203 



particular to this insect, whose anatomy I liave examined with equal care. In the 

 present species the head is more prominent than in A. ■i-innctddhis ; Init smaller 

 and much less exposed than in A. (lissimilis. 



Aphanocephalus quadrimaculatus. 



A. quadrimaculatus, Matthews, Ann. and Mag. Nat. Hist. 1887, p. 114. 



L. c. Jf lin. = l"63mm. — Obtuse ovalis, validissime convexus, nitidissimus, sat 

 profunde punctatus, pilis flavis sparsissime vestitus, pronoto laete rufescenti, elytris 

 nigris, maculis quatuor magnis Itete rutis notatis ; capite prominenti, rufo-piceo, 

 profunde punctato, interstitiis glabris, nitidis ; oculis parvis, valde prominentibus ; 

 pronoto modico, antice modice excavato, circulariter rotundato et retlexo, modice et 

 sat remote punctato, interstitiis glabris, nitidis, hete rufescenti, margine basali 

 sinuata, angulis obtusis ; elytris capite atque pronoto vix latioribus, plus quam 

 duplo longioribus, prope media latissimis, confertim et profundissime punctatis, 

 interstitiis glabris, nitidis, nigris, macula magna, transversa, oblonga, late rufii ante 

 media, atque alia magna, rotundata, pone media utrisque notatis, lateribus late 

 marginatis, apice valde obtuso ; pedibus atque antennis sat gracilibus, Ifete flavis, 

 clavis obscurioribus. 



Body obtusely oval, exceedingly convex, very shining, rather deeply punctured, very 

 sparingly clothed with yellow hair, with the thorax brightly rufescent, and the 

 elytra black, with four large bright red spots. 



Head prominent, rufo-piceous, deeply punctured, with the interstices smooth and 

 shining; eyes small, very prominent; antenns moderate, yellow, with the club 

 dusky. 



Thorax moderate, circularly rouuded at the sides and moderately concave in front, 

 anterior margin retlexed, moderately and rather remotely punctured, with the 

 interstices smooth and shining, brightly rufescent, basal margin sinuatcd, with 

 the angles obtuse 



Scutcllnm moderate, triangular, and punctured. 



Elytra scarcely broader, more than twice longer than the head and thorax, widest 

 near tlie middle, closely and very deeply punctured, with the interstices smooth 

 and shining, black, with a large, oblong, transverse, bright red spot before the 

 middle, and a large, rounded, bright red spot behind the middle of each elytron, 

 sides broadly margined, ajiex very obtuse. 



Legs rather slender, bright yellow. 



Under parts pale castaneous, distinctly punctured throughout. 



Differs from all others in its obtusely oval form, deep sculpture, and beautiful 

 colour. 



Habitat, Asia. Found in Penang by Mr. Bowring. 



The shape and colour of this beautiful insect indicate the affinity between the 

 present family and the Coccinellidce. In outward appearance it is so unlike the 

 typical Aphauocephali, that I supposed it would belong to a distinct genus, but on 

 dissection I found that the organs of the mouth were in every respect precisely 

 similar to those of .1. heniispliericus, and that it as perfectly resembled that species 

 in every part of its external skeleton ; the same excessive development of the 

 mesosternal epiincra, and the same rudimentary condition of the metasternal cpisterna 

 and epimera existing in both species. 



