600 



INSECTA. 



Other ApiaricC, forming the subdivision CucuiineB, are similar to the preceding in their posterior 

 tarsi, and also in the labial palpi, which are like scaly setae ; but they are destitute in both sexes of a 

 ventral pollen-brush, and have the labrum in the form of an elongated, truncated triangle, or short 

 and nearly semicircular. The scutellum is emarginate, bidentate, or tubercular. They appear to de- 

 posit their eggs in the nests of other Bees, whence I have given them the name of Cuckoo-bees. 



Some, nearly glabrous, have the paraglossae much shorter than the labial palpi. 



Ammobates, Latr. (with 6-jointed maxillary palpi), and 



Phileremus, Latr. (with 2-jointed maxillary palpi), have the labrum elongate-triangular. In others it is short, 

 semicircular, and semi-ovate. 



Epeolus, Latr. (with three complete cubital cells, and 1-joiuted maxillary palpi), and 



Nomada, Fab., have three complete cubital cells ; the last has 6-jointed maxillary palpi. [A very numerous genus, 

 the species of which greatly resemble small Wasps.] 



Pasites, Jur., has only two cubital cells and 4-jointed palpi. 



Other Cuculina; have the body hairy in spots, and the paraglossae nearly equal the labial palpi in length. 



Melecta, Jur., with 5- or 6-jointed maxillary palpi, [il. punctata, a common, handsome liritish Bee.] 



Crocisa, Jur., vfith 3-jointed maxillary palpi, and the scutellum elongated and notched. 



Ojcaa, Klug, has the labrum oblong, and the maxillary palpi obsolete or only 1-jointed, and very minute. 



The terminal subdivision of the Solitary Bees, named Scopulipedes from the thick coating of hairs of the 

 hind legs, in which also the basal joiut of the tarsi has its outer edge dilated, so that the following joint is 

 inserted nearer to its inner angle. The under side of the abdomen is naked, or destitute of a pollen brush. 



In some the maxillary palpi are composed of four or six joints, and in many of these the mandibles have only one 

 tooth in the inside. They fly with great rapidity, and make a loud buzzing. 



Eucera, Latr., comprising those species which have the two lateral divisions of the labium as long as the labial 

 palpi, and the males have very long antennte. Apis loitgicornis, Linn, [a common British species]. 



Macrocera, Spin., differs from Eucera, having only 5-jointed maxillary palpi, and only two cubital cells. 



Melissodes, Latr., an American Eucera, with 4-jointed maxillary palpi, and three cubital cells. 



The others of this subdivision have the paraglossse much shorter than the labium, and always three cubital cells ; 

 and some have 6-jointed maxillary palpi. 



Melitturga, Latr., (with the male antennae clavate, and the palpi continuous). 



Anthophora, Latr., (with the antennas filiform, and the two terminal joints of the labial palpi minute and oblique). 

 [A, reiusa, a common British species, andj A. parietina, make their nests in walls, the latter forming a perpendi- 

 cular curved tube at its orifice, composed of grains of earth, which it destroys when it has finished laying its eggs. 



Saropoda, Latr., have only five joints in the maxillary palpi, and those of the labial palpi are continuous. 



Ancyloscelis, Latr., has only 4-jointed maxillary palpi ; the females have a strong toothed spine at the tip of the 

 posterior tibiae. Brazilian insects. My genus Melitoma, having been estabhshed upon females of this genus, 

 must be suppressed. Tetrapedia, Klug, also enters into the preceding genus. 



Centris, Fabr., differs from the preceding in having the mandibles generally with several teeth within, and the 

 maxillary palpi, as in the preceding, have only four joints. American insects. 



In the two following subgenera the maxillary palpi have only a single joint, which is obsolete in some species. 



Epicharis, Klug, has the labial palpi continuous, and each of the second and third cubital cells receives a 

 recurrent nerve. 



Acanthopus, Klug, has the two terminal joints of the labial palpi forming a small oblique branch, and the third 

 cubital cell receives two recurrent nervures. 



The terminal Apiaiise are social in their habits, the societies consisting of males, females, and netiters, 

 the feet of the last of which have the outer face of the tibiae furnished with a smooth excavation, or 

 pollen basket, in which they place the pollen mass, which they have collected with the silken coating 

 of the inside of the basal joint of the hind tarsi. The maxillarj' palpi are very minute, and composed 

 of a single joint. The antennae are elbowed. 

 Some have the posterior tibiae terminated by two spines. 



Euglossa, Latr., has the labrum square, and the proboscis 

 as long as the body. Some of these have the body nearly 

 glabrous, as E. dentata, cordata. The hind surface of the 

 basal joint of the two posterior tarsi is nevertheless coated 

 with a brush. Their habits are unknown. Others have 

 the hind tibiae convex : we also observe near the outer edge 

 a narrow longitudinal impression. Aglae, St. Farg., seems 

 established upon such individuals. 



Bombus, has the labrum transverse, with the proboscis 

 shorter than the body ; the body is robust and very hairy ; 

 the hairs often arranged in coloured bands. The Humble 

 Bee, B. lapidarhis, so well known to children, is the type of this genus, the species of which live in underground 



