256 PHLEBOTOMID.T.. 



forming a pale fuscous fascia hefore the middle, across wJdcJi runs an 

 anrjidar mark, wliite in some lights, as ivell as six or seven spots along the 

 margin at the apex of the veins ; three veins on the costa beanng a bhick 

 dot each, also three of the alternate veins on the interior margin ; cilia 

 pale fuscous. Legs unspotted. 



The larva is figured by Bouche and by Perris. '^ Respiratory 

 auricles of the pupa filiform-curved, coramunicating with the main 

 trachea by a dilated cylindrical portion of the latter. In the larva 

 ready for transformation they may be seen, through the skin, form- 

 ing an interrupted ring round the first part of the prothorax, be- 

 giiniing close to the sj)iracle and bent down till they nearly meet 

 below, the thickened part of the trachea being also visible. Ac- 

 cording to my observations, the main trachese rise from the pro- 

 thoracic spiracles to the anal points without any intermediate lateral 

 spiracles — as Perris has already stated, difi'ering from Bouche. I 

 found in the larva a pair of glands (ending in a filament at each 

 end) lying loose among some elongate, subcylindric, wliite, fatty 

 masses in the neighbourhood of the small intestines, nearly as in 

 Tipnla. These are the rudiments of the reproductive organs." — 

 Hal. 



Not rare. (E. S. I.) 



Genus II. PERICOMA. 



Pebicoma, Hal. MSS. Psychoda p., Meig. ; Mcq. ; Zett. Trichoptera 

 p., Meig. Kl. Tip?da]).? L. ; Gmel. ; Lam. 



Proboscis brevior, non corapressa. Labrum breve. Maxilla? ol)so- 

 letfe. Antennae mouiliforraes. Ala3 maris et fannina? a;quales. 

 Proboscis shorter than in Fsgchoda, not compressed. Labrum short. 



Maxillae obsolete. Antennae moniliforra. Wings tense. Larva with 



rows of hairs ; inhabits water, bent into a ring, the tufts of curved hairs 



detaining a covering of mud. 



a. Forked veins unequal. The anterior fork of the radial vein much 

 more distant from the base of the wing than the posterior fork. 

 Wings pointed at the end of the second simple intermediate vein 

 (^. e. the first externo-raedial). (Wings as in Psychoda.) Species 

 1-3. [The first is the only species of which I have examined the 

 mouth detached, so that probably some of them should be placed 

 with Psychoda, agreeing in the wings.] , 



a a. Anterior fork nearest the base of the wing. Priiebrachial aroolet 

 closed distinctly at about one-fourth of the length of the wing, nearly 

 opposite the anterior fork. Wings pointed at the end of the first 

 intermediate simple vein (i. e. cubital). Antenna; with the first joint 

 elongate. Species 4. 



