J02 CATALOGUE OF 



8. MESOPS FILATUS. 



Mas. Testaceus, longus, gracillimus^ caput prothorace paullo longius, 

 antice longi-conicum et marginatum, fronte quadricarinata ; oculi 

 fusiformes, subobliqui ; antennae setacea, corpore breviores, articulis 

 3o 5um subdilatatis ; prothorax tricarinatus ; prosternum transverse 

 jugatum ; pedes gracillimi, spinulosi ; alee posticce diaphance, pallido 

 venosa, abdomen superanles. 



Male. Testaceous, long, linear, very slender. Head a little longer 

 above than the prothorax; part in front of the eyes elongate-conical, with 

 elevated borders, a little shorter than the part behind the eyes; front with 

 four keels, the inner pair diverging towards the face. Eyes fusiform, 

 slightly oblique, not prominent. Antenna? setaceous, much more than 

 half the length of the body; third, fourth and fifth joints slightly dilated. 

 Prothorax with thin well-defined parallel keels; fore border and sides 

 straight; hind border much rounded. Prosternum wilh a transverse ridge. 

 Legs very slender; spines of the four anterior tibiae extremely small; those 

 of the hind tibia? small and in two rows. Wings extending rather beyond 

 the abdomen. Hind wings pellucid: veins pale. Length of the body 

 12 lines ; expansion of the fore wings 24 lines. 



a, b. North Hindostan. From Dr. Hooker's collection. 



b. Oculi plus minusve prominuli. 

 * Caput prothorace longius. 

 f Antenna? non dilatata?. 

 J Corpus fere cylindricum. 



Genus 4. LEGUA. 



Corpus longum, gracile, fere cylindricum. Caput subpunctatum, 

 lanceolatum, prothorace supra paullo longius, apice carinatum et sulcatum. 

 Oculi ovati, obliqui, non prominuli. Antennae setaceae, graciles, capite et 

 prothorace ad uuum a?quilonga?. Prothorax antice subtruncatus, postice 

 rotundatus. Prosternum obtuse bideutatum. Pedes sat graciles; tibia? 

 quatuor anteriores spinulosa? ; tibia? posticae biseriatitn spinosae. Ala? 

 antica? angusta?, acuta?. Ala? postica? valde breviores. 



Body long, slender, nearly cylindical. Head thinly punctured, lanceo- 

 late, a little longer above and much longer on each side than the pro- 

 thorax ; part in front of the eyes a little longer than that behind them, 

 keeled and furrowed at the tip; front with four keels, of which the middle 

 pair are very approximate. Eyes oval, oblique, not prominent. Antenna? 

 slender, setaceous, as long as the head and the prothorax together. Pro- 

 thorax with three slight tiansverse impressed lines ; fore border slightly 

 truncated; hind border rounded. Prosternum with two rounded teeth. 

 Legs rather slender; four anterior tibia? wilh very minute spines; hind 

 tibia? much shorter than the hind femora, with two rows of stout spines. 

 Fore wings narrow, acute, much longer than the hind wings, which extend 

 beyond the abdomen. 



The much elongated head distinguishes this genus from Opomala, to 

 which it is more nearly allied than to Mesops. 



