity, not reaching the antennae 

 or eyes. First joint of antennae subcylindrical, short, the second yet 

 shorter, the third longer than the first two taken together, narrow at the 

 base and then expanded to twice or three times as wide, gently narrowed 

 and then rounded at the tip ; at the end a minute cylindrical style, end- 

 ing in a microscopic bristle. Ocellar tubercle, dorsum of thorax and 

 edge of scutellum with stout bristles. Abdomen subcylindrical, narrow, 

 somewhat broader at the base, male hypopygium not stouter than the 

 abdomen ; female ovipositor with a star of short spines. Legs rather 

 strong; tibiae and tarsi spinous; I'ront and middle femora with a single 

 spine on the hind side a short distance before the tip. ITngues and pul- 

 villi long. Wings like those of (li/rtopoc/oii; anal cell very little open, 

 sometimes closed; anterior cross-vein about the middle of the discal cell; 

 second subniarginal cell considerably longer than the second posterior. 

 All the posterior cells open, the fourth sometimes coarctate or nearly 

 closed. 'fy])i' L. sdhnltiinini (). S. 



:'>0. Liei^toinyia !>iabiiloiiuiu. Plate II. iig. 4. 



Clavator HabidoHuni Osteu Sacken, West. Dij)l. I!91. 



% 9. — Mouth oblique : the antennae situated niidway between the ocelli and 

 oral margin, iirst joint but little longer than the second, third joint narrow ior a 

 full fourth of its length, and tJien widened rapidly to about three times as wide as 

 at base. Abdomen yellowish gray with whitish reflections; a black spot not 

 reaching the posterior margin in the middle of each segment, a similar dark spot 

 on each side of segments two. three, four and five. Legs Idack. femora at the tip. 

 and base of tibiae narrowlv red. Tjemifh 7-1 I iniu. 



