THE YOUNG 



NATUEALTST. 



41 



into twelve sections and a large number of 

 families, and contains the greatest bulk of 

 the British species. The following is a 

 summary of the twelve sections drawn up 

 from the above-mentioned work. 



1. ScuTATiNA has the antennae short 

 and five-jointed, all the rest having four 

 joints, except Hebriana, which has six, and 

 Reduviana, which has 4-S long. It contains 

 eight families. 



2. CoREiNA. — Insects robust or elongate. 

 Ocelli, two, thus differing from sections 4, 

 6, 8, and 9, which have none. It contains 

 five families. 



3. Berytina. — Insects elongate, narrow, 

 slender. Tibias suddenly bent at the base. 

 Contains two families. These insects re- 

 mind us of a daddy-long-legs by their long 

 and slender limbs. 



4. CcECEGENiNA. — This scctiou only con- 

 tains a single species {Pyrrhoceris apterus), 

 which is scarlet and black, of a somewhat 

 oval form, with very short elytra. 



5. LYGiEiNA. — Oval and of a hard sub- 

 stance. The membrane of the elytra have 

 4-5 simple nervures. It contains five 

 families. 



6. TiNGiDiNA differs from all the rest by 

 the elytra being of one uniform substance 

 throughout, often reticulated, and over- 

 lapping the abdomen. It also differs in 

 the tarsi being two-jointed. 



7. Hebriana only contains a single 

 species {Hebrus piisilhis) which is dull black 

 with white hairs and four white spots on 

 each elytra. It is very small, hard, com- 

 pressed. Antennae six-jointed. It is found 

 Lemna and other aquatic plants. 



8. CoRTicicoLiNA.-- This section only 

 Contains four species, divided into two 

 families. The tarsi are two-jointed, the 

 second joint being the longest. The insects 

 are rather square, flat, and thin, it con- 

 tains two families. 



9. Capsina.— This section is rather ex- 

 tensive. The insects generally rather long 



and slender, soft and fragile. Ocelli none. 

 Membrane without nervures, except two or 

 sometimes only one closed cells at the base. 

 It contains twenty families. 



10. Anthocorina. — In this section the 

 wings are often entirely wanting and the 

 elytra in a rudimentary state. For this 

 reason, perhaps, it ought to be placed first 

 after the Apterse. It contains the well- 

 known bed-bug {Acanthia lectularia), and is 

 divided into four families. 



11. OcuLATiNA. — This section only con- 

 tains one genus, the insects being stout and 

 convex, especially on the under side. The 

 eyes are large and prominent. The insects 

 are bladder-shaped, and the third pair of 

 legs are formed for jumping. 



12. Reduvina. — Soft and delicate ; an- 

 tennas 4-8 jointed, always longish and some- 

 times very long. It contains two families. 



The insects of the other sub-division — 

 (6) HYDRODROMICA, 

 run upon the surface of water ; the elytra is 

 formed of one piece ; and the claws are 

 inserted before the end of the last joint of 

 the tarsi (except in one genus). It is divided 

 into two sections 



1. Hydrometrina.— Some of the species 

 of this section are very common upon the 

 surface of both running and stagnant water. 

 The under side is generally covered with a 

 silken pile. 



2. LiMNOBATiNA. — This section only con- 

 tains a single species {Limnobates stagnorum), 

 a long, slender, dull black insect, common 

 on the surface of ponds among Lemna. 



The other great division, — 



II. Cryptocerata, 



contains those species which live in the 

 water. It contains five sections : — 



1. Apheloghirina. — Only contains a 

 single species {Aphelocheims astivalis). A 

 rare insect, broad-oval, dull light brown, 

 with small head and broad thorax. 



2. Naucorina. — Again only contains one 

 species {Naucoris cmicoides), a broad, oval, 



