166 BULLETIN 66, UNITED STATES NATIONAL MUSEUM. 



Postscutellum elongate ovate. Wings large, rounded at the apex, punctured and 

 pubescent, with the costa thickened, a few imperfect nervures below it, and a long 

 one running parallel to the interior margin. Abdomen slender, composed of nine or 

 ten joints, as long as the trunk but incurved. Legs long, hinder pair remote. Coxa? 

 (trochanters), anterior and intermediate very long, hinder short. Thighs and tibiae 

 nearly of equal length, the four anterior long slender and curved, the posterior short, 

 and broad toward the apex. Tarsi composed of two joints, slenderest in the first pair; 

 basal joint forming a lobe beneath, and hollow above to receive the second, which is 

 subclavate (removed from description of genus, Curtis, 1831). 



Mr. A. H. Haliday swept two males from herbage near Belfast, 

 Ireland, which may prove to be different from the typical species. 

 His manuscript notes are interesting and of importance, so are copied 

 in part from Curtis (1831). 



They are as follows: 



It seems very delicate; the only specimen I could succeed in bringing home alive 

 I put under a watch glass, but having to leave it for an hour I found it dead, though 

 in a cool spot. It moved with a vacillating but tolerably rapid gait with the upper 

 wings extended and the lower rapidly vibrating, the abdomen, with which it smooths 

 its wings, twisting freely in all directions. The antennas are kept apart with the 

 branches divaricated, and the longer one generally bent in an angle at the articula- 

 tion; the palpi? (maxilla?) mostly in motion. All the membranous parts are capable 

 of much dilation and contraction, and are fully expanded when in lively motion, 

 but contract after death. The wings were cinereous with blacker nervures. Abdo- 

 men longer than the rest of the trunk, fleshy, of eight segments besides the anal one 

 bearing the appendage. The first three are softer, more extensile and versatile than 

 the rest, which have a single row of transverse spots down the back, one on each 

 segment, of stronger consistence and darker color; also a series of more minute ones 

 down the belly. The color of the membranous parts is cinereous yellow, the horny 

 plates of a darker blackish cinereous shade; the ovipositor (oedeagus), tibia?, and base 

 of antenna? nearly black, eyes deep black. 



Female. — Unknown. 



2. ELENCHUS TENUICORNIS Kirby (1815). 



Stylops tenuicornis Kirby, 1815. 



Elenchus tenuicornis S. S. Saunders, 1872. — E. Saunders, 1892 a, b. 



Host. — Liburnia, species; England, August 20. 

 Male. — Black; eyes subsessile; antennae very elongate, piceous, 

 rami linear, wings dark. Length about £ line. a 



3. ELENCHUS TEMPLETONII Westwood (1835). 



Elenchus Templeton, 1838. 

 Elenchus templetonii Saunders, 1872. 



Host.— Unknown, Mauritius, August (pi. 15, fig. 1). 



Male. — Fuscous; thorax strongly gibbous; eyes large, black; 

 abdominal segments constricted; fifth joint of antennas subclavate 

 and narrowed slightly at middle; elytra clavate, blackish toward 



a Male. — Aterrimus, oculis subsessilibus, antennis tenuioribus piceis, ramis lin- 

 earibus, alis nigricantibus. Long. corp. \ lin. circiter. In Mus. Brit. (Saunders 

 1872, p. 32). 



