240 Records of the Indian Museum. [Voi,. VIII, 



Subfamily PHYMATOCERINAE. 

 Genus Tomostethus, Konow. 



Konow, in his " Genera Insectorum," says that the genus 

 Tomostethus has simple tarsal claws. On examination of the 

 European species in the collection of the United States National 

 Museum, it is found that four of the European species have the 

 tarsal claws with an erect inner tooth. Two of the North Ameri- 

 can species also have the claws with an inner tooth. 



If we wish to be consistent and to form genera or subgenera 

 on the dentation of the tarsal claws, it will be necessary to divide 

 this genus; but as a division of the genus based on the dentation 

 of the claws would group together some species which on other 

 characters would not be associated, and as all the species are not 

 available at present, no division of this genus is given. The 

 pentagonal area is obsolete in most of the species which have 

 simple tarsal claws, while it is large and defined b^^ ridges in all 

 but one species which has the claws dentate. 



Tomostethus hirticornis, sp. nov. 



Superficially this species resembles T. bar da, but may be 

 readily separated from that species by the hairy antennae and the 

 white markings on the legs. 



Female — Length 7 mm. Anterior margin of the clypeus 

 truncate, the sides rounded ; supraclypeal area flat ; middle fovea 

 large aod deep ; lateral foveae opposite the middle fovea large, 

 connected with the broad shallow antennal furrows ; pentagonal 

 area hexagonal, consisting of a depression which is sharply v-d 

 above the anterior ocellus ; postocellar furrow obsolete ; post- 

 ocellar area sharply defined laterally by the antennal furrows, about 

 one and one-half times as wide as long ; postocellar line distinctly 

 shorter than the ocellocular line ; antennae short, the first two 

 joints subequal, flagellum strongly hairy, the third joint almost 

 as long as the fourth and fifth ; stigma angulate near base, 

 slightly tapering to the subtruncate apex ; tarsal claws with an 

 erect inner tooth; sheath straight above, broadly rounded at the 

 apex, convex below ; saw strongly ribbed and regularly, finely 

 dentate. Black, shining ; pronotum, mesonotum, tegula, first 

 perapteron, prepectus and most of the mesepisternum rufous ; 

 extreme base of the anterior tibiae, the basal two-thirds of the 

 four posterior tibiae white ; wings dusk}- hyaline ; venation black ; 

 hind wings with one discal cell. 



Male. — Length 6 mm. Besides the usual differences the male 

 differs from the female only in having the anterior tibiae white on 

 the basal two-thirds ; hypopygidium broadly rounded apically. 



vSadiya, North-East Assam. Described from one female and 

 one male collected November 23rd, 1911, in a jungle path. 



Type in the Indian Museum, Calcutta. 



Allotvpe.— (Male) Cat. No. 15445, U.S.N M. 



