154 THE RNTOMOLOGIST. 



rather similar to Ci.vius insignis and C. succineus of Germar and 

 Berendt (1856), but it is clearly distinct from all. 



Hab. In Prussian (Baltic) amber ; purchased from Mr. 

 Janson. The same piece of amber contains trichomes and an 

 anther of Quercus, such as are figured by Conwentz. 



DiPTERA. 



Sciara meunieri, n.n. (Mycetophilidse : Sciarinse.) 



Sciara prolifica, Meunier, Ann. Soc. Sc. Bruxelles, 1904, p, 65 

 (not of Felt, 1897). 



Sciara electriphila, n. sp. 



3' . Length nearly 3 mm. (head and thorax 1020 (a, abdomen 

 about 1700) ; ferruginous, antennae pale at base ; antennae 1900 /^ 

 long, 16-jointed, the middle joints cylindrical, four times as long as 

 wide; claspers thick, obtuse. In the following description all the 

 measurements are in microns : middle antennal joints about 125 long, 

 with short bristles (about 20 long) of about equal length ; last joint 

 144, penultimate 110 ; first and second together about 120 ; third 

 joint about 100, longer than fourth (as in S. villosa) ; halteres about 

 340 long, with a large elongate-oval knob, which is about 220 long 

 and 93 broad ; claws simple ; hind legs with coxa about 355, femur 

 about 830, tibia 930, tarsus 1000, of which 476 is basitarsus ; first 

 vein ending 270 before level of forking of fourth, and third ending 

 about 440 beyond that level ; width of fork of fourth in middle about 

 170. In WiUiston's table of St. Vincent species (Trans. Ent. Soc. 

 Lond. 1896) this runs to Scia)-a sp. ; the anterior furcation (of fourth 

 vein) is about as in S. debilis, except that it is not at all contracted 

 apically. 



Among the species described by Felt (1897), the venation is 

 essentially as in S. agraria, Felt, except that the anal curves 

 downwards more abruptly at end. The genitalia are as in 

 S. agraria, but more robust. 



I cannot identify this with any of Meunier's species from 

 amber. It is too large for S. variabilis, verticillata, eocenica, 

 diaholica, rara, bella, ignorata, &c. The second antennal joint is 

 much too broad for S. botuli, which is also a smaller species. 

 The third joint is too short for S. errans, but agrees with that of 

 S. splendicia, which, however, has longer hair on antenna. The 

 terminal joints are nearly as in S. villosa, but the last joint is 

 not quite so long as in that species. The joints are quite dis- 

 tinctly petiolate, as in villosa, but not so much so as in S. eocenica. 

 The last joint is too long for botuli. Compared with S. sendelina 

 the hair of antennse is too short, and the apical joint differs in 

 not being tapering. 



Hab. Baltic (Prussian) amber ; purchased from Mr. Janson. 

 Trichomes of Quercus are in the same piece. 



