Mr. J. S. Billy on the Phytophaga. 275 



XXIII, — Descriptions of new Genera and Species of Phytophaga. 

 By J. S. Baly. 



Fam. Crioceridse. 

 Genus Macrolema. 



Corpus oblongiim. Caput exsertum, coUo leniter constrictoj antennis modice 

 robustis, subelongatis, filiformibus, articiilo primo incrassato, secundo 

 brevi, tertio illo duplo lougiore, quarto tertio paidlo longiore, cseteris 

 singidatim quarto fere asqualibus ; lahro trausverso ; mandihulis sat 

 robustis, apice bifidis ; maxiUis bilobatis, lobo superiore palpiformi ; 

 palparum maxillarum articido idtimo ovato, apice truncate ; viento 

 brevi, transverso, antice concavo ; ligula semicornea, obtusa, Integra ; 

 oculis prominidis, postice orbita male delinita instructis, intus vix 

 sinuatis. Tliorax trausversus, lateribus postice angustatis. Scutellum 

 elongato-trigonatum. Elytra thorace midto latiora, parallela, dorso 

 subcylindrica. Pedes modice robusti, subelongati, simplices ; coxis anticis 

 transversis ; femoribus posticis nou incrassatis, ungue articulo penultimo 

 dimidio longiore, libero ; unguicuJis distautibus, basi non connexis. 

 Prosternmn distinctum. Abdominis segmeuto basali sequente pauUo 

 longiore. 



Type, Macrolema vittata, Baly. 



This striking genus stands in close proximity to Brachydactyla, 

 Lac, agreeing in ha\ing a distinct prostemum and in not possessing 

 conical anterior coxoe, but differing in. the third and fourth joints of 

 the tarsi being formed in accordance with the ordinary type of the 

 family, and in the anterior coxae being transverse instead of hemi- 

 spherical. From all the remaining genera, the transverse anterior 

 coxae and (Megascelis and the first section of Crioceris excepted) 

 the possession of a prosternum separate it. 



The beautiful insect on which the genus is founded has been 

 recently sent by Mr. Diggles from Dawson's River, a new settle- 

 ment in the northern part of Queensland, Australia. 



Macrolema vittata. (Plate XIII. fig. 1.) 



M. subelongata, parallela, convexa, pallide fulvo-fusca, nitida; antennis 

 supra, tibiis extrorsum tarsisque clialybeis ; thorace transverso, lateribus 

 postice augustato-siuuatis, disco utriuque unifoveolato, vitta mediali 

 antice posticoque abbre^nata et piuicto utriuque ante apicem posito, 

 nigro-piceis ; elytris striato-punctatis, nigro-piceis, sordide albo-lim- 

 batis, utroque vitta lata a basi ad pone medium extensa, pallide fiisca. — 

 r.ong. 5^-6 lin. ; lat. 3 lin. 



Hab. Dawson's River, Moreton Bay. 



Subclongate, parallel, convex, pale shining fulvo-fuscous. Head ex- 



