114 Mr. T. V. Wollaston on undescribed Madeiran Insects. 



(S. Antonio da Serra, Ribeiro Frio, &c.) of intermediate eleva- 

 tions. 



Genus Scatopse, Geoffr. 



Scatopse tristis, PI. V. fig. 2. 



S, atra ; pedibus validis, femoribus tibiisque anticis partim testaceis ; 

 alis cinereis. — Long. corp. 1|, alar 2|^ lin. 



Inhabits Madeira proper, abounding at times in certain spots 

 at intermediate altitudes. On the 10th of August 1855, I ob- 

 served it, on the wing, in a small limestone cavern at the Forno 

 de Cal, near Sao Vincente, in such countless myriads that the 

 air appeared absolutely darkened by it. 



Genus Cheironomus, Meig. 

 Cheironomus pedestris. 



C. /cem. obscure fuscus ; palpis testaceis ; pedibus longis validis, 

 femoribus basi testaceis ; alis fuscis, halteribus albis. — Long. corp. 

 l\, alar. 3 lin. 

 Inhabits the Dezerta Grande; occurring also, I believe, on 



the Southern Dezerta and in Porto Santo. 



Genus Limnobia, Meig. 



Limnobia contraria. 



L. nigra ; antennis albidis ; thoracis disco abdominisque apice testa- 

 ceis ; pedibus flavis, femoribus, tibiis tarsisque apice nigris ; alis 

 luteis, fascia arcuata nigra ornatis. — Long. corp. 4|^, alar. 9 lin. 



Inhabits Madeira proper, occurring about the fountains and 

 water-courses of a lofty elevation. I have taken it rather com- 

 monly at the Cruzinhas in July. 



Limnobia Maderensis. 



L. fusca ; antennis palpisque subnigris ; thorace flavo, vittis tribus 

 ferrugineo-fuscis ornato, lateribus albidis ; abdomine subtus flavo ; 

 femoribus fulvis, apice nigris ; alis cinereis. — Long. corp. 2^3, 

 alar. Q\-7 lin. 



Inhabits Madeira proper, occurring in similar spots as the 

 last species. 



Limnobia haligena. 



L. ftisca ; antennis palpisque nigrescentibus ; abdominis apice dilu- 

 tiore ; pedibus robustis ; femoribus tibiisque ad apicem tarsisque 

 nigrescentibus; alis fusco- cinereis. — Long. corp. 3^, alar. Q^7^ lin. 



Inhabits Porto Santo and the Southern Dezerta. 



