TELEPHOltIDiE. 
Ins. 59 
ing the parenchyma of the phosphorescent apparatus, produce a substance 
■which becomes luminous on contact with the air emitted from the tracheas 
which traverse the apparatus. This substance is probably phosphoretted 
hydrogen ; phosphorescence due to the disengagement of this gas being 
apparently a property of protoplasm. 
Gorham, H. S. Materials fo)? a revision of the Lampyridce. Tr. E. 
Soc. 1880, pp. 1-36 & 83-112, pi. i. 
In addition to new species, many known species are briefly noticed, 
and in a few cases redescribed. The luminous parts are patches, or even 
whole ventral and sometimes dorsal plates, deprived of pigment, and 
hence often white, and vitrified in a peculiar manner, which the writer 
calls eburnated. With two exceptions, the figures represent only the 
dorsal and ventral surface of the apex of the abdomen. 
. On the Structure of the Lampyridce^ with reference to their Phos- 
phorescence. Tr. E. Soc. 1880, pp. 63-67. 
The eyes of Lampyridce are developed in magnitude according to the 
amount of luminosity of the species considered. The highest degree of 
luminosity is found in those species in which the females are apterous 
and the eyes of the males are highly developed. In other cases, both 
sexes are winged and luminous, and are doubtless mutually attracted by 
the light. In a third group, the light emitted is slight, and the eyes are 
but slightly developed, while the antennae are highly developed instead. 
The external white vitreous-looking parts are probably not the source of 
the light, which is within the body of the insect, and can be pressed 
against these windows, or withdrawn at pleasure. (Discussion, P. E. 
Soc. 1880, pp. vi.-viii.) 
Notes on the structure of Lampyridce \ Gorham, Ent. M. M. xvi. 
p. 261. 
Discussion on luminous Lampyridce, &c. ; P. E. Soc. 1880, pp. i.-iii. 
Popular notes on N. American Lampyridai ; Le Conte, Canad. Ent. xii. 
pp. 174-184. Phosphorescence; Am. Ent. iii. p. 146. 
Lamprocera castelnaui, Kirsch, and hlattina, Perty, redescribed ; 
Gorham, Tr. E. Soc. 1880, pp. 4 & 5. 
Alychnus xanthorrhaphus, Kirsch, $ figured ; id. 1. c. pi. i. fig. 20. 
Plcotomus pallenH, Loc. Transformations described and phosphores- 
cence noticed ; H. S. King, Psycho, iii. pp. 51-53. 
Fhotinus. Various known species are noticed, especially P. mcestus, 
Germ., and the varieties of P. 2 ^cnnsylvanicu 8 , De Geer ; Tr. E. Soc. 1880, 
pp. 106-111 ; cf. also Riley, Am. Ent. iii. p. 254, fig. 123. P. suturalis, 
Guer., MS., nec Schonh., = Alychnus xanthorrhaphus, Kirsch; Gorham, 
Z. c. p. 25. 
Lamprophorus tenchrosus, Walk., rcdescribed, and nijjalensis, Gray, 
diffinis, Walk., and hoyei, Mots., noticed ; Gorham, Z. c. pp. 88 & 89. 
Lamjiyris noctiluca observed as late as Oct. 8th ; Gosse, Ent. xiii. p. 20. 
Its intermittent phosphorescence ; Parfitt, Ent. M. M. xvii. p. 94. 
Luciola italica, habits ; Swinton, P. E. Soc. 1880, p. xxix. L. lusita- 
nica ; intermittent phosphorescence. Sharp, Ent. M. M. xvii. p. 69, & Eaton, 
