117 



Type 9 and allotype $ in the colleclicin of the Hawaiian 

 Entomological Society, paratypes in the collection of the Ha- 

 waiian Sngar Planters' Association, in the V. S. X;iii(nial 

 Mnsenm, and in the author's collection. 



Xamed for ^Mr. Swezey, who first hred this littU- spci-ics, 

 as ho has so many of the innnigrant ])ai'asites. 



ALIENIDAE. 



C. A Pecultau Wixgless 11 v.mkxoi'i'kuox F()Umi.\(. the 

 Type of a Xew Gk.xus axd FAAriLY. 



The apterous insect described below is so peculiar that it 

 will not fall into any of the families at pi-esent recognized, 

 and rather than alter the limits of some recognizable family 

 to include this highly anomalous form it has seemed better to 

 erect foi- it a family of its own Alikxidae. Even so it re- 

 mains doubtful in what sii|)(M-faiiiily this genus should find 

 place. 



Aeiexes n. gen. 



Itcad slightly broader tlian tlic tliorax and aljdomen, quadrate in 

 the dorsal aspect, declivous in front and prolonged into a short snout 

 in front of the large oval facetted eyes which occupy the greater part 

 of the sides of the head. Face concave for the insertion of the an- 

 tennae and coarsely obliquely striate. Antennae inserted just in front 

 of the mouth near the mandibles wliicli are small nearly straight and 

 conical without teetli. malar space longer than broad ; mouth cavity 

 small, triangular, margined, anterior to the c\'es. no evident gular 

 cavity or suture, ocelli moderate, arranged in an acute triangle, tlic 

 posterior pair adj.'icent to the iniur i)i"l)it> ;ind ermsiderahly more 

 than tlieir distance apart before the occipital margin, occiput hnely 

 margined. Antennae filiform, 13-jointed, strongly geniculate, scape 

 subcylindrical elongate, a little thicker toward the base, flattened 

 on the side next the flagellum. aliout as Jong as the pedicel and first 

 three flagellar joints not quite attaining the level of the anterior 

 ocellus, pedicel elongate, half :is long as the first tl;igellar joint, second 

 and following joints successively shorter, the last live e;ich about as 

 long as broad, the last joint about as long as broad and n.irrower and 

 rounded at ape.x. 



Pronotum loosely articulated witli tlie mesonotum, quadrate, mas- 

 sive, truncate in front and slightly .ireuately emarginate beliind with 



