306 T1PULID^>. 



Body long, slender, nearly linear. Head small, round. Eyes small, 

 round, lateral, remote. Rostrum and proboscis short. Palpi four- 

 jointed, cylindrical, curved downward ; joints of equal length. An- 

 tennce thirteen-jointed, nearly liliforni ; tirst joint cylindrical, rather 

 short and stout ; second shorter, cyathiform. Wings long and narrow. 

 Abdomen linear. Legs long, slender, bare ; tibite with minute spurs. 

 Male. Antennse a little longer than the thorax ; third and following 

 joints oval. Abdomen depressed ; anus small, obtuse, slightly subcla- 

 vate. Fein. Antennae submoniliform, a little shorter than the thorax; 

 third and following joints nearly round. Abdomen almost cylindrical ; 

 anus rather acute, with two subulate slightly recurved styles. 

 n. Wings with three externo-medial veins. Species 1. 

 a a. Wings with four externo-medial veins. 



h. Wrings with no discal areolet. Species 2. 



h h. Wings with a discal areolet. Species 3. 



1. pavida, Hal. E. M. i. 154 (1833).— G«em«.? Zett. ; Boh. 

 Obscure Havida, antennis fuscis, thorace trivittato, alis hyalinis, stig- 

 mate pallido. Long. 2|^-3 ; alar. 6 lin. 



Dull yellowish, slender. Antenufe brown. Thorax with three 

 stripes. Wings hyaline; stigma very pale brown; veins delicately 

 pubescent. Legs long and slender. Tern. Oviduct reddish. 



Rare. In Mr. Haliday's collectiou, (I.) 



3. bimaculata, Schumm. Dipt. Siles. 179. 54. pi. 4. f. 1 (1829). 

 — denima, Hal. Fusco-cinerea, thorace trivittato, alis stigmate fusco. 

 Long. 2|-3^ ; alar. 6 lin. 



" Brownish-cinereous. Antennae, abdomen, and legs dusky. Tiio- 

 rax with three stripes. Wings with veins like those of Limnobia iinma- 

 ciilata, but the subcostal vein is connected witii the first of the apex 

 l)y two transverse veins, and the first branched one of the margin has 

 a shorter fork." 



Rare. In. Mr. Haliday's collection. (I.) 



3. seiiilis, Hal. E. ]\L i. 153 (1833). Lurida, antennis abdomine 

 pedibusque fuscis, alis obscuris pubescentibus, femoribus basi flavescen- 

 tibus. Long. 2\-^ ; alar. 6 lin. 



" Dark reddish grist-colour. Vertex cinerasceut. Antenna? about 

 as long as the thorax, verticillate with long hairs, dingy ferruginous at 

 the base, darker at the tips. Mesonotum clouded, not stri]3ed. Wings 

 obscure hyaline ; the veins and the membrane towards the tip finely 

 pul)escent ; radial vein bifurcate ; anterior branch joined near its origin 

 l)y a transverse veinlet to the subcostal, forming two anterior radial 

 areolets, which are sometimes imperfectly separated ; inner one half as 

 long as the praibrachial areolet ; the connecting veinlet between the 

 mediastinal and subcostal veins opposite its middle ; exterior one dark 

 with pubescence, forming an oblong stigma ; posterior one gradually 

 widening to the tip ; cubital vein simple ; discal areolet complete, re- 

 ceiving the pobrachial areolet in the middle ; first externo-medial vein 



