MICRATHYRIA. 227 
6. Micrathyria schumanni, sp. n. (Tab. VIII. fige. 39, 40; Tab. IX. 
fig. 24.) 
Micrathyria, sp., Calvert, Proc. Calif. Acad. Sci. (3) Zool. i. p. 400 (no description) (1899) ?. 
d (younger). Frons, clypeus, and labium pale blue, the frons superiorly (but not in teneral) and the vertex 
metallic blue; labrum cream-coloured ; occiput dark brown above, pale (blue?) behind. ‘Tip of the 
vertex concave; occiput, in dorsal view, more convex and projecting farther posteriorly than in the other 
species, its posterior surface with a mesial impressed line. 
Prothorax dull brown, its anterior margin and a median spot on the middle lobe pale greenish. 
Thoracic dorsum brownish (with metallic-blue reflection in teneral individual) ; the mid-dorsal carina, a short 
superior stripe (a) on each side of it and almost contiguous with it, an antehumeral stripe (0), a trans- 
verse stripe (¢) in front of each antealar sinus, and a wide humeral stripe (d), pale green ; a is confluent 
at its upper end with c, d is confluent above with c, below with 6, but 6 is not confluent with a orc; 
the humeral suture is brown and thus divides the pale green humeral stripe lengthwise. Sides of the 
thorax pale green with a brown stripe on each of the following :—mesepimeron, obsolete first lateral 
suture, second lateral suture, and metepimeron; the first and second of these brown stripes anastomose 
above the metastigma, the last one is almost continuous with its fellow of the opposite side across the 
pectus, which is chiefly pale green but has a brown stripe along the mesial side of the latero-ventral 
metathoracic carina. 
Legs dark brown, femora with two superior longitudinal lines and the inferior surface yellowish. 
Abdomen dark brown, a paler stripe on each side of 1-6 and 8-9, not reaching the apex on 5-6, 7 with a 
better-marked blue spot each side, occupying the basal three-fourths ; a ventral yellowish stripe on each 
side of 1-10. 
Abdominal appendages very nearly as in didyma, but smaller. For further details, see page 222 and the 
figures. 
$ (older), Occiput reddish superiorly ; the entire thorax and first three or four abdominal segments pruinose 
to the gradual obliteration of the former markings ; legs more obscure brown. 
Eisen and Vaslit’s Tepic male is very teneral, the other Mexican specimens are pruinose, but all the Mexicans 
lack any trace of brown apical colouring to the wings. The Guatemalan males are of different ages and 
permit tracing the changes in body-colours, accompanying the increase of pruinosity, described above ; 
they have the tips of the wings smoky or pale brown almost to the level of the last postcubital, and 
their size is smaller: abdomen 20-22, hind wing 24:5-27 mm. (cf. p. 223). 
©. Similar to the male; metallic-blue on frons and vertex less intense and less extended ; abdomen pale 
brown, or green anteriorly, the carinw and intersegmental sutures black ; terminal appendages subequal 
in length to 9. (For other details, see p. 223.) Tips of all the wings pale brown to a variable extent, 
in the maximum almost to the nodus, but in every example fading away very gradually proximally, so 
that the margin is very difficult to define. 
3 @. Front wing: antecubitals 9-11 (10), postcubitals 7-9 (8). Hind wing: antecubitals 7-8 (7), post- 
cubitals 7-10 (8). The numbers in parentheses are those of most frequent occurrence. 
Hab. Mexico, Tepic (Hisen & Vaslit, coll. Calif. Acad. Sci: 1 é) [8 o], 
Guadalajara {3 3] (Schumann), Amula in Guerrero (H. H. Smith: 1 3); Guare- 
-maza, San José in Dept. Escuintla (Wiiliamson, coll. ejusd.: 4 3,10 2). 
Taken in February (San José), July (Tepic, Guadalajara), September (Amula), and 
November (Tepic). 
This species, apparently confined. to the Pacific slope, is named in honour of 
Mr. Schumann, whose collections, now in possession of Mr. Godman, have been 
so frequently quoted in this work. 
